Composition for producing concrete, in particular lightweight porous concrete and high-performance concrete, mortar, floating screed and filler, and method for the production and use thereof

Abstract

The invention relates to a composition for producing concrete, in particular lightweight porous concrete, floating screed, 3D printing mortar or filler, which is characterized in particular in that the amount of plasticizer and / or retarder ranges, in each case, from 0.05 to 2.00 wt. %, based on the total weight of cement, wherein the composition has a wet density ranging from 100 to 1250 kg / m3 for lightweight porous concrete, a wet density ranging from 1800 to 2200 kg / m3 for 3D printing mortar, a wet density ranging from 2000 to 2200 kg / m3 for floating screed and a wet density ranging from 1900 to 2000 kg / m3 for filler. The invention also relates to the concrete produced from the composition by drying, in particular lightweight porous concrete, floating screed, 3D printing mortar or filler, and to a method for the production of said compositions and use thereof as concrete, in particular as lightweight porous concrete, as floating screed, as 3D printing mortar or as filler.

Description

Composition for producing concrete, in particular aerated lightweight concrete and high-performance concrete, mortar, flowing screed and filler, as well as processes for their production and their use. Technical field of the invention The present invention relates to a composition for producing concrete, in particular aerated lightweight concrete and high-performance concrete, mortar, in particular 3D printing mortar, flowing screed and filler, as well as a process for producing this composition and its use. The concrete is in particular aerated lightweight concrete, also called foam concrete. The composition of the composition can be individually adapted to the ambient temperatures of the composition. Likewise, in the processes according to the invention for producing these compositions, the amounts of the individual components are individually adapted to the ambient temperatures.State of the Art: The compositions known from the prior art generally do not take into account the outside temperatures prevailing on the construction site or the ambient temperatures prevailing in the shell. Therefore, the object of the present invention was to provide a composition that allows this, as well as a method for its production. In addition, conventional aerated lightweight concrete has a maximum wet density of 500 kg / m 3 It was therefore an additional object of the invention to provide a porous lightweight concrete with a wet density of up to 1250 kg / m 3Description of the invention This object is achieved by a composition for producing concrete, in particular for producing high-performance concrete and aerated lightweight concrete, mortar, in particular 3D printing mortar, flowing screed or filler, which composition contains the following components: i) a powdered main component selected from CEM IZement, CEM II cement, sand, quartz sand and mixtures thereof, preferably selected from 52.5 R cement, 42.5 R cement, 32.5 R cement, sand, quartz sand and mixtures thereof; ii) a further first powdered secondary component selected from CSA cement, calcium aluminate cement and mixtures thereof; iii) optionally a further second secondary component selected from glass fibers, iron oxide powders and colorants; iv) at least one liquid secondary component selected from retarders, plasticizers and shrinkage reducers; v) optionally at least one liquid foaming agent; and vi) water;wherein the amount of plasticizer and / or the amount of retarder is each in the range of 0.05 to 2.00 wt.%, based on the total weight of cement in the composition; and; wherein the composition has a wet density in the range of 100 to 1250 kg / m 3 for aerated lightweight concrete, a wet density in the range of 1900 to 2600 kg / m 3 for concrete including high-performance concrete, a wet density in the range of 1800 to 2200 kg / m 3 for 3D printing mortar, a wet density in the range of 2000 to 2400 kg / m 3for flowing screed and a wet density in the range of 1800 to 2200 kg / m3 for leveling compound; with the proviso that the powdered main component i) for the composition for producing aerated lightweight concrete is selected from CEM I cement, CEM II cement, and mixtures thereof, preferably selected from 52.5 R cement, 42.5 R cement, 32.5 R cement, and mixtures thereof. This means that the composition for producing aerated lightweight concrete, in contrast to mortar, in particular 3D printing mortar, flowing screed, and leveling compound, does not contain sand or quartz sand.The invention is therefore directed to a composition for producing aerated lightweight concrete, which contains the following components: i) a powdered main component selected from CEM IZement, CEM II cement and mixtures thereof, preferably selected from 52.5 R cement, 42.5 R cement, 32.5 R cement and mixtures thereof; ii) a further first powdered secondary component selected from CSA cement, calcium aluminate cement and mixtures thereof; iii) optionally a further second secondary component selected from glass fibers, iron oxide powders and colorants; iv) at least one liquid secondary component selected from retarders and plasticizers; v) at least one liquid foaming agent; and vi) water; wherein the amount of plasticizer and / or the amount of retarder is in the range of 0.05 to 2.00 wt.%, based on the total weight of cement in the composition; and wherein the composition has a wet density in the range of 100 to 1250 kg / m. 3In particularly preferred embodiments, the aerated lightweight concrete according to the invention can also contain the following additional components: -The optional additional second secondary component iii) can be selected from glass fibers, iron oxide powders and colorants, as well as graphite powder, fly ash, silicon dioxide, quartz flour, basalt, plastic fibers, accelerators, viscosity regulators, polyurethanes, polyvinyl acetates, poly(ethylene-vinyl acetate)s and poly(organo)siloxanes (so-called silicones). In contrast to the composition for producing aerated lightweight concrete, the composition for producing concrete does not contain a foaming agent. The invention is therefore directed to a composition for producing concrete includingHigh-performance concrete containing the following components: i) a powdered main component selected from CEM II cement, CEM II cement, sand, quartz sand, and mixtures thereof, preferably selected from 52.5 R cement, 42.5 R cement, 32.5 R cement, sand, quartz sand, and mixtures thereof; ii) optionally another first powdered secondary component selected from CSA cement, calcium aluminate cement, and mixtures thereof; iii) optionally another second secondary component selected from glass fibers, iron oxide powders, and colorants; iv) at least one liquid secondary component selected from retarders and plasticizers; and vi) water; wherein the amount of plasticizer and / or the amount of retarder is in the range of 0.05 to 2.00 wt.%, based on the total weight of cement in the composition; and wherein the composition has a wet density in the range of 1900 to 2600 kg / m3.A special feature of the compositions according to the invention is that their compositions can be individually adapted to the ambient temperatures of the respective composition. The additional second secondary component iii) can also be selected from graphite powders, fly ash, silicon dioxide, quartz flour, basalt, plastic fibers, accelerators, viscosity regulators, polyurethanes, polyvinyl acetates, poly(ethylene-vinyl acetate)s, and poly(organo)siloxanes (so-called silicones). The invention is also directed to a composition for producing mortar, in particular 3D printing mortar, which contains the following components: i) a powdered main component selected from CEM IZement, CEM II cement, sand, quartz sand and mixtures thereof, preferably selected from 52.5 R cement, 42.5 R cement, 32.5 R cement, sand, quartz sand and mixtures thereof; ii) a further first powdered secondary component selected from CSA cement, calcium aluminate cement and mixtures thereof; iii) optionally a further second secondary component selected from glass fibers, iron oxide powders and colorants; iv) at least one liquid secondary component selected from the group of retarders and shrinkage reducers; and v) water; wherein the amount of retarder is in the range of 0.05 to 2.00 wt.%, based on the total weight of cement in the composition; and wherein the composition has a wet density in the range of 1800 to 2200 kg / m 3The further second secondary component iii) can also be selected from graphite powders, fly ash, silicon dioxide, quartz flour, basalt, plastic fibers, accelerators, viscosity regulators, polyurethanes, polyvinyl acetates, poly(ethylene-vinyl acetate)s, and poly(organo)siloxanes (so-called silicones). In particular, it is selected from glass fibers, iron oxide powders and colorants, as well as poly(organo)siloxanes, polyvinyl acetates, poly(ethylene vinyl acetates) and polyurethanes. The invention is also directed to a composition for producing flowing screed, which contains the following components: i) a powdered main component selected from CEM IZement, CEM II cement, sand, quartz sand and mixtures thereof, preferably selected from 52.5 R cement, 42.5 R cement, 32.5 R cement, sand, quartz sand and mixtures thereof; ii) a further first powdered secondary component selected from CSA cement, calcium aluminate cement and mixtures thereof; iii) optionally a further second secondary component selected from glass fibers, iron oxide powders and colorants; iv) at least one liquid secondary component selected from retarders and plasticizers; andvi) water;wherein the amount of plasticizer and / or the amount of retarder is each in the range of 0.05 to 2.00 wt.-%, based on the total weight of cement in the composition; and wherein the composition has a wet density in the range of 2000 to 2400 kg / m. 3 has. The further second secondary component iii) can also be selected from graphite powders, fly ash, silicon dioxide, quartz flour, basalt, plastic fibers, accelerators, viscosity regulators, polyurethanes, polyvinyl acetates, poly(ethylene-vinyl acetate), and poly(organo)siloxanes (so-called silicones). In particular, it is selected from glass fibers, iron oxide powders, and colorants, as well as poly(organo)siloxanes, polyvinyl acetates, poly(ethylene-vinyl acetate), and polyurethanes.The invention is further directed to a composition for producing filler, which contains the following components: i) a powdered main component selected from CEM IZement, CEM II cement, sand, quartz sand and mixtures thereof, preferably selected from 52.5 R cement, 42.5 R cement, 32.5 R cement, sand, quartz sand and mixtures thereof; ii) a further first powdered secondary component selected from CSA cement, calcium aluminate cement and mixtures thereof; iii) optionally a further second secondary component selected from glass fibers, iron oxide powders and colorants; iv) at least one liquid secondary component selected from retarders and plasticizers; and vi) water; wherein the amount of plasticizer and / or the amount of retarder is in the range of 0.05 to 2.00 wt.%, based on the total weight of cement in the composition; and. wherein the composition has a wet density in the range of 1800 to 2200 kg / m 3The further second secondary component iii) can also be selected from graphite powders, fly ash, silicon dioxide, quartz flour, basalt, plastic fibers, accelerators, viscosity regulators, polyurethanes, polyvinyl acetates, poly(ethylene-vinyl acetate)s, and poly(organo)siloxanes (so-called silicones). In particular, it is selected from glass fibers, iron oxide powders, and colorants, as well as poly(organo)siloxanes, polyvinyl acetates, poly(ethylene-vinyl acetate), and polyurethanes. The wet density is also referred to as the bulk density.The special feature of the composition according to the invention is that it can be produced in situ at an ambient temperature of the composition of 0°C to 50°C, and / or the individual amounts of the liquid secondary components iv) are adapted to the ambient temperatures of the composition and / or the individual amounts of the liquid components iv) can be precisely dosed to a measurement accuracy of at least 5% of the total amount used, preferably of at least 2% of the total amount used, particularly preferably of at least 1% of the total amount used. This applies to both the plasticizer(s) and the retarder(s). The term "cement" here encompasses the powdered main component and the first powdered secondary component, insofar as this is cement, ie the term "cement" encompasses CEM I cement, CEM II cement, CSA cement, calcium aluminate cement, and mixtures thereof. In particular, the term “cement” includes 52.5 R.Cement, 42.5 R cement, 32.5 R cement, CSA cement, calcium aluminate cement, and mixtures thereof. In a preferred embodiment of the compositions according to the invention, components i) to v) make up at least 90% by weight of all components present in the compositions according to the invention, except water. This means that, based on the total weight of components i) to v), a maximum of 10% by weight, preferably a maximum of 7% by weight, particularly preferably a maximum of 5% by weight, of further components can be present. Such additional components are, for example, fly ash, lime (CaO, Ca(OH)2, CaCO3), limestone flour, pozzolans, kaolin, silica, in particular SiO2, hydroxyapatite (Ca5[OH / (PO4)3]), tricalcium phosphate, gypsum, sand, tuff, trass, rock flour, silica dust, silica suspension, granulated blast furnace slag, limestone flour, quartz flour, and other additives known to those skilled in the art for concrete, in particular for aerated lightweight concrete, for mortar, for 3D printing mortar, for flowing screed or for filler.In a further preferred embodiment of the compositions according to the invention, they contain no further components apart from components i) to vi). The individual components are now described in detail below. The so-called standard cements and their requirements are described in DIN EN 197-1: CEM I cements have a clinker content of at least 95%, while CEM II cements can contain up to 20% auxiliary materials. R cements are cements with high initial strength and rapid strength development.42.5 R cement, also under. Known as "CEM II Cement" or "AS 42.5 R Cement," it is a cement of strength class 42.5 R that can be produced by grinding Portland cement clinker, granulated blast furnace slag, and gypsum. Instead of granulated blast furnace slag, it can contain other latent hydraulic components such as fly ash or pozzolans. 52.5 R Cement, also called "CEM I 52.5 R Cement," is a cement of strength class 52.5 R that is produced by grinding Portland cement clinker and gypsum. Portland cements are calcium silicate-based, while CSA cements are based on calcium sulfoaluminates and the raw materials limestone, bauxite, and gypsum. High-alumina cement is described in DIN EN 14647. Alumina is the name for aluminum oxide. Alumina cement is produced, for example, by slowly cooling melts with monocalcium aluminate composition or by sintering similarly composed raw mixtures of limestone and the aluminum ore bauxite (also known as white cement).In contrast to silicate cements, it consists essentially of monocalcium aluminate (CA), which is why it is also commonly referred to as calcium aluminate cement. Other essential components are C12A7 in lime-rich alumina cements and Ca2 in lime-poor ones. The SiO2 content is bound either as C2S or C2AS (gehlenite). Setting and hardening are based on the formation of calcium aluminate hydrates, whereas in silicate cements it is based on the formation of calcium silicate hydrates (CSH). Alumina cement hydrates significantly faster than Portland cement, binds about twice as much water, and releases almost no Ca(OH)2. High-alumina cement is a finely ground slag rich in alumina. Calcium aluminate cement is also commercially available under the name "Ciment Fondu." In a preferred embodiment, the powdered main component i) is 52.5 R cement or 42.5 R cement or a mixture thereof, preferably the powdered main component i) is 52.5 R cement, and the first powdered secondary component ii) is CSA cement or calcium aluminate cement or a mixture thereof, preferably the first powdered secondary component ii) is CSA cement, in particular when the composition is a composition for producing aerated lightweight concrete. In a further preferred embodiment, the weight ratio of component i) to component ii) is in the range from 10:1 to 1:1, preferably in the range from 5:1 to 1.2:1, particularly preferably in the range from 4:1 to 1.3:1, preferably when component i) is CEM I cement and component ii) is CSA cement, particularly preferably when component i) is 52.5 R cement and component ii) is CSA cement.If a composition is used to produce aerated lightweight concrete, wherein component i) is CEM I cement, in particular 52.5 R cement, and component ii) is CSA cement, its workability can be extended to outside temperatures of -10°C if the CSA cement is at least partially replaced by calcium aluminate cement, preferably if the CSA cement is replaced by calcium aluminate cement in a range of 30 to 70 wt.%, particularly preferably in a range of 20 to 80 wt.%, most particularly preferably in a range of 10 to 100 wt.%. The same effect can also be achieved with compositions for producing flowing screed, 3D printing mortar or filler if the CSA cement is at least partially replaced by. Calcium aluminate cement is replaced, preferably if the CSA cement is replaced by calcium aluminate cement in a range of 30 to 70 wt.%, particularly preferably in a range of 20 to 80 wt.%, most preferably in a range of 10 to 100 wt.%. If the composition is a composition for producing porous lightweight concrete, the total amount of cement in kg in the composition is preferably in the range of 35 to 80%, preferably in the range of 40 to 75% of the wet density in kg / m 3 . The proportion of cement in the porous lightweight concrete, based on the total weight of the composition, is preferably in a range of 42 kg per 100 kg of composition at a wet density of 100 kg / m 3 up to 920 kg per 1250 kg composition at a wet density of 1250 kg / m 3Sand is a naturally occurring, unconsolidated sediment composed predominantly of mineral grains with a grain size of 0.063 to 2 millimeters. The term "sand" is not dependent on the mineral composition. However, the majority of sands consists primarily of quartz grains. This quartz sand, in particular, is an important raw material for the construction industry and is also used in the composition according to the invention for the production of flowing screed, 3D printing mortar, and filler. The composition for the production of 3D printing mortar preferably has a weight ratio of sand to the total amount of cement in the range of 3:1 to 1.5:1, particularly preferably in the range of 2.8:1 to 2.0:1, and most preferably in the range of 2.6:1 to 2.2:1. The preferred cement is a mixture of CEM / Cement. and CSA cement or a mixture of CEM II cement and CSA cement, particularly preferably a mixture of 52.5 R cement and CSA cement or a mixture of 42.5 R cement and CSA cement or a mixture of 32.5 R cement and CSA cement, very particularly preferably a mixture of 52.5 R cement and CSA cement or a mixture of 42.5 R cement and CSA cement, wherein the CSA cement can be replaced by calcium aluminate cement to an extent of 50-100 wt.%. The composition for the production of filler preferably has a weight ratio of sand to the total amount of cement in the range of 2.5:1 to 1.0:1, particularly preferably in the range of 2.0:1 to 1.2:1, very particularly preferably in the range of 1.8:1 to 1.3:1.The cement used is preferably a mixture of CEM I cement and CSA cement or a mixture of CEM II cement and CSA cement, particularly preferably a mixture of 52.5 R cement and CSA cement or a mixture of 42.5 R cement and CSA cement or a mixture of 32.5 R cement and CSA cement, very particularly preferably a mixture of 52.5 R cement and CSA cement or a mixture of 42.5 R cement and CSA cement, wherein the CSA cement can be replaced by calcium aluminate cement to an extent of 50-100 wt.%. A certain proportion of the cement can also be replaced by fillers known to those skilled in the art, in particular a proportion of up to 30 wt.%, preferably a proportion in the range of 5 to 15 wt.%, based on the total weight of the cement.The composition for the production of flowing screed preferably has a weight ratio of sand to the total amount of cement in the range from 4:1 to 2.0:1, particularly preferably in the range from 3.5:1 to 2.2:1, most preferably in the range from 3.0:1 to 2.4:1. The cement used is preferably a mixture of CEM I cement and CSA cement or a mixture of CEM II cement and CSA cement, particularly preferably a mixture of 52.5 R cement and CSA cement or a mixture of 42.5 R cement and CSA cement or a mixture of 32.5 R cement and CSA cement, very particularly preferably a mixture of 52.5 R cement and CSA cement or a mixture of 42.5 R cement and CSA cement, wherein the CSA cement can be replaced by calcium aluminate cement to an extent of 50-100 wt.%. The second powdered secondary component iii) is selected in particular from glass fibers, iron oxide powders, and colorants, which are described in more detail below.Alkali-resistant glass fibers are particularly used as glass fibers. These can replace the previously used asbestos. Even a glass fiber content of 0.4 vol.% significantly improves the performance of concrete, especially aerated lightweight concrete, as cracking is reduced. Glass fibers are particularly added to produce components with special impermeability requirements, such as flowing screed. Since glass fibers do not rust, no minimum concrete cover or minimum aerated lightweight concrete cover is required for components with a glass fiber content of 2.5 to 5 vol.% that do not contain any additional metallic reinforcement. This means that the minimum thickness can be reduced to just a few millimeters, allowing extremely delicate shapes to be produced. The amount of glass fiber is preferably in the range of 0.1 to 1.5 wt.%, based on the total amount of sand and cement, particularly preferably in the range of 0.2 to 1.2 wt.%, and most preferably in the range of 0.3 to 1.05 wt.%. The iron oxide powder includes both artificially produced iron oxide pigments and iron oxide powder obtained by grinding corresponding iron ores such as hematite, limonite, goethite, or magnetite. The term iron oxide powder also includes iron oxide red, also called Mars red, which consists of Fe2O3; iron oxide yellow, also called Mars yellow, which consists of Fe2O3, H2O, or FeOOH; and iron oxide black, also called Mars black, which predominantly contains Fe3O4.Any coloring substance known to those skilled in the art that is suitable for coloring, preferably for permanent coloring, concrete, in particular aerated lightweight concrete, mortar, especially 3D printing mortar, flowing screed, and filler, such as earth colors, can be used as a colorant. Earth colors are inorganic pigments. They are obtained by grinding colored minerals or mineral mixtures. The color of some can be changed by firing. For example, yellow ochre turns red when heated. Frequently used earth colors are ochre, green earth, red ochre, terra di sienna, umber, chalk, and vermillion. The iron oxide pigments and the other colorants can also be added in liquid form, especially as an aqueous suspension. The total amount of iron oxide powders and colorants is preferably in the range of 0.5 to 7% by weight, based on the amount of R. Cement, i.e. based on the amount of 52.5 R cement or 42.5 R cement, particularly preferably in the range of 0.8 to 6 wt.%, most preferably in the range of 1 to 5 wt.%. The iron oxide can also be used as an aqueous dispersion, as described, for example, in paragraphs

[0013] and

[0014] DE 60311180 T2. The colorants can also be used as an aqueous dispersion. The second powdered secondary component iii) can, in particular, additionally be selected from graphite powder, fly ash, silicon dioxide, quartz flour, basalt, plastic fibers, accelerators, viscosity regulators, polyurethanes, polyvinyl acetates, poly(ethylene-vinyl acetate) and poly(organo)siloxanes, which are described in more detail below. The graphite powder is used in the compositions according to the invention in particular in an amount in the range of 1 to 20 or 1 to 15, preferably in the range of 5 to 15 or 5 to 12 wt.%, particularly preferably in the range of 8 to 12 wt.%, very particularly preferably about 10 wt.%, based on the total weight of cement. Fly ash is the term used to describe dust-like combustion residues of coal dust rich in silica or lime, which are produced during the cleaning of flue gases from steam generators in coal-fired power plants.Certain fly ashes are suitable as concrete additives. They contain at least two-thirds glassy particles and consist essentially of reactive silicon dioxide (SiO2) and aluminum oxide (Al2O3), as well as small amounts of iron oxide (Fe2O3) and other oxides. The proportion of reactive calcium oxide (CaO) should generally be below 5 wt.%, and the proportion of reactive silicon dioxide (SiO2) must be at least 25 wt.%. Further details are regulated in DIN EN 450 "Fly ash for concrete." The fly ash is used in the inventive compositions in particular in an amount in the range of 1 to 10 wt.%, preferably in the range of 2 to 7 wt.%, particularly preferably in the range of 3 to 5 wt.%, based on the total weight of cement. Non-limiting examples of plastic fibers are polypropylene fibers.The plastic fibers, in particular polypropylene fibers, are used in the compositions according to the invention in an amount in the range from 0.01 to 5 wt.%, preferably in the range from 0.05 to 3 wt.%, particularly preferably in the range from 0.1 to 1 wt.%, most preferably about 0.3 wt.%, based on the total weight of the composition. In particular, polypropylene fibers with a length of 6, 9, 12, 16, 18, or 19 mm are used. The compressive load of the resulting product, in particular the aerated lightweight concrete, is thereby increased, as are the tensile strength and the modulus of elasticity. Compressive loads of 400 MPa, a tensile strength of 300 N per mm², and / or a modulus of elasticity of 4000 N per mm² are possible. 2 The graphite powder, fly ash, silica, quartz flour, basalt and plastic fibres are preferably mixed into the cement, while the accelerators, viscosity regulators, Polyurethanes, polyvinyl acetates, poly(ethylene-vinyl acetate)s and poly(organo)siloxanes are preferably added to the water. It is also possible to add the polyurethanes, polyvinyl acetates, poly(ethylene-vinyl acetate)s and / or poly(organo)siloxanes to the water used for foam production for the production of aerated lightweight concrete. In this case, they are preferably added to the water in an amount in the range of 0.5 to 10 wt.%, particularly preferably in an amount in the range of 1.0 to 5.0 wt.%, based on the weight of the water. Conventional hardening accelerators are used as accelerators, for example those commercially available from Mapei SPA, Italy, under the name DYNAMON HAA. Conventional viscosity modifiers are used as viscosity regulators, for example those commercially available from Mapei SPA, Italy, under the name VISCOSTAR 3K.Suitable poly(organo)siloxanes (so-called silicones) include, for example, the so-called SILRES® powders, which are commercially available from Wacker Chemie AG (Munich, Germany). A preferred poly(organo)siloxane is, for example, SILRES® Powder A, which is commercially available from Wacker Chemie AG. However, liquid poly(organo)siloxanes can also be used. Silane-based additives, such as those sold by the Chinese company Henan Botai Chemical Building Material Co., Ltd. under the brand name BOTAI HP-70, can also be used. These additives contribute to the hydrophobization of the concrete or porous lightweight concrete. The same effect can also be achieved with corresponding polyurethanes, polyvinyl acetates, and poly(ethylene-vinyl acetate)s known to those skilled in the art. The poly(organo)siloxane is used in the compositions according to the invention in particular in an amount preferably in the range of 0.001 to 2.0 wt.%, preferably in the range of 0.01 to 1.0 wt.%, particularly preferably in the range of 0.05 to 0.5 wt.%, very particularly preferably in the range of 0.2 to 0.4 wt.%, based on the total weight of the powdered components of the composition or based on the total weight of cement. The same preferred amounts also apply to the polyurethanes, polyvinyl acetates, and poly(ethylene-vinyl acetate)s. The poly(organo)siloxane is usually added directly to the water in the required amount, preferably in an amount in the range of 0.5 to 5 wt.%, particularly preferably in an amount in the range of 1.0 to 4 wt.-%, very particularly preferably in an amount in the range of 1.5 to 3.0 wt.%, based on the weight of the water, or as an aqueous 10% solution in order to ensure homogeneous mixing in the composition due to the small amount used. By adding at least one poly(organo)siloxane, an elastic product such as, for example, an elastic aerated lightweight concrete is obtained. The same effect can also be achieved with polyurethanes, polyvinyl acetates and / or poly(ethylene-vinyl acetate)s known to those skilled in the art for this purpose. In the preferred embodiments of the composition according to the invention for aerated lightweight concrete disclosed above, in which. The powdered main component i) is 52.5 R cement or 42.5 R cement or a mixture thereof, and the first powdered secondary component ii) is CSA cement or calcium aluminate cement or a mixture thereof, preferably graphite powder is added. The amount of graphite powder in this embodiment is advantageously in the range of 1 to 20 wt.%, preferably in the range of 5 to 15 wt.%, particularly preferably in the range of 8 to 12 wt.%, most preferably approximately 10 wt.%, based on the total amount of 52.5 R cement, 42.5 R cement or a mixture thereof. The composition for the production of concrete, 3D pressure mortar, flow screed and levelling compound can also contain the graphite powder, fly ash, silicon dioxide, quartz powder, basalt, plastic fibres, accelerator, viscosity regulator, polyurethane, polyvinyl acetate, poly(ethylene-vinyl acetate) and / or poly(organo)siloxane, preferably in the quantities stated above.The at least one liquid secondary component iv) is selected from retarders and plasticizers. The at least one liquid secondary component iv) can preferably be dosed accurately to within 2-3%. According to DIN EN 934-2, retarders are concrete admixtures, particularly for aerated lightweight concrete, that extend the time until the mixture begins to transition from the plastic to the solid state. Retarders are compounds that can bind calcium ions as chelates. Examples of retarders are phosphonic acid derivatives with hydroxy or amino groups, such as those listed on page 2, lines 40-49. DE 4038147n discloses hydroxycarboxylic acids and their salts, such as salicylic, citric, lactic, gluconic, tartaric, muconic, and glucoheptanoic acid; polycarboxylic acids and their salts, such as maleic, fumaric, itaconic, malonic, succinic, and phthalic acid, as well as polymaleic, polyfumaric, polyacrylic, and polymethacrylic acids, preferably with low molecular weight; antioxidants such as ascorbic and isoascorbic acid; polymers such as sulfonic acid-containing acrylic polymers and polyhydroxysilanes, preferably with low molecular weight; aldoses or ketoses, such as sugar and corn syrup, and lignosulfonates such as calcium lignosulfonate. Inorganic (phosphates, borates) or organic complexing agents (EDTA, NTA) and zeolites are also suitable. The compositions according to the invention use retarders that are liquid at temperatures between -3 and +50°C.Particularly preferred retarders are citric acid, tartaric acid, and acetic acid, as well as mixtures thereof, as well as retarders commercially available from Mapei SPA, Italy. Mapetard VZ / Mapetart D from Mapei SPA, Italy is very particularly preferred. Mapetard SD2000 and Mapetard D, both also from Mapei SPA, Italy, can also be used as retarders. The amount of retarder added depends on the temperature. Depending on the composition, retarder is preferably used in an amount of 0.05 to 0.55 wt.% at an outside temperature of 0°C on the construction site. Depending on the composition, it is particularly preferred to add either 0.1 or 0.5 wt.% retarder, based on the total weight of cement, to the composition at an outside temperature of 0°C. Preferably, 0.02 wt.% more retarder is added each time the temperature is increased by 1K, so that depending on the composition. Either 1.1 or 1.5 wt.% retarder can be added to the composition at 50°C. This means that the amount of retarder is preferably in the range of 0.1 to 1.5 wt.%, based on the total weight of cement. This means that the composition can be processed within approximately the same period of time, regardless of the outside temperature. Examples of plasticizers are plasticizers such as the products of the reaction of polycarbon polymers with monofunctional polyethers, as disclosed, for example, in WO 2011 / 076655 by Mapei SPA. Mapefluid R440 from Mapei SPA, Italy, is preferably used as the plasticizer. The amount of plasticizer depends on the wet density. In general, less plasticizer is added for higher wet densities. More plasticizer is added for compositions that have high flowability. Preferably, liquefier is used in an amount of 0.4 to 1.7 wt.-% at a wet density in the range of 100 to 400 kg / m. 3 , in an amount of 0.2 to 1.2 wt.% at a wet density in the range of 400 to 800 kg / m 3 , and in an amount of 0.2 to 0.9 wt.% at a wet density in the range of 800 to 1250 kg / m 3 added; particularly preferred is plasticizer in an amount of 0.45 to 1.6 wt.% at a wet density in the range of 100 to 400 kg / m 3 , in an amount of 0.25 to 1.1 wt.% at a wet density in the range of 400 to 800 kg / m 3 and in an amount of 0.25 to 0.8 wt.% at a wet density in the range of 800 to 1250 kg / m 3 added; particularly preferred is plasticizer in an amount of 0.5 to 1.5 wt.% at a wet density in the range of 100 to 400 kg / m 3 , in an amount of 0.3 to 1.0 wt.% at a wet density in the range of 400 to 800 kg / m 3and in an amount of 0.3 to 0.75 wt.% at a wet density in the range of 800 to 1250 kg / m 3added. In some compositions, the plasticizer also depends on the outside temperature at which the composition is processed. Here, as with the retarder, 0.02 wt.% more plasticizer is added for every 1 K increase in temperature, starting from a starting value that depends on the composition and its intended use. A special feature of the process for producing the composition described below is that the retarder and the plasticizer can be metered to an accuracy of 0.02 wt.%, with the deviation depending on the metering pump being only 2-3% of this value. Examples of liquid foam agents v) are organic surfactants, which are liquid particularly at a temperature in the range of -3 to 50°C. Such products are marketed, for example, by Mapei SPA (Italy) and Sika AG (Switzerland) under the trade names Mapeair LA / L and Sika® Lightcrete-400.The preferred foam agent is Mapeair LA / L from Mapei SPA, Italy. The amount of liquid foam agent used is in particular in the range of 10 to 50 g per 1 liter of water, preferably in the range of 20 to 40 g per 1 liter of water, particularly preferably in the range of 25 to 35 g per 1 liter of water, and most preferably in the range of 28 to 32 g per 1 liter of water. Here, too, the dosage can be adjusted to within 2-3%. The quantity of the individual components i) to vi) can be metered very precisely. For outdoor applications, it is possible to adapt the composition of the concrete, in particular the aerated lightweight concrete, the mortar, especially the 3D printing mortar, the flowing screed, and the filler to the ambient conditions by mixing the individual components with water available on site. Therefore, by determining the ambient moisture content, the water content and the dosage of the required individual components can be optimized accordingly. Depending on the outside and ambient temperature, the quantity of individual components is also metered in and thus adapted to the outside and ambient conditions. In the composition according to the invention, the weight ratio of water to cement is preferably in the range of 0.2:1 to 0.6:1.For concrete, especially for aerated lightweight concrete, the weight ratio of water to cement is preferably in the range of 0.2:1 to 0.4:1, while for flowing screed, 3D printing mortar, or filler, it is preferably in the range of 0.3:1 to 0.55:1. By individually dosing the individual components, it is possible to adjust various settings such as setting behavior, flow behavior, and density as desired by the customer. The features of the above-mentioned preferred embodiments, including the preferred amounts, can be combined with one another as desired in a composition and are encompassed by the present invention. Preferred embodiments of the composition according to the invention In a preferred embodiment of a composition according to the invention for producing concrete, in particular for producing aerated lightweight concrete, the powdered main component i) is 52.5 R cement and the first powdered secondary component ii) is CSA cement. The weight ratio of component i) to component ii) is preferably in the range from 4:1 to 1.3:1. The amount of retarder is preferably in the range from 0.1 to 1.5 wt.%, based on the total weight of cement. The plasticizer is preferably used in an amount of 0.5 to 1.5 wt.% at a wet density in the range from 100 to 400 kg / m 3 , in an amount of 0.3 to 1.0 wt.% at a wet density in the range of 400 to 800 kg / m 3 and in an amount of 0.3 to 0.75 wt.% at a wet density in the range of 800 to 1250 kg / m 3added. The amount of liquid foam agent is preferably in the range of 25 to 35 g per 1 liter of water, particularly preferably in the range of 28 to 32 g per 1 liter of water. If porous lightweight concrete cubes with a nominal edge length of 150 mm are produced from this preferred composition with different wet densities, they have the following properties: Table 0: Wet density Compressive strength Compressive strength Compressive strength Preferred [kg / m 3 ] strength after 7 days strength after 14 days strength after 28 days Compressive strength after 28 [N / mm 2 ] [N / mm 2 ] [N / mm 2 ] days [N / mm 2] 200 0.1 0.1 0.1 0.06-0.14 250 0.2 0.3 0.3 0.16-0.34 300 0.3 0.4 0.4 0.26-0.44 400 1.0 1.0 1.0 0.6-1.4 500 1.8 1.9 2.0 1.5-2.5 600 3.0 2.8 3.0 2.5-3.5 700 3.1 3.5 3.3 3.0-4.0 800 4.3 5.3 5.1 4.0-5.8 900 5.9 5.9 6.0 5.0-6.5 1000 7.1 7.0 7.5 6.6-8.0 The present invention is also directed to a process for producing the composition according to the invention, which comprises the following steps: a) introducing the at least one liquid secondary component iv) into water, preferably via a metering pump, and mixing this secondary component and water to form an aqueous mixture; b) optionally introducing the at least one liquid foaming agent v) into water and mixing with air to produce foam; c) introducing the further components i), ii) and iii) into a first mixer, preferably via individual, separate metering pumps, and mixing with the aqueous mixture produced in step a) to form a slurry;d) further mixing the slurry produced in step c) in a second mixer, optionally adding the foam produced in step c) to the composition; e) removing the composition from the second mixer;wherein the amounts of components i) to iv) are in particular individually adapted to the ambient temperatures. Preferably, steps a) to e) are carried out continuously, particularly preferably steps a) and b) are carried out continuously at the same time. However, it is also possible to carry out steps a) to e) batchwise. If the composition according to the invention is a composition for producing aerated lightweight concrete, step b) is carried out, and the further mixing in step d) takes place with the addition of the foam produced in step c). The process for producing the composition according to the invention for producing aerated lightweight concrete therefore comprises the following steps: a) introducing the at least one liquid secondary component iv) into water, preferably via a metering pump, and mixing this secondary component and water to form an aqueous mixture;b) introducing the at least one liquid foaming agent v) into water and mixing with air to produce foam; c) introducing the further components i), ii), and iii) into a first mixer, preferably via individual, separate metering pumps, and mixing with the aqueous mixture prepared in step a) to form a slurry; d) further mixing the slurry prepared in step c) in a second mixer with addition of the foam prepared in step c) to the composition;e) Removing the composition from the second mixer. The amounts of components i) to iv) are, in particular, individually adapted to the ambient temperatures. The process for producing the composition according to the invention for producing mortar, in particular 3D printing mortar, flowing screed, and leveling compound therefore comprises the following steps: a) Introducing the at least one liquid secondary component iv) into water, preferably via a metering pump, and mixing this secondary component and water to form an aqueous mixture; c) Introducing the further components i), ii), and iii) into a first mixer, preferably via individual, separate metering pumps, and mixing them with the aqueous mixture produced in step a) to form a slurry; d) Further mixing the slurry produced in step c) in a second mixer to form the composition;e) Removing the composition from the second mixer. Here, too, the quantities of components i) to iv) are individually adapted to the ambient temperatures.; The process for producing the composition according to the invention for the production of concrete comprises the following steps: A) Introducing the at least one liquid secondary component iv) into water, preferably via a metering pump, and mixing this secondary component and water to form an aqueous mixture; B) Introducing the further components i), ii), and iii) into a first mixer, preferably via individual, separate metering pumps, and mixing them with the aqueous mixture produced in step a) to form a slurry; C) Further mixing of the slurry produced in step c) in a second mixer; D) Removing the composition from the second mixer; the amounts of components i) to iv) being individually adjusted to the ambient temperatures. Steps b), c), and d) will now be explained in more detail: Schritt The foam is preferably produced from the at least one liquid foaming agent and water in a foam generator, in which the at least one liquid foaming agent and the water are mixed with the addition of air. In particular, the foam can also be produced in a device as described in NL-A 9302111. Step c): The introduction of components i), ii) and iii) into the first mixer, preferably into a continuous mixer, preferably takes place via a rotary valve into a pump hopper and further transport via a downstream conveyor screw. The rotary valve is advantageously equipped with two probes in order to be able to add the quantities of components i), ii), and iii) in a metered manner. One probe switches the rotary valve off when a certain upper fill level is reached, and another probe switches the rotary valve back on when a certain lower fill level is undershot. The mixing of components i), ii), and iii) with the aqueous mixture prepared in step a) to form a slurry is preferably carried out in a mortar mixing pump as described in WO 2004 / 080676 for the production of concrete slurry. The slurry produced in step c) is preferably a homogeneous, thixotropic mass. Schritt The slurry produced in step c) is preferably pumped via a hose to a second mixer, preferably a static mixer, wherein the hose preferably has a T-piece between the pump outlet and the second mixer, through which the foam produced in step b) is optionally mixed. Alternatively, the pump outlet can also have a foam injection. Particularly preferably, the further mixing of the slurry and the foam takes place not just in one, but in two static mixers connected in series. Instead of a static mixer, an electric mixer can also be used. The features of the above-mentioned preferred embodiments can be combined with one another as desired in a process and are encompassed by the present invention. If the composition according to the invention thus produced dries, it produces concrete, in particular aerated lightweight concrete, flowing screed, 3D printing mortar, and leveling compound. This means that the present invention also encompasses the use of the dried composition according to the invention as concrete, in particular as aerated lightweight concrete, as flowing screed, 3D printing mortar, or leveling compound. The invention will now be described in more detail using the following non-limiting examples. Examples In the following examples, MapeairLA / L is used as the foaming agent, Mapetard VZ as the retarder, MapefluidR440 as the plasticizer, DYNAMON HAA as the accelerator, and Viscostar 3K as the viscosity regulator. All five substances are commercially available from Mapei SPA, Italy. SILRES® Powder A, which is commercially available from Wacker Chemie AG, is used as the poly(organo)siloxane.In the following examples, a specific water-to-cement ratio is generally specified. To reduce the amount of water, attempts will be made to lower this ratio. This means that the following examples can generally be carried out just as well with lower water-to-cement ratios. Such variations and modifications are also encompassed by the present invention. of aerated lightweight concrete with 52.5 R and CSA cement Table 1 shows the composition of exemplary aerated lightweight concrete according to the present invention. The amount of plasticizer specified in Table 1, based on the total weight of cement, is added to the water; this amount is independent of temperature. The amount of retarder is temperature-dependent and is also added to the water in the amount specified in Table 1. This allows the aerated lightweight concrete to be processed within a period of 30 to 120 minutes. Foam is produced from water and foaming agent. The amount of water is shown in Table 1. The amount of foaming agent is 30 g per 1 l of water, i.e., 1.5 kg per 1 m 3Water. The cement used is a mixture of 52.5 R cement and CSA cement in the weight ratio specified in Table 1. The total amount of cement, depending on the wet density, is between 42 kg per 100 kg of composition at a wet density of 100 kg / m3 and 920 kg per 1250 kg of composition at a wet density of 1250 kg / m 3 , ie the total amount of cement in kg is in the range of 42% to 73.6% of the wet density in kg / m 3 Depending on the desired wet density, the above-mentioned total amount of cement is mixed with the water containing the plasticizer and retarder in the quantities specified in Table 1, preferably in a screw conveyor, to form a slurry. The weight ratio of water to cement is in the range of 0.20:1 to 0.33:1. This slurry is then mixed with the foam downstream of the screw conveyor to form the composition according to the invention, with the weight ratio of water to cement ideally being 0.35. Depending on the desired bulk density, more or less foam is added. The mixture is then homogenized in the static mixer downstream of the screw conveyor. Mixing preferably takes place in two static mixers connected in series. This results in the composition for producing aerated lightweight concrete with a wet density of 100–1250 kg / m³. 3Examples 4-6: Production of aerated lightweight concrete with 52.5 R and CSA cement. Table 2 contains further examples of aerated lightweight concrete according to the invention. Production is analogous to that described for Examples 1-3. In contrast to Examples 1-3, more plasticizer is used in the compositions according to Examples 4-6. The total cement content here, too, depending on the wet density, is in a range of 42 kg at a wet density of 100 kg / m³. 3 and 920 kg at a wet density of 1250 kg / m 3 , ie the total amount of cement in kg is in the range of 42 to 73.6% of the wet density in kg / m 3Examples 1A-6A: Production of aerated lightweight concrete with 52.5 R and CSA cement. Examples 1-6 are modified in such a way that the proportion of CSA cement is not based on the amount of 52.5 R cement, but rather on the clinker content of 87 wt.% it contains. This means that in Examples 1A-6A, more CSA cement is used than in Examples 1-6. of aerated lightweight concrete with 52.5 R and CSA cement. The production is carried out analogously to the production described for Examples 1-3. The corresponding parameters and conditions can be found in Table 3. The amount of water for the production of 1 m 3Foam in kg corresponds to the wet density in kg / m3 – 50 kg / m3. The weight ratio of retarder to cement [%] is 0.1-1.1 for a temperature of 0 to 50°C, whereby 0.1 weight% more retarder is added for a temperature difference of 5 K. The weight ratio of 52.5 R cement to CSA cement is 2.33. For example, 70 kg of 52.5 R cement and 30 kg of CSA cement are used. Examples 7A-30A: Production of aerated lightweight concrete with 52.5 R and calcium aluminate cement. The CSA cement in examples 7-30 is replaced with calcium aluminate cement from Hamitech AG or with Ciment Fondu® from LAFARGE ZEMENT. Examples 31-54: Production of aerated lightweight concrete with 52.5 R cement and CSA cement. The production is carried out analogously to the production described for Examples 1-3. The corresponding parameters and conditions can be found in Table 4. Here, however, the amount of retarder is adjusted to the nearest 1 K, iebased on a quantity of 0.1 wt.% retarder, based on the total weight of cement, at 0°C. Up to a temperature of 50°C, 0.02% more retarder was added. The amount of water required to produce 1 m 3Foam in kg corresponds to the wet density value in kg / m3 – 50 kg / m3. In contrast to examples 7-30, the amount of CSA cement here is related to the proportion of clinker (approx. 87 wt%) in the 52.5 R cement. This means that the weight ratio of clinker in 52.5 R cement to CSA cement is 2.33:1. Examples 31A-54A: Production of aerated lightweight concrete with 52.5 R cement, CSA cement and alumina cement. In comparison to Examples 31-54, calcium aluminate cement from Hamitech AG or Ciment Fondu® from LAFARGE ZEMENT was also used here, whereby the weight ratio of clinker in 52.5 R cement to CSA cement to calcium aluminate cement / Ciment Fondu® = 7.7:3.8:1. Examples 55-78: Production of aerated lightweight concrete with 52.5 R cement and CSA cement without plasticizer. The production is analogous to that described for Examples 1-3. The corresponding parameters and conditions can be found in Table 5.In contrast to Examples 7-30 and 31-54, the following aerated lightweight concrete Examples 55-78 do not contain a plasticizer. Furthermore, more water is used for foam production than in Examples 7-54. namely the amount of water in kg for the production of 1 m 3 Foam the value of the wet density in kg / m 3 . Just as in Examples 31-54 (Table 4), the amount of retarder is adjusted to the nearest 1 K, but more retarder is used. Starting with a retarder amount of 0.5 wt.%, based on the total weight of cement, 0.02 wt.% more retarder is added at a temperature of 0°C up to 50°C. The weight ratio of 52.5 R cement to CSA cement is 2.33 : of aerated lightweight concrete with 52.5 R cement, CSA cement and alumina cement without In examples 55-78, the CSA cement was partially replaced by alumina cement; the weight ratio of 52.5 R cement to CSA cement to alumina cement is 7.7 : 3.8 : 1. Aerated lightweight concrete with 52.5 R cement and In contrast to Examples 55-78, the amount of CSA cement here is based on the proportion of clinker (87 wt%) in the 52.5 R cement. This means that the weight ratio of clinker in the 52.5 R cement to CSA cement is 2.33:1. of aerated lightweight concrete with 52.5 R cement, CSA cement and alumina cement without In contrast to Examples 55A-78A, here the amount of CSA and alumina cement is related to the proportion of clinker (87 wt%) in the 52.5 R cement. This means that the weight ratio of clinker in the 52.5 R cement to CSA cement to alumina cement is 7.7 : 3.8 : 1. Examples 93-98: Production of refractory aerated lightweight concrete Instead of a mixture of 52.5 R cement and CSA cement, a mixture of 52.5 R cement, CSA cement and a calcium aluminate clinker such as Ciment Fondu® in a weight ratio of 6.66 : 1 : 1 is used. Further conditions can be found in Tables 6 and 7. Otherwise, production is carried out as described in Examples 1-3. The amount of foaming agent is 30 g per 1 l of water. The weight ratio of water to the total amount of cement in the composition, ie the mixture of cement, plasticizer, retarder, water, and foam, after mixing, is in the range of 0.20 to 0.35. The amount of water for the production of 1 m 3Foam in kg corresponds in Example 94 to the value of the wet density in kg / m 3 and in Examples 93 and 95-98, the wet density value in kg / m3 is 50 kg / m3. Examples 99-104: Production of aerated lightweight concrete that can be processed at outside temperatures down to -3°C. In order to be able to process the composition even at lower ambient temperatures, part of the CSA cement is replaced with high-alumina cement. Production is analogous to the production of the inventive compositions according to Examples 1-3. Further details can be found in Tables 8 and 9. With a wet density above 400 kg / m3, processing can even take place at an ambient temperature below 0°C, preferably at -3°C. The amount of water for the production of 1 m 3Foam in kg corresponds to the wet density in kg / m3 – 50 kg / m3. The amount of foaming agent is 30 g per 1 l of water. Example 1*: Measurement of the compressive strength of aerated lightweight concrete according to the invention. Cubes with a nominal edge length of 150 mm are produced from compositions prepared according to Example 1 for the production of aerated lightweight concrete in accordance with the standard SN EN 12390-3. These are stored either in a humid room at 20°C ± 2°C and a relative humidity ≥ 95% or covered with plastic film at 20°C until measurement. The compressive strength is determined after 7, 14, and 28 days. The results can be found in Tables I and II below. The values ​​given are the mean values ​​of three measurements. Table IB eispiel Nassdichte Compressive strength- Compressive strength- Compressive strength- [kg / m 3 ] strength after 7 strength after 14 strength after 28 days days days [N / mm 2 ] [N / mm 2 ] [N / mm 2] 1200 0.1 0.1 0.11 250 0.2 0.3 0.31 300 0.3 0.4 0.41 400 1.0 1.0 1.01 500 1.8 1.9 2.01 600 3.0 2.8 3.01 700 3.1 3.5 3.31 800 4.3 5.3 5.11 900 5.9 5.9 6.01 1000 7.1 7.0 7.5Examples 105-111: Production of 3D printed mortarThe examples are summarized in Table 10.3D printed mortar contains neither a plasticizer nor a foaming agent. The retarder is added to 281 liters of water in the amount specified in Table 10. The dosage is temperature-dependent. This allows the 3D printing mortar to be processed within a period of 1 to 30 minutes, depending on the print length. Sand and cement are mixed in the weight ratio specified in Table 10. Both fire-dried quartz sand and crushed sand with a grain size of 0 to 1 mm can be used as sand. A mixture of 52.5 R cement and CSA cement (Examples 105-107 and 110-111) or a mixture of 42.5 R cement and CSA cement (Examples 108-109) is used as cement in the weight ratio specified in Table 10. In Examples 110 and 111, half or all of the CSA cement has been replaced with high-alumina cement, respectively. In Examples 106 and 107, additional powdered glass fiber or, in Examples 108 and 109, additionally iron oxide powder and / or powdered colorant, each in the amount specified in Table 10, is added to the sand-cement mixture, and this mixture of the powdered components is then mixed with water, the weight ratio of water to cement being in the range of 0.1 to 0.50 to 1, ieFor every 28-30 kg of cement, 9.8 to 15.75 liters of water are mixed. The aqueous mixture containing the retarder is then added to the aqueous sand-cement mixture, which may also contain glass fiber (Examples 106, 107) or iron oxide powder and / or colorant (Examples 108, 109). Depending on the iron oxide used, either a white 3D printing mortar (Example 108) or a black 3D printing mortar (Example 109) is obtained. Mixing produces the 3D printing mortar mass, whose wet density, depending on the composition, ranges from 1800 to 2200 kg / m³. 3 The mixing of the components can be accelerated by using preheated water, particularly water preheated to a temperature in the range of 6 to 50°C. The shrinkage reduction during curing is 1% by volume. of flowing screed. The examples are summarized in Table 11. Flowing screed differs essentially from 3D printing mortar in that it contains a plasticizer in the mix. 1% by weight of plasticizer, based on the total weight of cement, is added to the water, as is retarder separately. The amount of retarder depends on the temperature: at 0°C, 0.1% by weight of retarder, based on the total weight of cement, is added to the water. With a temperature increase of 5 K, 0.1% by weight more retarder is added, so that at a temperature of 50°C, 1.1% by weight of retarder, based on the total weight of cement, is added to the water. This allows the flow screed to be applied within a period of 15 to 100 minutes, or 15 to 50 minutes. 73 kg of sand are mixed with 27 kg of cement, so that the weight ratio of sand to cement is 2.70:1.It is also possible to use mixtures with a sand to cement weight ratio in the range of 4:1 to 2:1. Both fire-dried quartz sand and crushed sand with a grain size of 0.1 to 0.5 mm, 0.5 to 1.25 mm, and 1.25 to 4 mm can be used as the sand. A mixture of 52.5 R cement and CSA cement (Examples 112, 113, 114, 116) or a mixture of 42.5 R cement and CSA cement (Example 115) is used as the cement, with the weight ratio of 52.5 R cement or 42.5 R cement to CSA cement being 2.33 to 1. Alternatively, 32.5 R cement could also be used. In Examples 113 and 114, additional powdered glass fiber, or in Examples 115 and 116, additional iron oxide powder and / or powdered colorant, are added to the sand-cement mixture in the amount specified in Table 11. This mixture of powdered components is then mixed with water, with the weight ratio of water to cement being in the range of 0.4 to 0.55 to 1, i.e., 16.8 to 25.2 liters of water are mixed for every 40 kg of total cement. Depending on the iron oxide used, either a white flowing screed (Example 115) or a black flowing screed (Example 116) is obtained. The aqueous mixture containing the retarder and the plasticizer is then added to the aqueous sand-cement mixture, which optionally additionally contains glass fiber (Examples 113, 114) or iron oxide powder and / or colorant (Examples 115, 116), to obtain the flow screed, the wet density of which is 2000-2200 kg / m 3The shrinkage reduction of the flowing screed during curing is 1% by volume. The flowing screed can be installed in thicknesses of 10-100 mm. From 20 mm, it is installed on a separating layer, and from 30 mm, it is installed floating. The examples are summarized in Table 12. 2 wt.% plasticizer, based on the total weight of cement, is added to water. The amount of retarder depends on the temperature: 0.1 wt.% retarder, based on the total weight of cement, is added to water at 0°C. For a temperature increase of 5 K, 0.1 wt.% more retarder is added, so that at a temperature of 50°C, 1.1 wt.% retarder, based on based on the total weight of cement, to water. This allows the filler to be processed in a period of up to 30 minutes. 60 kg of sand are mixed with 40 kg of cement, so that the weight ratio of sand to cement is 1.5:1. Both fire-dried quartz sand and crushed sand with a grain size of 0 to 0.5 mm can be used as the sand. The cement used is a mixture of 52.5 R cement and CSA cement (Examples 117, 118, 119) or a mixture of 42.5 R cement and CSA cement (Examples 120, 121, 122), whereby the weight ratio of 52.5 R cement or 42.5 R cement to CSA cement is 2.33:1. In Examples 118 and 119, an additional 0.5 or 1 wt.% of powdered glass fiber, and in Examples 120, 121 and 122, an additional 5 wt.% or 1 wt.% or 1 wt.% of iron oxide powder and / or powdered colorant are added to the sand-cement mixture.Depending on the iron oxide used, either a white filler (Example 120) or a black filler (Example 121) is obtained. The powdered components are preferably mixed in advance in the factory. This mixture of powdered components is then mixed with water, with the weight ratio of water to cement being in the range of 0.35 to 0.45 to 1, i.e., 14.0 to 18.2 l of water are mixed for every 40 kg of total cement. The aqueous mixture containing the retarder and the plasticizer is then added to the aqueous sand-cement mixture, which may also contain glass fiber (Examples 118, 119) or iron oxide powder and / or colorant. (Examples 120, 121, 122). This produces a filler with a wet density of 1900-2000 kg / m 3 The shrinkage reduction of the filler during curing is 1% by volume. of aerated lightweight concrete, fly ash, gra- or poly(organo)siloxane. The composition for producing the porous lightweight concrete can be used with a wet density of 100 kg / m 3 up to 1200 or 1250 kg / m 3The main component in powder form is 52.5 R cement, the secondary components in powder form are CSA cement and calcium aluminate cement (= high alumina cement), the other secondary components are fly ash, graphite powder and polyvinyl acetate. The graphite powder provides an electromagnetic shielding effect for building elements made from it. The fly ash fills the air pockets in the concrete better and thus ensures a higher degree of compaction. The polyvinyl acetate increases the plastic properties. Production is as follows: The amount of plasticizer specified in Table 13, based on the total weight of cement, is added to water. The amount of retarder, if present, is also added to water in the amount specified in Table 1. This enables the aerated lightweight concrete to be processed within a period of 30 to 120 minutes. In addition, the polyvinyl acetate is added as 2 wt.-% aqueous solution is added to the cement. Foam is produced from water and foaming agent. The amount of water required to produce 1 m 3 Foam in kg corresponds to the wet density in kg / m3 – 52.5 kg / m3. The amount of foam agent is 30 g per 1 l of water, i.e. 1.5 kg per 1 m 3 Water. The cement used is a mixture of 52.5 R cement, CSA cement, and calcium aluminate cement in the weight ratio specified in Table 1. The total amount of cement, depending on the wet density, ranges from 42 kg per 100 kg of composition at a wet density of 100 kg / m3 to 937.5 kg per 1250 kg of composition at a wet density of 1250 kg / m3. 3 , ie the total amount of cement in kg is in the range of 42% to 75% of the wet density in kg / m 3In addition, fly ash and graphite powder are added to the cement in the specified quantities. To avoid the risk of possible demixing of the small amount of polyvinyl acetate in the cement mixture, the polyvinyl acetate is added to the water and mixed with a high-performance mixer. Preferably, a 10% aqueous solution of the polyvinyl acetate is prepared beforehand to allow for even more precise dosing into the water. Depending on the desired wet density, the above-mentioned total amount of cement, including fly ash and graphite powder, is mixed with the water containing the plasticizer, retarder, and polyvinyl acetate in the quantities specified in Table 1, preferably in a screw conveyor, to form a slurry. The weight ratio of water to cement is in the range of 0.20:1 to 0.33:1.This slurry is then mixed with the foam after the screw conveyor to form the composition according to the invention, with the weight ratio of water to cement ideally being 0.35. Depending on the desired bulk density, more or less foam is added. The mixture is then homogenized in the static mixer downstream of the screw conveyor. Mixing is preferably carried out in two static mixers connected in series. This produces the composition for producing aerated lightweight concrete with a wet density of 100-1200 kg / m³. 3 or 100-1250 kg / m 3 Further details such as the weight ratios of the components can be found in Table 13. For a wet density above 400 kg / m 3Processing can even be carried out at an ambient temperature below 0°C, preferably at -3°C. Examples 129-134: Production of aerated lightweight concrete containing graphite powder. Production is analogous to Examples 123-128, except that in Examples 129-134 the composition contains neither polyvinyl acetate nor fly ash. Foam is produced from water and foaming agent. The amount of water required to produce 1 m 3 Foam in kg corresponds to the wet density in kg / m3 – 50 kg / m3 for examples 129 and 131-134. In example 130, the amount of water required to produce 1 m3 of foam in kg corresponds to the wet density in kg / m3. The amount of foaming agent is 30 g per 1 l of water, i.e., 1.5 kg per 1 m 3 Water. Further details such as the type and quantities of the components can be found in Table 14. Examples 135-137: of aerated lightweight concrete, the The preparation is analogous to Examples 129-134. However, in Examples 135-137, the amount of retarder is adjusted very precisely to the outside temperature. Foam is produced from water and foam concentrate. The amount of water required to produce 1 m 3 Foam in kg corresponds to the wet density value in kg / m3 – 50 kg / m3 in examples 135 and 136, and it corresponds to the wet density value in kg / m 3 in Example 137. The amount of foaming agent is 30 g per 1 l of water, ie 1.5 kg per 1 m 3 Water. Further details such as the type and quantities of the components can be found in Table 15. of aerated lightweight concrete, the loxane and possibly silicon dioxide. The preparation is analogous to Examples 123-128, except that in Examples 138-140 the composition contains silicon dioxide instead of fly ash. Foam is produced from water and foaming agent. The amount of water required to produce 1 m 3 Foam in kg corresponds to the wet density in kg / m3 – 50 kg / m3. The amount of foam agent is 30 g per 1 l of water, i.e. 1.5 kg per 1 m 3 Water. Further details such as the type and quantities of the components can be found in Tables 16 and 17. of aerated lightweight concrete, which is a xan and SiO2. Details regarding the type and amount of the components can be found in Table 18. The preparation is analogous to Examples 123-128. The amount of water for the production of 1 m 3Foam in kg corresponds to the wet density in kg / m3 – 50 kg / m3. The amount of foam agent is 30 g per 1 l of water, i.e. 1.5 kg per 1 m 3 Water. of aerated lightweight concrete, which is a Details regarding the type and quantity of components can be found in Table 19. The preparation is carried out analogously to Examples 123-128. In Example 145, the amount of water in kg for the production of 1 m3 of foam corresponds to the wet density in kg / m3 – 50 kg / m3; in Example 146, it corresponds to the wet density in kg / m 3 . The amount of foam agent is 30 g per 1 l of water, ie 1.5 kg per 1 m 3 Water. 3D-printed mortar. Details regarding the type and quantity of components can be found in Tables 20-22. The preparation of the compositions according to Examples 147-153 is carried out analogously to the preparation of the compositions according to Examples 105-111. Here, the silicon dioxide SiO2 is mixed into the sand-cement mixture, and the poly(organo)siloxane is added to the water. Preferably, a 10% aqueous solution of the poly(organo)siloxane is prepared beforehand to allow for even more precise dosing into the water. Examples 154-158: Preparation of a composition for the production of 3D printing mortar using pre-tempered water. The details regarding the type and quantity of the components can be found in Table 23. The preparation of the compositions according to Examples 154-158 is analogous to the preparation of the compositions according to Examples 105-111. In this case, the shrinkage reducer is usually added to the water. Examples 159-160: Production of concrete: Table 25. The details regarding the type and quantity of the components can be found in Table 24. The plasticizer, the accelerator, the viscosity regulator and, if present, the poly(organo)siloxane are introduced independently of one another into water, preferably via a dosing pump, and mixed with water to form an aqueous mixture. The sand, the cement, the silicon dioxide orThe quartz powder / basalt and the polypropylene fibers are introduced into a first mixer, preferably via individual, separate metering pumps, and mixed with the aqueous mixture containing the plasticizer, accelerator, viscosity regulator, and, if present, the poly(organo)siloxane to form a slurry. The slurry is then further mixed in a second mixer and discharged from there. Example 161: Production of Concrete. Details regarding the type and quantity of the components can be found in Table 25. The preparation of the composition according to Example 161 is carried out analogously to the preparation of the compositions according to Examples 159-160. Examples 162-165: Preparation of high-performance concrete. The details regarding the type and quantity of the components can be found in Table 26. The preparation of the compositions according to Examples 162-165 is carried out analogously to the preparation of the compositions according to Examples 159-160. Example 166: Preparation of the composition for an elastic porous lightweight concrete. The preparation is carried out analogously to Examples 141-143. Foam is produced from water and foaming agent. The amount of water for the production of 1 m 3Foam in kg corresponds to the wet density in kg / m3 – 50 kg / m3. The amount of foaming agent is 30 g per 1 l of water, i.e., 1.5 kg per 1 m3 of water. Additionally, 2 wt.% poly(ethylene-vinyl acetate), based on the total weight of the foam, is added to the foam. The resulting composition is very elastic. Further details such as the type and quantities of the components can be found in Table 27. Examples 1-3: Production of aerated lightweight concrete: Table 1 Example Wet Amount of Weight Amount density water for weight ratio of Composition [kg / m 3 ] the ratio of liquid po- creation foam cer- [Gen- en- manufac- ture ment ment [%] weight [kg 52.5 R ratio and water to CSA per 1 m 3 Cement total meter of foam] weight of cement in %] 1 ― 100- Value of 2.33 0.1-1.1 for 0.5 for 1250 wet a temperature a density in wet k g / m3 – 50from 0 to density kg / m 3 50°C where- of 100- at for 799 a temperature- kg / m 3 ; temperature difference of 0.3 for a 5 K wet density of 0.1 weight % of 800- more than 1250 kg / m 3 2 Static density value for a wet solid at a temperature of 1250°C (wet) from 0 to 50 kg / m3 (100°F) 3 50°C where for up to 3% a temperature difference of 5 K each 0.1% by weight more retarder be added 3 to the power of 100- value of the 2.33 0.1-1.1 for 1.5 for flowable density in 1250 wet temperature wet k g / m3 – 50 from 0 to density kg / m 3 50°C where- of 100- at for 399 a temperature- kg / m 3 ; temperature difference of 1.0 for a 5 K wet retarder 0.1 weight % of 400- more densities 799 kg / m 3 ; added 0.75 for a wet density of 800-1200 kg / m 3Examples 4-6: Production of aerated lightweight concrete: Table 2 Example of aerated lightweight concrete: Wet density Amount of weight Amount of density water for weight ratio of liquefiable [kg / m 3 ] the ratio of retarder [weight] to foam [%] ratio to the production [kg 52.5 R total and water to CSA amount of para- per 1 m 3 Cement Cement in meter foam] %] 4 100- Value of the 3.85 0.1-1.1 for 0.5-1.5 for 1200 wet density in temperature temperature k g / m3 – 50 from 0 to from 0 to kg / m 3 50°C where 50°C where for for a tem- a tem- Temperature difference of 5 K each because 0.1% more retarder is added because 0.1% more retarder is added by weight. 100% value of the wet density at 2.33 kJ / 1.5 for 1200 kcal. g / m3 – 50 from 0 to 100 kg / m 3 50°C where 399 at for kg / m3 ; a temperature difference of 1.0 for a wet density of 5 K each of 400- 0.1 749 weight kg / m 3 ; 0.75% more retarder for a wet density of 750-1200 kg / m 3 100- Value of the 2.33 0.5-1.5 for― 1200 wet a temperature density in k g / m3 – 50 from 0 to kg / m 3 50°C, where for a temperature difference of 5 K, 0.1% by weight more delay Examples 7-30: Production of aerated lightweight concrete: Table 3 Example / Wet Total weight Amount of cement in kg ratio of liquid [kg / m 3 ] [% of the amount of water to water in kg per cement to the total weight ratio and parameters 1 m 3Foam] amount of cement in %] 7100 84 0.2 0.58 150 82.5 0.2 0.59 200 83.3 0.2 0.510 250 83.1 0.2 0.511 300 83.4 0.2 0.512 350 83.4 0.2 0.513 400 83.4 0.2 0.514 450 83.0 0.2 0.515 500 81.7 0.22 0.516 550 80.9 0.23 0.517 600 80.2 0.235 0.518 650 79.6 0.245 0.519 700 79.6 0.252 0.520 750 79.1 0.259 0.521 800 78.6 0.265 0.322 850 78.1 0.27 0.323 900 77.7 0.275 0.324 950 77.4 0.275 0.325 1000 77.2 0.282 0.326 1050 77.1 0.285 0.327 1100 76.8 0.287 0.328 1150 76.8 0.291 0.329 1200 76.6 0.293 0.330 1250 76.6 0.295 0.3 Examples 31-54, 31A-54A and 31B-54B: Production of aerated lightweight concrete: Table 4 Example / Wet Total amount of cement Amount of plasticizer density component in kg [% of weight and pa- [kg / m 3 ] Amount of water in relation to the total parameters kg per 1 m 3Foam] amount of cement in %] 31 100 82 1.532 150 82.5 1.533 200 82 1.534 250 81.9 1.535 300 82.2 1.536 350 81.9 1.537 400 82.3 1.038 450 82.4 1.039 500 81.1 1.040 550 80.4 1.041 600 79.7 1.042 650 79.3 1.043 700 79.6 1.044 750 78.5 1.045 800 78.2 0.7546 850 77.9 0.7547 900 77,7 0.7548 950 77,7 0.7549 1000 77,5 0.7550 1050 77,0 0.7551 1100 76,8 0.7552 1150 76,7 0.7553 1200 76,5 0.7554 1250 76,4 0.75 Examples 55-78: Production of aerated lightweight concrete: Table 5 Components and wet density Total amount of cement in kg Parameter / Example [kg / m 3 ] [% of wet density in kg / m 3] 55 100 42,056 150 55,057 200 62,058 250 66,159 300 69,060 350 71,061 400 72,262 450 73,563 500 73,364 550 73,365 600 73,766 650 73,667 700 73,668 750 73,669 800 73,670 850 73,671 900 73,672 950 73,873 1000 73,674 1050 73,675 1100 73,676 1150 73.677 1200 73.578 1250 73.6Examples 93-95: Production of aerated lightweight concrete: Table 6 Examples Properties Wet Weight ratio Amount of retarder density liquid [Ge- Com- [kg / m 3 ] total amount of cerium [%] to the total amount of cerium [%] Weight ratio of components and parameters ment in %] 93 Processable down to -5°C 100- 0.1-1.1 for a temperature of 0 1250 0.5 to 50°C, whereby for refractory a temperature difference of 5 K 0.1% by weight more retarder is added in each case. 100- 0.5-1.5 for a solid at a temperature of 0 to 50°C, with a temperature difference of up to 3% for gradients of 5 K. 0.1% by weight more retarder is added in each case. High 100- 0.1-1.1 for a wet flow density of 100- 1.5 for a wet flow density of 1250 from 0 to 50°C, with a temperature difference of 399 kg / m 3 ; 1.0 for a temperature difference of 5 K from 400-849 kg / m 3 ; 0.75% more retarder is added for a wet density of 850-1250 kg / m 3 Examples 96-98: Production of aerated lightweight concrete: Table 7 Example of proper- Wet Total weight ratio Quantity / density quantity weight ratio of Com- [kg / m 3] of cement, liquid po- ment in 52.5 R to retarder [kg CSA cer- ment to weight ment to ment [%] ratio to the para- melting and alumina amount of cement in %] 96 Higher 100- 76.7-6.66 : 1 : 1 0.1-1.1 for 0.5 stabilization of the temperature 1200 84.0% a tem- perature of 0 to mis- ture of water for 50°C washing at a temperature difference of 5 K for foam, 0.1 weight% more retarder is added 97 flowable 100- 76.7-6.66 : 1 : 1 0.1-1.1 for 1.5 for 1250 84.0% a wet density of water at a temperature of 0 to 100°C for 399 kg / m 3 ; foam a 1.0 for in kg a Temperature, wet, temperature difference of 400- of 5 K 749 kg / m each 3 ; 0.1 weight-% for a more wet retarder density of 750-1250 kg / m 3Despite a temperature difference of 3- 100-6.66 : 1 : 1 0.5-1.5 for 1250 a 5% increase in retarder can be processed at 50°C where 0.1% by weight more retarder is added for a temperature difference of 5 K. Examples 99-101: Production of aerated lightweight concrete at outside temperatures down to -3°C: Table 8 Example: Wet Density Weight Weight Quantity ratio ratio of composition [kg / m 3 ] ratio of cement to liquid water 52.5 R to cement to the [general cement to the CSA cement to the total weight ratio and total alumina to the cement to the cement to the cement in %] 99 to - 100-0.28 7.7 : 2 : 1 0.5 at a wet processing density of 100 – 0.5 at a wet processing density of 100 – 5°C bar; 349 349 kg / m 3 , 0.4 kg / m 3, solid at a wet density of 0.4 at a wet density of 350- 350- 849 849 kg / m 3 , 0.3 kg / m 3 , at a wet density of 0.3 at a wet density of 850- 850- 1250 1250 kg / m 3 kg / m 3 100 100-0.28 7.7 : 2 : 1 1.5 for a wet 1250 density gradient of 100 kg / m 3 ; 1.0 up to a 3% wet density of 400- 899 kg / m 3 ; 0.75 for a wet density of 900- 1250 kg / m 3 High 100-0.28 7.7 : 2 : 1 0.1-1.1 for 1.5 for flowable 1250 a temperature of 0 to 50°C wet density where 100- at 449 a temperature of 449 kg / m 3 ; temperature difference of 1.0 for a wet density of 5 K each 0.1 weight of 450-% more 849 retardation kg / m 3 ; 0.75 for a wet density of 850-1250 kg / m 3 Examples 112-116: Production of flowing screed: Table 11 Example / Properties [kg] per 100 kg of sand-cement mixture Amount of glass fiber Amount of iron oxide [% of the cement in kg] 1 12 ― ― ― 113 ― 0.35 ―114 ― 0.7 ―115 grind- ― 1bar 116 grind- ― 1bar Examples 102-104: Production of porous lightweight concrete at outside temperatures down to -3°C: Table 9 Example Wet Total Weight ratio Amount of play / density amount weight ratio retardant Com- [kg / m 3 ] of cement [Weight ratio in cement [%] ratio to the total and wet cement density in kg / m 52.5 R to the amount of cement in %] CSA cement in % 3 ] ment 102 100-42 7.7 : 3.8 :0.1-1.1 for 0.5 at a temperature of 1200 1 from 0°C to 50°C where 0.1 weight % more delay for a temperature difference of 5 K gerer be added 103 100-42 7.7 : 3.8 : 0.1-1.1 for temperature 1250 1 a temperature independent: 1.5 for a wet density at 100-399 for a temperature of 100-399 kg / m 3 ; 1.0 for a wet density difference of 5 K each 0.1 weight % 400-749 more delay kg / m 3 ; 0.75 of the added density for a wet density of 750-1250 kg / m 3 104 100- 7.7 : 3.8 : 0.5-1.5 for ― 1250 1 a temperature of 0 to 50°C, with 0.1 weight% more retarder being added for a temperature difference of 5 K. Examples 105-111: Production of 3D printed mortar: Table 10 Example Wet Quantity Quantity Quantity density of weight weight weight of of egg and [kg / m 3] Sand re- re- Glass re- Properties with the ratio ratio fiber oxide create grain Sand Ce- retardant [kg] powder size / cement per [% of the com- 0-1 ment 52.5 R to cement 100 kg quantity po- mm [kg / kg] to CSA ment 3D at 42.5 [kg Ce- [%] ment and relative to pressure R Ze- Para- gen mortar ment meter per 100 mass in kg] kg 3D pressure mortar mass] 105 1900-72 2.57 : 1 2.33 : 1 At ― ―2100 temperatures up to 24°C 0; at 25°C 0.01; at 30°C 0.02; at 35°C 0.8; at 40°C 0.9; at 45°C 1; at 50°C 1.1.106 2000- 70 2.3 : 1 2.33 : 1 0.1-1.1 0.35 ―2200 for a temperature of 0 to 50°C, where for a temperature difference of 5 K each 0.1% by weight more retarder is added 1800-70 2.3 : 1 2.33 : 1 0.1-1.1 0.7 -2200 for a temperature of 0 to 50°C, whereby for a temperature difference of 5 K, 0.1% by weight more retarder is added 2000-70 2.3 : 1 2.33 : 10.1-1.1 ― 12200 (instead of 52.5 R temperature ment from 0 to 42.5 R 50°C cement, whereby ment for a temperature difference of 5 K, 0.1% more retarder by weight is added in each case. 109 2000- 70 2.3 : 1 2.33 : 10.1-1.1 ― 1 2200 (instead of using 52.5 R for a temperature difference of 0 to 42.5 R 50°C, 0.1% more retarder by weight is added each time) cement is used for a temperature difference of 5 K 110 1900-72 2.57 : 1 2.33.0.1-1.2 ― ― At - 2100 where for a 5°C the temperature half Processing of - processing CSA- 5°C to 50°C bar. Cement, whereby for a toner temperature difference of 5 K, 0.1% more by weight of retarder is added. 111 1900-72 2.57:1 2.33.0 at - ― ―At - 2100 where 10°C, 10°C the 0.05 processing CSA at - 5°C; bar. tem- ture is replaced by 0.1-1.1 for a toner temperature difference of 0 to 50°C where for a temperature difference of 5 K 0.1 weight % more Retarders are added Examples 117-122: Production of filler: Table 12 Example / Thickness to which the amount of iron oxide powder or filler components and colourant can be processed per 100 kg [% of parameters] sand and cement in kg] 42.5 R 117 1-50 ― ―118 2-60 0.5 ―119 2-70 1 ―120 5-50 ― 5121 5-50 ― 1122 5-50 ― 1Examples 123-128: Production of aerated lightweight concrete containing fly ash, graphite powder and, if necessary,Poly(organo)siloxane: Table 13 Example of a property of the wet cement, weight by weight, of the poly(organo)siloxane, weight by weight, of the water, or of the poly(organo)siloxane, retardant amount of water, [%]. de- CSA Ce- ment, ment cement alumina in %] to gra- ment- phite pul- cement, v er [kg : Fly ash kg : kg : kg] and graphite powder Electro- 100-0.263 7.692 : 2Polyvi- ― 0.5 bei ro- 1250: 1.154: nyl acetate 20°C mag- kg / m 3 1.154 : 1 : 0.32 net / 42 kg (at a wt.% at a wet density of 100 kg / m 3 ) kg / m 3) up to 100 up to 8.696 0.41 kg / m 3 : 2 : Wt.% (42%) – 1.304 : (at a 937.5 1.304 : 1 wet kg at (at a density of 1250 wet kg / m 3 ) density density of 1250 1250 kg / m 3 kg / m 3 ) (75%) Elect- 100- 0.244 8.7: 2: Polyvi- ― 0.5 bei ro- 1250 (at a- 1.3: 1.3: nyl acetate 20°C mag- kg / m 3 ner 1 : 0.28 net / 42 kg wet wt.% density (at a wet density of 100 kg / m 3 ) from 100 and from to kg / m 3 ) until it stood at 100 0.263 0.41 kg / m 3 (at a wt.% at a (42%) a (at a to Wet density 937.5 kg at a density of up to 1250 3% wet density 1250 kg / m 3 ) density kg / m 3 ) of 1250 kg / m 3 (75%) Elekt- 100- 0.244 8.7: 2: Polyvi-0.5 at 0.5 beiro- 1250 (at a- 1.3: 1.3: nyl acetate 20°C 20°C mag- kg / m 3ner 1 : 0.32 net / 42 kg wet wt.% at a density (at a density of 100 kg / m 3 ) from 100 and from to kg / m 3 ) up to 100 0.263 0.41 flow kg / m 3 (at a weight % (42%) – 937.5 kg wet density at a wet density of 1250 kg / m² 3 ) density kg / m 3 ) of 1250 kg / m 3 (75%) Elect- 100- 0.244 10: 2.3: Poly(or- ― 0,1-1,1 ro- 1200 (at a- 1.2747 : gano)silo- for mag- kg / m 3 ner 1.2747 : xan: 0.32 a new / 42 kg wet 1 wt.% temperature at a pera- density (at a pera- ner of wet ture of shielding wet density 0 to 100 kg / m 3 ) from 100 50°C from to 0.35 kg / m 3 ) to where 100 (at a 0.33 for kg / m 3 % by weight (42%) – wet density (at a temperature of 882.0 kg at a wet-pera- 1250 density turdif- wet- kg / m 3 ) of 1200 reference density kg / m 3) of 5 of K each 1250 kg / m 3 0.1 (73.5%) wt. % more condenser added Electro- 100- 0.35 10: 2.3 : Poly(or- ― 0,1-1,1 ro- 1250 (con- 1.5 : 1.5 : gano) silo- for mag- kg / m 3 stant 1 xan: 0.29 a net / 42 kg at a wt.% temperature (at a permanent wet density of 0 to 50°C and of 100 kg / m 3 ) to where to the power of 100 100 0.33 for flow- kg / m 3 kg / m 3 Wt.% a capable (42%) – up to (at a temperature 918.75 1250 wet pera- kg at kg / m 3 ) density difference of 1250 kg / m wet 3 ) of 5 density K each of 1250 0.1 kg / m 3 (73.5%) weight % more condenser be added elec- 100- 0.35 10: 2.3 : 0.5-1.5 At a ro- 1250 (con- 1.2747 : for ner mag- kg / m 3stant 1.2747 : a wet density of 1249 kg / m² at all temperatures up to 42 kg / m² 3 : mend density ten 50°C 0.1-1.1 and of where for stand 100 100 for a fixed kg / m 3 kg / m 3 a temperature of 918.75 kg at a (42%) – up to 1250 kg / m 3 ) ture difference of 0 to 50°C up to 3% density K each for a wet temperature of 1250 0.1 temperature kg / m 3 Per- (73.5%) weight difference % more of 5 retarder K each because added 0.1 % more condenser are added; at a Wet density of 1250 kg / m 3: no addition of plasticizer. Examples 129-134: Production of aerated lightweight concrete containing fly ash and graphite powder: Table 14 Example: Wet weight ratio of cement to the weight of the retarder, density / weight ratio of the liquid amount of water, 52.5 R to the amount of cement [%], based on the amount of cement, density of cement to the amount of graphite powder [kg : kg : kg : %] 129 100-12500.35 7.69 : 1.15 0.5 (20°C) 0.5kg / m 3 / : 1.15 : 1 (20°C) 42 kg at a wet density of 100 kg / m 3 (42%) – 918.75 kg at a wet density of 1250 kg / m 3 (73.5%) Electric 100-12500.35 7.69 : 1.15 0.9 (20°C) ―mag- kg / m 3 / : 1.15 : 1 net 42 kg with a shielding density and a resistance of 100 kg / m 3solid at (42%) – a 918.75 kg gradient at a wet density of up to 3% of 1250 kg / m 3 (73.5%) Electro- 100-12500.35 7.69 : 1.15 0.5 (20°C) 1.5 atmag- kg / m 3 / : 1.15 : 1 a netically 42 kg at wet- a tight shielding wet- density of 100 up to 399 and of 100 kg / m 3 ; high kg / m 3 1.0 at a flowable (42%) – a wet density of 400 to 799 kg / m 3 ; kg / m 3 0.75 at (73.5%) a wet density of 800 to 1250 kg / m 3 ; Elektro- 100-12000.35 7.69 : 1.150.1-1.1 for 0,5 – un- mag-kg / m 3 / : 1.15 : 1 a temperature dependent 42 kg at a temperature of 0 to the Wet 50°C temperature density at 100 kg / m 3 temperature difference of 5 K at a wet weight density of 0.1% more than 1200 kg / m 3higher added (73.5%) 100-12000.35 7.69 : 1.150.1-1.1 for 1.5 at flowable kg / m 3 / : 1.15 : 1 a temperature of 0 to 50°C where 42%: 42 kg / m³ a wet density of 100 kg / m³ a constant temperature of 0 to 399 kg / m³ 3 ; of 100 temperature- 1.0 at kg / m 3 difference in a (42%) – from 5 K wet density 525.0 kg each 0.1 weight density more to 749 kg / m 3 ; of 1250 added 0.75 at kg / m 3 give a (42%) wet density of 750 to 1200 kg / m 3 ; stand- 100-12500.35 7.69 : 1.150.5-1.5 for ― firm at kg / m 3 / : 1.15 : 1 a temperature gradient of 0 to 50°C with a wet density of 3% for a temperature of 100 kg / m 3 temperature (42%) – difference 921.25 kg of 5 K at a wet weight density of 0.1% more than 1250 kg / m 3Examples 135-137: Production of aerated lightweight concrete containing graphite powder - Table 15 Example: Wet weight Weight ratio Amount of liquid water 52.5 R to cement [Total weight ment] ment to cement [Total weight ment] ment to cement [%] ment to cement [kg : kg : kg : %] 135 Electro-100-12500.35 7.69 : 2 : 10.1-1.1 for 0.5 at mag- kg / m 3 / : 1.07 a temperature of 42 kg wet at a density of 0 to 50°C of 100 mm wet density of 799 kg / m 3 ; kg / m 3 temperature difference of 0.3 at (42%) – 918.75 kg of 1 K wet density at a wet density of 0.02 weight % from 800 to 1250 from 1250 more than 1 kg / m3 kg / m 3 Hesitant (73.5%) added electro- 100-12500.35 7.69 : 2 : 10.1-1.1 for 1.5 at mag- kg / m 3 / : 1.07 a temperature of 42 kg wet at a temperature of 0 to 50°C for a wet shielding density of 100 to 399 kg / m 3 ; high kg / m 3 temperature difference of 1.0 at a flowable 918.75 kg of 1 K wet density at a wet density of 0.02 weight % to 799 of 1250 more kg / m 3 ; kg / m 3 retarder 0.75 (73.5%) is added at a wet density of 800 to 1250 kg / m 3 Electro- 100-12500.35 7.69 : 2 : 10.5-1.5 for ― mag- kg / m 3 / : 1.07 a temperature of 42 kg at a wet density of 50°C and a temperature of 100 kg / m 3temperature difference (42%) – 918.75 kg of 1 K gradient with a wet density of up to 3% (42%) more than 1250 kg / m 3 retarder (73.5%) are added. Examples 138-140: Production of aerated lightweight concrete containing silica and poly(organo)siloxanes: Table 16 Example of aerated lightweight concrete containing silica and poly(organo)siloxanes: Density by weight by weight of water to cement to CSA (based on weight) ent +total cement to SiO2 amount to alumina, the ratio based on the cement + melted weight of cement + SiO2 cement, total wet weight of cement + SiO2, ie density [kg : kg : kg] of cement + R-cement + SiO2 in %] weight of CSA cement + weight of alumina cement + weight of SiO2 cement es SiO2 138 Special 100- 0.35 From 7.69 0.27 0,5 0,5 otherwise 1250 at a: 1.15: wt.-% suitable kg / m 3 ner 1.15 : 1 net in / 42 kg wet density at a tropical climate at a wet density ner of 100 of 100 density kg / m 3 kg / m 3 from to 0.41 over 100 at a- 7.04 : kg / m 3 ner 1.06 : (42%) – Wet density 1.06 : 1 900 kg at a wet density of 1250 kg / m 3 of 650 density kg / m 3 from to 7.04 : 1250 1.06 : kg / m 3 1.06 : 1 (72%) at a wet density of 1250 kg / m 3stand- 100-0.35 6.94 :0.27 0,9 0,5 solid 1250 1.04 : wt.% at one kg / m 3 1.04 : 1 nem / 42 kg at a wet density of up to 3% wet density of 100 kg / m 3 from to 7.67 : 100 1.15 : kg / m 3 1.15 : 1 (42%) – at a density of 918.75 wet kg / m at a density of 1250 wet kg / m 3 density of 1250 kg / m 3 (73.5%) High 100-0.35 6.94 :0.270.5 1.5 flow- 1250 1.04 : weight-% of a capable kg / m 3 1.04 : 1 wet / 42 kg at a wet density of 100 to 399 kg / m wet density of 100 3 kg / m 3 ; from to 7.67 : 1.0 at 100 1.15 : one kg / m 3 1.15 : 1 wet (42%) – at a density of 918.75 wet kg / m² at a density of 400 to 799 wet kg / m² 3 kg / m 3 ; density 0.75 of at a 1250 kg / m 3 Wet (73.5%) density from 800 to 1250 kg / m 3Examples 141-143: Production of aerated lightweight concrete containing poly(organo)siloxanes: Table 17 Example of aerated lightweight concrete containing poly(organo)siloxanes: Wet Density by weight of weight of weight of ratio Poly(organo)siloxanes 52.5% by weight ratio of water R Zeloxane retarder [% by weight of cement to cement (based on total weight of CSA cement)], based on the weight of cement, weight of wet cement, weight of cement, weight of cement ment weight kg] of the 52.5 [%] of cement R-cement ment + in %] weight of the CSA cement + weight of the Alumina cement 100- 0.35 6.67 : 1 : 0.29 0.1-1.1 0.5 1200 1 wt.% for kg / m 3 / at a temperature of 100 °C to a wet density of 42 kg / m² 3 50°C from to 0.3 where 100 wt.% for kg / m 3at a wet density of 882.0 kg / m² at a temperature of 1200 °C 3 reference wet density of 5 K each of 1200 0.1 kg / m 3 (73.5%) % more retarder added at high flow rate 100-0.35 6.67 : 1 : 0.3 0.1-1.1 1.5 1200 1 wt.% for a kg / m 3 / a wet density of 42%: 42 to 50°C from 100 to 399 kg / m 3 ; wet density where 1.0 is one of a 100 Temp- Wet- kg / m 3 pera- density (42%) – ture difference of 525.0 kg to 400 kg / m at a temperature of 5,749 K each 3 ; wet density 0.75 at a wet density of 0.1 kg / m 3 % density (42%) more of retarder 750 to 1200 kg / m 3 be given 100-0.35 6.67 : 1 :0.3 0.5-1.5 ― solid 1250 1 wt.% for at a kg / m 3 / a 42 kg temperature gradient of up to 50°C wet density of 0 to 3% where 100 for kg / m 3 a (42%) – temperature difference of 921.25 kg at a wet density of 5 K each 1250 0.1 kg / m 3 (73.7%) weight % more retarder Example 144: Production of aerated lightweight concrete containing a poly(organo)siloxane and SiO2: Table 18 Example Wet Density Amount Amount of weight ratio Poly(organo)siloxane liquefies total ratio 52.5 R ratio water cement retarder [amount of cement to CSA (based on the weight of SiO2)] cement to toner [amount of cement to SiO2] cement to SiO2 + cement to cement SiO2, on cement + weight [kg : kg : dh cement + weight kg : kg] weight of SiO2 on cement 52.5 [%] + R-cement + SiO2 in cement %] Weight of CSA cement + Weight of high-alumina cement + Weight of d es SiO2 144 100-0.35 6.99 :0.26 0.1-1.1 0.5 1250 1.05 : wt.% for kg / m 3 / 1.05 : 1 at a 42 kg at a wet temperature density at a wet density of 100 kg / m 3 ture of wet from 100 to 0.28 0 to density kg / m 3 Wt.% 50°C from to 7.69 : at a where 100 1.15 : wet for kg / m 3 1.15 : 1 density (42%) – at a temperature of 1250 918.75 wet kg / m 3 pera- kg at a density turdif- reference wet of 1250 kg / m 3 of 1 density K each of 1250 0.02 kg / m 3 (73.5%) % more retarder by weight. Examples 145-146: Production of aerated lightweight concrete containing a poly(organo)siloxane: Table 19 Example: Properties, wet, weight, weight, weight, weight, ratio, ratio, liquid, total, ratio, siloxane, 52.5 R to – bezo-to the weight ment total CSA den- ratio based on the total alumina ment to the total cement to the total cement to the melting weight ment total wet cement to cement density [%] ment [kg : kg : of cement in %] high 100-0.35 7.69 :0.3 0.1-1.1 1.5 at flowable 1250 2.01 : 1 wt.% for a capable kg / m 3 / Temperature Wet density at a temperature of 0 from 100 to 50°C 399 wet density where kg / m 3 ; of for a 1.0 at 100 temperature a kg / m 3 temperature wet density (42%) 918.75 kg at 1 K 400 to 799 each wet density 0.02 kg / m 3 ; density 0.75 of weight at a 1250% increase of kg / m 3 Retarder (73.5%) with a lower wet density of 800 to 1250 kg / m 3 100-0.35 7.74 :0.24 0.5-1.5 ― solid 1250 2.03 : 1 wt.% for a at a- kg / m 3 / at a temperature of 0 °C up to 42 kg wet density at a temperature of 100 °C up to 100 kg / m² 3 from 100 50°C 3% density to 7.69 : kg / m 3 where from 2.01 : 1 to 0.42 for a 100 at a weight % temperature- kg / m 3 Wet- at egg- temperature- (42%) – density ner difference- 918.8 of 1250 wet- rence kg at kg / m 3 density of 5 K one of each Wet 1250 0.1 Densities kg / m 3 weight of % more than 1250 kg / m 3 gerer (73.5%) Examples 147-153: Production of 3D printing mortar: Tables 20, 21 and 22Examples 147-149: 3D printing mortar with silicon dioxide and a poly(organo)siloxane - Table 20Example Wet Quantity Quantity Quantity density by weight by weight by weight by weight by weight [kg / m 3] Sand mix SiO2 Poly(or- with the ratio ratio [kg] gano)s- grain size to cement 100 kg [kg] per ten 0-1 ment 52.5 R to cement 100 kg mm [kg / kg] to CSA ment total weight [kg cement [weight total %] based on sand 100 kg and cement weight of sand and cement] 147 1900-72 2.57 : 1 2.33 : 1 0.1-1.1 10 0.1682100 for a temperature of 0 to 50°C, whereby a temperature difference of 5 K, 0.1% by weight more retarder is added 1900- 72 2.57 : 1 4.66 : 1 0.1-1.1 ― 0.15542100 for a temperature of -5°C to 50°C, whereby for a temperature difference of 5 K, 0.1% by weight more retarder is added 149 1900-72 2.57 : 1 2.33 : 1 0 at - ― 0.1682100 10°C; 0.05 at - 5°C; then 0.1-1.1 for a temperature of 0°C to 50°C, whereby for a temperature difference of 5 K, 0.1% more retarder is added. Examples 150-151: 3D printing mortar with a poly(organo)siloxane - Table 21 Example Wet Quantity Quantity Quantity density by weight by weight by weight by weight by and [kg / m 3 ] Sand composite Poly(or- Glass- Egg- with the ratio ratio gano)si- fiber grain size to cement sand Ce- Composite size to cement [kg] per 0-1 ment 52.5 R to cement 100 kg 100 kg mm [kg / kg] to CSA ment weight 3D [kg cement [%] total compression ment weight mor- based on sand mass 100 kg and cement 3D ment compression mortar mass]150 2000- 70 2.33 : 1 2.33 : 1 0.1-1.1 0.18 0.352200 for a temperature of 0 to 50°C, where for a temperature temperature difference of 5 K each 0.1 weight % more retarder be added 151 1800- 70 2.33 : 1 2.33 : 1 0.1-1.1 0.18 0.72200 for a temperature of 0 to 50°C, whereby for a temperature difference of 5 K, 0.1% more retarder is added. Examples 152-153: Production of 3D printing mortar: Table 22 Example Wet Quantity Quantity Quantity Density by weight by weight by weight of egg and [kg / m 3 ] Sand mix- mix- Poly(or- sen- sine- with the ratio ratio gano)si- oxide- gen- grain- Sand Ze- zöl- loxane powder create- size ment gerer [kg] per [% of the ten 0-1 52.5 R 100 kg Quantity mm to cement to CSA to cement weight [kg cement total 42.5 R based on [kg / kg] cement [%] weight of cement on sand in kg] 100 kg and cement 3D printing mortar mass]2000- 70 2.33 : 1 2.33 : 10.1-1.1 0,18 12200 (instead of a cement temperature of 42.5 R for 52.5 R, a so-called temperature difference of 5 K is used for cement, whereby 0.1% more by weight of retarder is added in each case) 2000- 70 2.33 : 1 2.33 : 10.1-1.1 0,18 1 2200 (instead of 52.5 R one Cement is used for a so-called temperature difference of 42.5 R 0 to 50°C, whereby 0.1% more retarder by weight is added in each case. Examples 154-158: Preparation of a composition for the production of 3D printed mortar using pre-tempered water - Table 23 B eispiel Gewichts- Components Delay and its ratio and their amount, based on 100 kg of water to cement Amount, based on 100 kg of the entire 3D printing mortar composition Wet density of the entire 3 [kg / m 3 ] D-compression mortar composition 1543D 0,40-0,55 / Sand (0-1 mm): If the water temperature is previously brought to a temperature of 10°C, 15°C, 20°C, 25°C, 30°C, 19.6 kg; 1900-2100 CSA cement: 72 kg; the setting time is delayed by min. Optional: 9 or 8 or 7 or 6 or 5 shrinkage reducer: 0.196 kg. The setting time can then be extended by one minute at a time by adding 0.02 wt.% retarder per minute, based on the total amount of cement. This means that in order to extend the setting time to 22 minutes at a water temperature of 10°C, 0.26% by weight of retarder, based on the total amount of cement, must be added after 9 minutes. 1553D 0.40-0.55 / Sand (0-1 mm): If the water temperature is previously brought to a temperature of 10°C, 15°C, 20°C, 25°C, 30°C, CSA cement: 8.4 kg; Fiber 19.6 kg; Pressurised mortar 52.5R cement: 1900-2100 72 kg; Glass fibres: 0.35 9 or 8 or 7 or 6 or 5 kg; min. Optional: The setting time can then be extended by one minute at a time by adding 0.02% by weight of retarder per minute, based on the total amount of cement. This means that to extend the setting time to 22 minutes at a water temperature of 10°C, 0.26% by weight of retarder, based on the total amount of cement, must be added after 9 minutes. 1563D 0.40-0.55 / Sand (0-1 mm): If the water temperature is previously reduced to a temperature of 1900-2100 72 kg; Compression mortar 52.5R cement: Fiber 19.6 kg; 10°C, 15°C, 20°C, 25°C, 30°C CSA cement: 8.4 kg; the setting time is delayed by 9 or 8 or 7 or 6 or 5 kg; min. optional: After that, the setting time can be extended by one minute by adding 0.02 wt.% retarder per minute, based on the total amount of cement.To extend the setting time to 22 minutes at a water temperature of 10°C, 0.26 wt.% retarder, based on the total amount of cement, must be added after 9 minutes. 1573D 0.40-0.55 / Sand (0-1 mm): If the water temperature is previously brought to a temperature of 10°C, 15°C, 20°C, 25°C, 30°C, the setting time is delayed by 19.6 kg; 1900-2100 72 kg; CSA cement: 52.5R white mortar: 19.6 kg; 15°C, 20°C, 25°C, 30°C. Iron oxide powder: 9 or 8 or 7 or 6 or 5 0.112 kg or min. 1 wt.% based on the total amount of cement, optional: glass fiber. After that, the setting time can be extended by one minute at a time by adding each amount of water: 0.35 kg; because 0.02 wt.% retarder per minute, based on the total amount of cement, optional: shrinkage reducer: 0.196 kg. 1583D 0.40-0.55 / Sand (0-1 mm): If the water temperature is 1900-2100 72 kg; : 10°C, 15°C, 20°C, 25°C, 30°C, CSA cement: 8.4 kg; 19.6 kg; the setting time is delayed by Iron oxide powder: 9 or 8 or 7 or 6 or 5 0.112 kg or min. 1 wt.% based on the temperature of black mortar 52.5R cement: 10°C, 15°C, 20°C, 25°C, 30°C, because 0.02 wt.-% retarder; retarder; retarders: 0.35 kg; optional: glass fiber; retarders: 0.196 kg; optional: shrinkage reducer by one minute each. This means that in order to extend the setting time to 22 minutes at a water temperature of 10°C, 0.26 wt.% retarder, based on the total amount of cement, must be added after 9 minutes. Examples 159-160: Production of concrete: Table 24 B eispiel 159 160 Wet density 2200-2400 kg / m3 2200-2400 kg / m3 Weight ratio of water to cement 0.21-0.23 0.21-0.23 components and their quantity, based on 100 kg of the total concrete composition Sand (2 – 8 mm): 26.6 Sand (0 – 2 mm): 37 kg; kg; 52.5 R Cement: 30 kg; 52.5 R Cement: 30 kg; Plasticizer: 0.665 kg; Quartz flour / basalt Silica (0.1 mm): 16.5 kg; kg; B eschleuniger (tem-Plasticizer: 0.75 kg (temperature dependent): Poly(organo)siloxane: 0.798 kg at 0°C to 0.0207 kg; 0.266 kg at 50°C; Accelerator (temperature viscosity regulator: 0.125 temperature dependent): 0.9 k g ; kg at 0°C to 0.3 kg polypropylene fibers at 50°C; (18 mm): 0.3 kg. Viscosity regulator: 0.125 kJ g ; Polypropylene fibers (18 mm): 0.3 kg.Example 161: Production of concrete: Table 25Example 161 Wet density 1900-2600 kg / m3; preferably 2200-2400 kg / m 3 Weight ratio of water to cement components and their quantity, based on 100 kg of the total concrete composition: Sand (0.4 mm): 22.0 kg; Cement: 30 kg; Plasticizer: 0.665 kg; Silicon dioxide (0.1 mm): 11.0 kg; Accelerator (temperature dependent): 0.798 kg at 0°C to 0.266 kg at 50°C; Viscosity regulator: 0.125 kg; Polypropylene fibers (18 mm): 0.3 kg. Examples 162-165: Production of high-performance concrete: Table 26 Example Wet weight ratio of water to cement components and their density amount, based on 100 kg of the total concrete composition 162 1900-0.21-0.23 Sand (0 – 2 mm): 37 kg; 2100 Sand (0.05-0.03 mm): 22 kg; kg / m 3 52.5 R Cement: 30 kg; Silica (0.018-0.03 mm): 11 kg; Plasticizer: 0.925 kg; Accelerator (temperature-dependent): 1.11 kg at 0°C to 0.37 kg at 50°C; Viscosity regulator: 0.125 kg; Polypropylene fibers (18 mm): 0.3 kg. 163 1900-0.21-0.23 Sand (0-2 mm): 33 kg; 2100 Sand (0.05-0.03 mm): 19 kg; kg / m 3 52.5 R Cement: 30 kg; Silicon dioxide (0.018-0.03 mm): 9.5 kg; Plasticizer: 0.75 kg; Poly(organo)siloxane: 0.0207 kg; Accelerator (temperature-dependent): 0.9 kg at 0°C to 0.3 kg at 50°C; Viscosity regulator: 0.125 kg; Polypropylene fibers (18 mm): 0.3 kg. 164 1900-0.21-0.23 Sand (0-2 mm): 32 kg; 2100 Sand (0.05-0.03 mm): 19 kg; kg / m3 52.5 R Cement: 30 kg; Silicon dioxide (0.018-0.03 mm): 9.0 kg; Graphite powder: 3.0 kg; Plasticizer: 0.75 kg; Poly(organo)siloxane: 0.126 kg; Accelerator (temperature-dependent): 0.9 kg at 0°C to 0.3 kg at 50°C; Viscosity regulator: 0.125 kg; Polypropylene fibers (18 mm): 0.3 kg. 1900-0.21-0.23 Sand (0 – 2 mm): 32 kg; 2100 Sand (0.05-0.03 mm): 19 kg; kg / m 3 52.5 R Cement: 30 kg; Silicon dioxide (0.018-0.03 mm): 9.0 kg; Graphite powder: 3.0 kg; Plasticizer: 0.75 kg; Poly(organo)siloxane: 0.183 kg; Accelerator (temperature dependent): 0.189 kg at 0°C to 0.063 kg at 50°C; Viscosity regulator: 0.125 kg; Polypropylene fibers (18 mm): 0.3 kg. Example 166: Preparation of the composition for an elastic porous lightweight concrete: Table 27 Example Wet Density Density by weight of weight of ratio Poly(or- liquefied zegano)si ratio water ratio loxane – retarder [Density of cement to the 52.5 R to the total weight of cement CSA ratio based on the total ratio of cement to the total cement to the melted weight of cement to the total wet cement to the cement amount density [kg : kg : ment [weight of cement kg] %] ment in %] 1 66 elas- 100-0.35 6.67 : 1 :0.29 0.5 at 0.5 at table 1250 1 wt.% 20°C 20°C kg / m 3 / at a wet density of 42 kg at a wet density of 100 kg / m 3 from to 0.30 100 wt% kg / m 3 at a (42%) – 918.75 wet density kg at a wet density of 1250 kg / m 3 of 1250 kg / m 3 (73.5%)

Claims

Patent claims 1. A composition for producing aerated lightweight concrete containing the following components: i) a powdered main component selected from CEM IZement, CEM II cement, and mixtures thereof, preferably selected from 52.5 R cement, 42.5 R cement, 32.5 R cement, and mixtures thereof; ii) a further first powdered secondary component selected from CSA cement, calcium aluminate cement and mixtures thereof; iii) optionally a further second secondary component selected from glass fibers, iron oxide powders and colorants, as well as graphite powder, fly ash, silicon dioxide, quartz flour, basalt, plastic fibers, accelerators, viscosity regulators, polyurethanes, polyvinyl acetates, poly(ethylene-vinyl acetate)s and poly(organo)siloxanes; iv) at least one liquid secondary component selected from retarders and plasticizers; v) at least one liquid foaming agent; andvi) water;wherein the composition of the composition is in particular individually adaptable to the ambient temperatures of the composition, wherein the amount of plasticizer and / or the amount of retarder is in each case in the range of 0.05 to 2.00 wt.%, based on the total weight of cement in the composition, and; wherein the composition has a wet density in the range of 100 to 1250 kg / m 32. The composition according to claim 1, wherein the powdered main component i) is 52.5 R cement or 42.5 R cement or a mixture thereof, preferably wherein the powdered main component i) is 52.5 R cement, and wherein the first powdered secondary component ii) is CSA cement or calcium aluminate cement or a mixture thereof, preferably wherein the first powdered secondary component ii) is CSA cement.

3. The composition according to claim 1 and / or claim 2, wherein the weight ratio of component i) to component ii) is in the range from 10:1 to 1:1, preferably in the range from 5:1 to 1.2:1, particularly preferably in the range from 4:1 to 1.3:1, preferably when component i) is CEM I cement and component ii) is CSA cement, particularly preferably when component i) is S2.5 R cement and component ii) is CSA cement. 4.The composition according to claim 2 and / or claim 3, wherein the CSA cement is at least partially replaced by calcium aluminate cement, preferably the CSA cement being replaced by calcium aluminate cement in a range of 30 to 70 wt.%, more preferably in a range of 40 to 60 wt.%, most preferably in a range of 45 to 55 wt.%.

5. The composition according to one or more of the preceding claims, wherein the liquid foaming agent v) is present in an amount in the range of 10 to 50 g per 1 liter of water, preferably in an amount. in the range of 20 to 40 g per 1 liter of water, more preferably in an amount in the range of 25 to 35 g per 1 liter of water, most preferably in an amount in the range of 28 to 32 g per 1 liter of water.

6. The composition according to one or more of the preceding claims, wherein the amount of retarder is in the range of 0.1 to 1.5 wt.%, based on the total weight of cement.

7. The composition according to one or more of the preceding claims, wherein the weight ratio of water to cement is in the range of 0.2:1 to 0.6:

1.

8. The composition according to one or more of the preceding claims, wherein the weight ratio of water to cement is in the range of 0.2:1 to 0.4:

1.

9. A process for preparing the composition according to one or more of the preceding claims, which comprises the following steps: a) introducing the at least one liquid secondary component iv) into water, preferably via a metering pump,and mixing this secondary component and water to form an aqueous mixture; b) introducing the at least one liquid foaming agent v) into water and mixing with air to produce foam; c) introducing the further components i), ii), and iii) into a first mixer, preferably via individual, separate metering pumps, and mixing them with the aqueous mixture produced in step a) to form a slurry; d) further mixing the slurry produced in step c) in a second mixer, with the foam produced in step c) added to the composition; e) removing the composition from the second mixer; wherein the amounts of components i) to iv) are individually adjusted to the ambient temperatures.

10. The method according to claim 9, wherein steps a) to e) are carried out continuously.

11. Aerated lightweight concrete,produced by drying a composition according to one or more of claims 1 to 8.

12. Use of a dried composition according to one or more of claims 1 to 8 as aerated lightweight concrete.

13. A composition for producing flowing screed, 3D printing mortar or filler, comprising the following components: i) a powdered main component selected from CEM I cement, CEM II cement, sand, quartz sand and mixtures thereof, preferably selected from 52.5 R cement, 42.5 R cement, 32.5 R cement, sand, quartz sand and mixtures thereof; ii) a further first powdered secondary component selected from CSA cement, calcium aluminate cement and mixtures thereof; iii) optionally a further second secondary component selected from glass fibers, iron oxide powders and colorants, as well as graphite powders, fly ash, silicon dioxide, quartz flour, basalt, Plastic fibers, accelerators, viscosity regulators, polyurethanes, polyvinyl acetates, poly(ethylene-vinyl acetate)s and poly(organo)siloxanes; iv) at least one liquid secondary component selected from retarders, plasticizers and shrinkage reducers; and vi) water; wherein the composition of the composition is in particular individually adaptable to the ambient temperatures of the composition, wherein the amount of plasticizer and / or the amount of retarder is in each case in the range of 0.05 to 2.00 wt.%, based on the total weight of cement in the composition, and wherein the composition has a wet density in the range of 1800 to 2200 kg / m 3 for 3D printing mortar, a wet density in the range of 2000 to 2200 kg / m 3 for flowing screed and a wet density in the range of 1900 to 2000 kg / m 3for filler.

14. The composition according to claim 13, wherein the amount of retarder is in the range of 0.1 to 1.5 wt.%, based on the total weight of cement.

15. The composition according to claim 13 or claim 14, wherein the weight ratio of water to cement is in the range of 0.2:1 to 0.6:1, preferably in the range of 0.3:1 to 0.55:

1.

16. A process for producing the composition for producing flowing screed, 3D printing mortar or filler according to one or more of claims 13 to 15, which comprises the following steps: a) introducing the at least one liquid secondary component iv) into water, preferably via a metering pump, and mixing this secondary component and water to form an aqueous mixture; c) introducing the further components i), ii) and iii) into a first mixer, preferably via individual, separate metering pumps, and mixing them with the aqueous mixture produced in step a) to form a slurry; d) further mixing the slurry produced in step c) in a second mixer to form the composition; and e) removing the composition from the second mixer;wherein the amounts of components i) to iv) are in particular individually adapted to the ambient temperatures.

17. The process according to claim 16, wherein steps a), c), d) and e) take place continuously.

18. Flowing screed, 3D printing mortar and filler produced by drying a composition according to one or more of claims 13 to 15.

19. Use of a dried composition according to one or more of claims 13 to 15 as flowing screed, 3D printing mortar or filler.

20. Composition for producing concrete, which contains the following components: i) a powdered main component selected from CEM IZement, CEM II cement and mixtures thereof, preferably selected from 52.5 R cement, 42.5 R cement, 32.5 R cement and mixtures thereof; ii) a further first powdered secondary component selected from CSA cement, calcium aluminate cement and mixtures thereof;iii) optionally a further second secondary component selected from glass fibers, iron oxide powders and colorants, as well as graphite powders, fly ash, silicon dioxide, quartz flour, basalt, plastic fibers, accelerators, viscosity regulators, polyurethanes, polyvinyl acetates, poly(ethylene-vinyl acetate)s and poly(organo)siloxanes; iv) at least one liquid secondary component selected from retarders and plasticizers; and vi) water; wherein the composition of the composition is in particular individually adaptable to the ambient temperatures of the composition, wherein the amount of plasticizer and / or the amount of retarder is in each case in the range of 0.05 to 2.00 wt.%, based on the total weight of cement in the composition; and wherein the composition has a wet density in the range of 1900 to 2600 kg / m3, preferably in the range of 2000 to 2500 kg / m3, preferably in the range of 2200 to 2400 kg / m; 3 , has.

21. A process for producing the composition for producing concrete according to claim 20, comprising the following steps: A) introducing the at least one liquid secondary component iv) into water, preferably via a metering pump, and mixing this secondary component and water to form an aqueous mixture; B) introducing the further components i), ii), and iii) into a first mixer, preferably via individual, separate metering pumps, and mixing them with the aqueous mixture produced in step a) to form a slurry; C) further mixing the slurry produced in step c) in a second mixer; and D) removing the composition from the second mixer; Wherein the amounts of components i) to iv) are, in particular, individually adapted to the ambient temperatures.

22. Concrete produced by drying a composition according to claim 20.

23. Use of a dried composition according to claim 22 as concrete. 24.The composition according to any one of claims 1-8, 13-15 and 20, wherein the composition can be prepared in situ at an ambient temperature of the composition of 0°C to 50°C, and / or the individual amounts of the liquid secondary components iv) are adapted to the ambient temperatures of the composition and / or the individual amounts of the liquid components iv) to a measurement accuracy of at least 5% of the total amount used, preferably. of at least 2% of the total amount used, particularly preferably at least 1% of the total amount used, can be precisely dosed.