260results about How to "Impermeable" patented technology

The invention relates to a synchronous slip casting material and a preparation method for tunnels, in particular to a sulphoaluminate cement base synchronous slip casting material, which is characterized in that the sulphoaluminate cement base synchronous slip casting material is prepared by a basal body component and an externally-mixing component, wherein the basal body component comprises sulphoaluminate cement, coal ash, powdered ore, sand and water, the externally-mixing component comprises polycarboxylic acids highly-effective water reducing agent, sodium bentonite and triethanolamine early-strength admixture, the proportioning (kg/m3) of each component is that sulphoaluminate cement: 100-200, coal ash: 300-400, powdered ore: 45-455, sand: 700-1200, water: 350-500, polycarboxylic acids highly-effective water reducing agent: 3.0-4.0, sodium bentonite: 40-60, and triethanolamine early-strength admixture: 0.05-0.2. The synchronous slip casting material prepared by the method has the characteristics of excellent early-stage intensity, underwater non-dispersibility, permeability-resisting and corrosion resistance, and can be used in large-scale river-sea-crossing tunnels or underground engineering.

The invention discloses a cement concrete pavement patching material. The cement concrete pavement patching material consists of the following materials in percentage by weight: 15.6%-23.6% of portland cement, 15.6%-23.6% of sulfate aluminum cement, 6%-15% of ground calcium carbonate powder, 2.5%-7% of redispersible latex powder, 0.08%-1.8% of lithium carbonate, 0.7%-1.03% of fiber, 0.1%-0.22% of tartaric acid, 0.02%-0.06% of cellulose ether, 26.56%-59.04% of quartz sand, 0.08%-0.25% of a polycarboxylate water reducer, 0.08%-0.33% of an organic silicon antifoaming agent and 0.2%-0.55% of an organic silicon water repellent. The cement concrete pavement patching material disclosed by the invention is adopted, so that ultra-thin patching, ultra-strong compressive strength bonding strength and ultra-strong durability can be realized, and therefore, the damaged part of the cement pavement can be timely repaired without the need of closing traffic for a long time.

The invention relates to the field of building materials, in particular to a lightweight insulating brick. The lightweight insulating brick is prepared by mixing the following raw materials: 8 to 15 percent of gelled material, 30 to 50 percent of aggregate, 25 to 55 percent of lightweight material, 1 to 2 percent of aids and 3 to 4 percent of waterproof powder. Because lightweight materials of industrial and agricultural wastes are added into the lightweight insulating brick, the lightweight insulating brick changes waste into valuable, protects the environment, is energy-saving, insulates sound and heat, has strong insulating property and is warm in winter and cool in summer; and compared with an air-entrained cement building block, the lightweight insulating brick has the advantages of strong water resistance, water leakage resistance, high strength, strong safety, good compactness, slurry drop resistance, low investment and easy popularization.

The invention discloses a gray brick mechanically manufactured from lime sludge and construction wastes and a method for manufacturing the same. The materials for mechanically manufacturing the gray brick comprise the following raw materials in portion by weight: 1,015 to 1,135 portions of construction waste crushed materials, 240 to 290 portions of cement, 810 to 1,010 portions of lime sludge, 60 to 75 portions of gray lime, and 100 to 125 portions of water, wherein the particle size of the construction waste crushed materials is less than 15 millimeters. If necessary, less than 20 portions of fly ash and proper amount of activating agent can be added to the materials. The method for mechanically manufacturing gray brick comprises the following steps: firstly, crushing the construction wastes; secondly, mixing the construction waste crushed materials with the other materials according to the proportions; and thirdly, pressing the mixture by adopting a mechanical method so as to produce the gray brick of the invention. The gray brick and the method for manufacturing the same recycle the sludge and the construction wastes in a reducing, harmless and resource-utilizing mode, and solve the problem that substituting materials and products are hard to find after clay bricks are forbidden to use and the problem of gray brick sources for civilian constructions.

The invention discloses an experimental apparatus and a test method for evaluating the high temperature performance of a drainage asphalt pavement under a multi-field coupling effect. The experimental apparatus comprises a dynamic loading device, a working box, a pressure measurement device, a water pressure dissipation device, a temperature control device, a water outlet and a fixation device. With the experimental apparatus of the present invention, the high temperature performance of the drainage asphalt pavement under the common dynamic change of the dynamic stress field, the temperature field and the hydraulic field can be evaluated, the dynamic water pressure of the drainage asphalt pavement under the dynamic load effect can be measured, and the difference of the high temperature performance of the drainage asphalt pavement during the rainfall process can be simulated; and the experimental apparatus and the test method can be used for the research of the damage on the drainage asphalt pavement in the actual use environment, and have good simulation effects.

The invention relates to an external heat insulation board structure for a polyurethane external wall, which is mainly used for the modern building external wall external heat insulation technical field. The structure mainly comprises an inorganic fireproofing bottom layer, a flame-retardant hard polyurethane foam material, a decorative surface layer and so on. The structure has convenient and simple installation: firstly, the surface of a base course wall body is treated to remove floating ash on the surface of the base course wall body, then bonding mortar is used to level the surface of the base course wall body and then is used to directly and dryly paste one surface of the inorganic fireproofing bottom layer of a polyurethane heat insulation board on the surface of the external wall (whether an expanding screw is used to fix is determined according to the concrete requirement); a heat insulation wall body of the external wall can directly use materials such as marbles and so on as a finish layer, so only the waterproofing treatment at the seams needs to be well done, and the work for producing the finish layer on the surface of the wall body is saved. The quick and convenient installation mode improves the work efficiency of the construction and shortens construction period. At the same time, the energy-saving wall body also has the advantages of good heat insulation effect, excellent water resistance, long service life and so on.

The invention relates to an ecological low cement-based finishing mortar. The ecological low cement-based finishing mortar consists of the following components in percentage by weight: 12.5 percent of white cement, 50 percent of high-whiteness quartz sand, 30 percent of ground limestone, 0.15 to 0.2 percent of cellulose ether, 0.3 to 0.4 percent of lignocellulose, 0.2 to 0.4 percent of water repellent, 0.2 percent of efflorescence inhibitor, 6 percent of redispersible latex powder and 0.4 to 0.5 percent of starch ether. The materials are uniformly mixed and then added with water which is 18 percent of the total weight of the materials, and after uniform mixing, the ecological low cement-based finishing mortar is produced. The white cement, the quartz sand and the ground limestone are elaborately proportioned and then added with the other auxiliary materials, consequently, the product cost is low, and the ecological low cement-based finishing mortar has the characteristics of good weather fastness, seepage resistance, water-proofness, mould-proofness, energy saving, environment-friendliness, easiness in dry powder storage, long guarantee period, and the like, convenience in transportation, and is suitable for the construction of inner and outer walls of buildings under various environmental weather conditions.

The invention relates to materials applicable to underground engineering construction, in particular to environment-friendly shield construction single-liquid synchronous grouting slurry. The slurry comprises the following materials in percentage by weight: 55 to 70 percent of sand, 10 to 20 percent of desulphurization gypsum, 10 to 20 percent of fly ash and the balance of additive and water, wherein the additive is a water-soluble high-molecular polymer thickening agent and/or a high-performance polycarboxylic water reducing agent; the water-soluble high-molecular polymer thickening agent is 0.5 to 1.0 percent of the total weight of the desulphurization gypsum and the fly ash; and the high-performance polycarboxylic water reducing agent is 0.75 to 1.25 percent of the total weight of the desulphurization gypsum and the fly ash. Compared with the conventional single-liquid synchronous grouting, the grouting slurry has the advantages of substituting the lime powder with high energy consumption and high pollution for waste desulphurization gypsum, along with the same performance. The grouting slurry solves the problems of a large amount of land occupied by the desulphurization gypsum and serious environmental pollution, also avoids the use of the lime powder with high energy consumption and high pollution and fulfills the aims of energy conservation and environmental protection. Meanwhile, a new way is found for the application of the desulphurization gypsum.

The invention relates to a rubber material and a rubber material product. The invention aims to provide the rubber with permeability, so as to promote updating and upgrading of products in various industries. The invention adopts the technical proposal that the permeable rubber has the compositions of general rubber. The invention is characterized in that the compositions in weight portion of the permeable rubber are 40 to 65 portions of natural rubber, 0.5 to 60 portions of polyethylene oxide, 6 to 9 portions of butadiene-styrene rubber, 1 to 3 portions of sulfur, 1 to 1.5 portions of accelerant, 2 to 4 portions of zinc carbonate, 0.2 to 0.4 portion of stearic acid, 8 to 12 portions of white carbonic acid, 1.2 to 1.4 portions of antiaging agent and 1.3 to 1.7 portions of homogenizing agent. The permeable rubber can be used for manufacturing footwear materials and mackintoshes.

This invention relates to a fiber reinforced artificial stone tomb box and making method, which contains fiber reinforced artificial stone made box unit with cavity and box cover with lower convex edge engaged with upper edge of box unit. The method contains mixing and agitating raw material into slurry, laying fiber net fabric in mold, putting slurry in mold, by molding, maintenance, stripping, repairing, finishing, spraying surface treating liquid to get products, raw material ratio is 30-60 part of cement, 40-65 part of fine aggregate, 1-4 part fiber filament, 1-8 part of anti-cracking permeability-reducing admixture, 0.2-1 part of superplasticizer, 1-5 part of silicate intensifier, 0-4 part of surface treating liquid, 0-0.5 part antifoaming agent and 0-0.5 part of paint. Said invention has advantages of fine anti-impact ability and impermeability, high strength, fine outline and low cost.

The invention provides a modified calcium oxide expansion agent for cement concrete. The modified calcium oxide expansion agent for the cement concrete has the specific surface area of 100-600m<2>/kg and is prepared from a degradable high polymer and calcium oxide expansion clinker. According to the modified calcium oxide expansion agent for the cement concrete, provided by the invention, the invalid hydration of calcium oxide at a plastic stage of concrete is reduced, the hardened expansion quantity is increased, and the shelf life of the product can be further prolonged; the expansion agent can be applied to the crack resisting and seepage prevention of a concrete structure and can be used for greatly improving the durability of the concrete.

The invention relates to an efficient sound-absorbing ceramsite, belonging to the technical field of a building material. Aiming to solve the problems that city pollution can not be well solved, product properties are poor, the poor sound-absorbing effects are poor and the production cost is high in the prior art by mainly using the shale as ceramsite, can be solved, The invention provides the efficient sound-absorbing ceramsite, which is prepared from raw materials mainly consisting of raw materials of 60-80% of sludge, 5-20% of the shale, 5-20% of coal ash and 1.0-10% of additive. The efficient sound-absorbing ceramsite provided by the invention has the properties of wide sound-absorbing frequency band, fire resistance, good durability, freezing resistance, seismic resistance, high sound-absorbing coefficient, high porosity, light weight, high strength, heat resistance, anti-permeability and the like. The efficient sound-absorbing ceramsite further can be used for preparing a road barrier and a metro sound-absorbing material and has wide application prospect. Furthermore, the efficient sound-absorbing ceramsite provided by the invention mainly uses city sludge, so that not only can the problem of the city sludge be solved well, but also the overuse of a natural resource of the shale is reduced.

The invention discloses thermal light and thin fabric which is formed by interweaving of A yarn and B yarn, wherein the A yarn comprises, by mass, 60%-75% of wool fibers and 25%-40% of bamboo-carbon fibers, the B yarn comprises, by mass, 50%-60% of kapok fibers, 20%-30% of mulberry silk fibers and 10%-20% of modal fibers, and both the A yarn and the B yarn are formed through twisting by means of the siro spinning technology. In this way, the fabric is light and thin, breathable, good in thermal performance, capable of inhibiting and resisting bacteria, non-toxic, harmless, environmentally friendly, and safe.

The invention relates to a mortar and provides an adhesive mortar for a ceramic tile. The adhesive mortar for the ceramic tile contains tailings, is high in tensile adhesive strength and low in cost, does not pollute the environment, and has a heat preservation effect. The adhesive mortar for the ceramic tile comprises the following materials in parts by weight: 30-35 parts of ecological cement, 0.5-0.6 part of polyving akohol, 30-50 parts of tailings, 5-10 parts of polypropylene monofilament, 1.3-2.8 parts of a defoamer, 12-17 parts of a water reducer, 17-19 parts of coal ash, 7-9 parts of glass bead, 21-32 parts of ceramic sand, 1.5-2.5 parts of cellulose ether, 4-8 parts of redispersible powder and 70-90 parts of water, wherein the ceramic sand comprises sand grains with the grain diameters of 0.10-2.0 mm and with a plurality of pores not communicated in the surfaces.

The invention discloses a cement clinker and belongs to the technical field of cement clinker production. The clinker is prepared from the following raw materials in percentage by mass: 30 to 60 percent of calcareous materials, 0 to 25 percent of siliceous materials, 10 to 40 percent of aluminum materials, 0 to 10 percent of ferrous materials and 5 to 20 percent of gypsum materials; a mineral composition of the clinker is prepared from 10 to 40 percent of C4AS, 25 to 40 percent of C2S and 10 to 30 percent of C4AF. According to the clinker disclosed by the invention, the iron content of the cement clinker is low, and the seawater erosion resisting ability of the clinker is improved; the cement clinker is especially suitable for marine engineering.

The invention provides a new method for tissue culturing chrysanthemum. It employs cold light source (light-emitting diode) as light source, and determines the optimum ratio of red light to blue light and the best light emitting strength. It takes poromeric fluoroethylene resin film as culturing container for tissue culture sprout; and employs rock fiber block as culture medium. The growing speed for tissue culture sprout is one time faster than that with normal culture method. The tissue culture sprout and replanting sprout are characterized by largest plant height, largest leaf number, root number, longest root length and largest dry net weight of haulm and root, high rate of emergence and little pollution rate.

The invention discloses high-ductility waterproof anti-crack composite mortar and a mixing method and a construction method thereof. The mortar is prepared from cement, fly ash, mineral powder, lime powder, silica fume, a primary admixture, quartz sand, redispersible latex powder, a waterproof agent, polyvinyl alcohol powder, a water reducing agent, an epoxy emulsion, a curing agent, hydroxypropylmethyl cellulose, an expanding agent and polyvinyl alcohol fibers. According to the disclosed mixing method, a reasonable feeding sequence is adopted to obtain a uniform mortar material. The construction method provided by the invention adopts construction steps suitable for the mortar provided by the invention for different building environments. The composite mortar prepared by the invention has the advantages of water resistance, crack resistance, high ductility, high cohesiveness, seepage resistance, harmful ion erosion resistance, no shrinkage, simplicity and convenience in constructionand the like; can be used for rigid waterproof and anti-cracking engineering of building outer walls and toilets, rigid waterproof and anti-cracking engineering of places such as elevator shafts, roofs and basements, and hydrological engineering such as ports and wharfs which need to be waterproof, anti-cracking and corrosion-resistant.