85 results about "Perlite" patented technology

The invention discloses a high heat storage density stable thermochemical adsorption composite heat storage material and a preparation method thereof, the high heat storage density stable thermochemical adsorption composite heat storage material comprises 54%-57% by mass of mixed salt and 43%-46% by mass of a porous material, the mixed salt comprises MgSO4 and MgCl2, the mass ratio of MgSO4 to MgCl2 is 9: 1-6: 4, and the porous material is expanded perlite modified by nano alumina or a silane coupling agent. The high-heat-storage-density stable thermochemical-adsorption composite heat storage material provided by the invention is simple in preparation method, and the modified expanded perlite is used as a carrier of the mixed hydrated salt; the obtained composite heat storage material has excellent performance: the salt-containing load rate is 114-121%, the water absorption rate is 1.2-1.28 g / g, the heat storage density is 1123.5-1208.6 kJ / kg, the heat storage temperature is 133.4-141.3 DEG C, the structural strength is 10.346-12.631 kPa, the structural stability is 99.27-99.53%, and the stability is 79.7-83.3% after circulation for 30 times, that is, the composite heat storage material is high in heat storage density, high in water absorption rate, low in heat storage temperature, high in strength and not easy to scatter and fall off, and the composite heat storage material is suitable for large-scale production. And the material also has relatively good cycling stability.

This invention discloses a lightweight, high-strength ceramsite proppant based on composite coating and low-temperature densification, and its preparation method. The coated proppant includes a ceramsite proppant and a coating layer covering the surface of the ceramsite proppant. It relates to the field of fracturing technology in oil and gas engineering. The ceramsite proppant includes bauxite, perlite, a composite sintering aid, B2O3, and AlF3; the composite sintering aid includes MnO2 and TiO2; wherein the weight ratio of bauxite, perlite, composite sintering aid, B2O3, and AlF3 is 80:20:2.5-7.5:3-12:3-12. This invention uses a low-grade bauxite and high-silica raw material system, combined with the introduction of an appropriate amount of sintering aid, effectively reducing the sintering temperature and energy consumption; simultaneously reducing the bulk density of the ceramsite proppant, resulting in a lightweight product.

The present invention provides a steel material that can suppress the occurrence of cracks during cold forging, even when cold forging is performed without spheroidizing annealing. [Solution] The steel material of this embodiment has a chemical composition in mass%, consisting of C: 0.30-0.60%, Si: 0.01-0.10%, Mn: 0.30-2.00%, P: less than 0.050%, S: 0.001-0.050%, Al: 0.001-0.200%, N: less than 0.020%, Cr: 0.01-0.40%, O: 0.0030% or less, and the remainder being Fe and impurities. The total area ratio of ferrite and perlite is 90% or more, the area ratio of perlite is 40% or more, the average particle size dP of perlite grains is 10.0 to 40.0 μm, the average particle size dP of perlite grains and the standard deviation σP of perlite grain size satisfy equation (1), the average particle size dF of ferrite grains is 25.0 μm or less, and the difference between the hardness of ferrite and the hardness of perlite is 140 HV or less. σP / dP<0.80 (1)

High impact and penetration resistant lightweight composite panels include a foam core and an impact and penetration resistant protective layer on at least a portion of the lightweight composite panel. The foam core is a polymer and / or inorganic foam layer or sheet having first and second surfaces. A fiber mesh reinforced cementitious layer can cover one or both surfaces of the foam core. Example polymer foam cores include extruded polystyrene foam, expanded polystyrene foam, polyisocyanurate foam, or polyurethane foam. Example inorganic foam cores include perlite, ceramic microspheres, hollow glass spheres, glass foam, ceramic foam, expanded silica gel, porous wollastonite, urea-silicate foam, SiOC / SiC foam, refractory foam, and graphene. The impact and penetration resistant protective layer can be formed from polyurea, polyurethane, polyurea-polyurethane hybrid, polyaspartic, polymer-modified mineral binder, or hybrid resin-mineral composite. The protective layer can include a tightly woven scrim and / or a slip resistant filler embedded in the polymer.

This utility model relates to the field of fire-resistant infill door technology, specifically: a reinforced fireproof infill door, comprising a door body, the door body being composed of an outer protective layer, a first fireproof and heat-insulating layer, a reinforcing support layer, a second fireproof and heat-insulating layer, a buffer and shock-absorbing layer, and an inner protective layer. The outer protective layer is a steel plate with a fireproof coating; the first fireproof and heat-insulating layer is an aerogel composite fireproof felt; the reinforcing support layer is a honeycomb stainless steel skeleton structure; the second fireproof and heat-insulating layer is an expanded perlite fireproof board; the buffer and shock-absorbing layer is melamine foam; and the inner protective layer is a fireproof decorative board. In this utility model, through the synergistic effect of the six layers, the performance of the door body is comprehensively improved from multiple aspects such as fireproofing, heat insulation, structural support, and buffer and shock absorption. It can effectively block the spread of flames and heat for a long time during a fire, ensuring the structural integrity of the door body and buying valuable time for safe evacuation and fire rescue.

The invention belongs to the field of refractory materials, and provides a light heat-insulating refractory brick and a preparation method thereof. The light heat-insulating refractory brick comprises particles, mixed powder and an additional binding agent, the particles comprise, by weight, 10-15 parts of expanded vermiculite and 30-45 parts of closed cell perlite, and the mixed powder comprises, by weight, 15-25 parts of spherical quartz powder and 5-15 parts of perlite dust collecting powder. The raw materials comprise, by weight, 5-10 parts of waste silica brick powder, 5-10 parts of siliceous pyrophyllite powder, 10-15 parts of Jiaozhou white clay, 5-15 parts of sodium montmorillonite powder and 5-15 parts of limonite powder; the additional binding agent comprises the following raw materials in parts by weight: 3-5 parts of binding slurry and 3-5 parts of pre-gelatinized starch. The refractory brick disclosed by the invention is a light heat-insulating refractory brick which is small in volume density, small in heat conductivity coefficient and capable of meeting the requirement of heat insulation in a high-temperature kiln at 900-1000 DEG C in normal-temperature compressive strength.

This utility model discloses an expanded perlite preheating device, including an expansion furnace, a heat exchange cylinder, a storage tank, and a transfer silo. A feed hopper is located at the bottom of the expansion furnace, and a mixing and conveying pipe is located at the top of the expansion furnace. The mixing and conveying pipe passes through the heat exchange cylinder, which has a heat exchange channel with an inlet and an outlet. The heat exchange channel is not connected to the inner cavity of the heat exchange cylinder. The outlet of the storage tank is connected to the inlet of the heat exchange channel, and the outlet of the heat exchange channel is connected to the inlet of the transfer silo via a pipe. The outlet of the transfer silo adds material to the feed hopper via a pipe. The beneficial effects of this utility model are: the heat exchange channel within the heat exchange cylinder allows the perlite powder to exchange heat with the waste heat of the flue gas, thus preheating the perlite powder before it enters the expansion furnace, reducing energy consumption and improving the utilization rate of waste heat from the flue gas.

The invention discloses a site construction method for a perlite heat insulation layer of an LNG storage tank, and relates to the technical field of LNG storage tanks, and the site construction method comprises the following steps: step 1, increasing the number of perlite filling ports at the top of the tank, reducing a repose angle to 22 degrees when a connecting pipe is poured, and reducing gaps and uneven density; step 2, drying and replacing the perlite filler so as to reduce the moisture and oxygen content of the perlite filler; 3, the dried and replaced perlite filler is fed into perlite filling openings for filling, perlite is fed into a storage tank in a gas driving mode in the perlite filling process, in order to guarantee the online perlite filling effect and filling safety, the number of the filling openings is increased, the filling quality of expanded perlite is improved, and the production cost is reduced. The conditions of gaps and non-uniform density are reduced, so that the cold insulation effect is improved, the evaporation rate of the LNG storage tank is reduced, and the LNG in the storage tank is kept in an ideal storage state.

The application provides a method for preparing glassy single-cavity hollow particles by using perlite tailings, which can process the perlite tailings with a particle size less than 300 mesh into glassy single-cavity hollow particles with good roundness and high strength, so that the glassy single-cavity hollow particles can be used to make light aggregate thermal refractory materials, composite materials and filling materials of various engineering materials, etc., so that the waste resource of the perlite tailings with a particle size less than 300 mesh can be recycled, so as to avoid resource waste and ecological environment destruction. Moreover, the method for preparing glassy single-cavity hollow particles by using perlite tailings in the embodiment of the application adopts vertical roasting furnace bottom feeding, and realizes disaggregation and agglomeration of particles by adding triethanolamine, so that the perlite micro-powder raw material has good fluidity and dispersity, the agglomeration of the perlite micro-powder raw material with a particle size less than 300 mesh in the roasting process can be effectively prevented, and the perlite micro-powder raw material is prevented from being bonded on the side wall of the hearth to cause the hearth blockage.

The invention relates to an efficient and long-life inorganic dry powder coating with a self-humidifying function and a preparation method thereof, and belongs to the technical field of inorganic coatings. The inorganic dry powder coating comprises the following components in parts by weight: 30-40% of potassium silicate, 10% of expanded perlite, 10-25% of high-activity sepiolite nanofiber, 10% of calcined shell powder, 18-28% of quartz sand and 2-3% of an auxiliary agent. The preparation method comprises the following steps: firstly, treating a sepiolite raw material by virtue of a synergistic process of ultrasonic beam splitting and citric acid activation, so as to obtain high-activity sepiolite nanofibers which are fully dissociated, have nano hierarchical pore channels and are rich in hydrophilic groups; and compounding the high-activity sepiolite nanofiber with calcined shell powder, expanded perlite, quartz sand and potassium silicate to synergistically construct an inorganic coating system with optimized microstructure and efficient moisture absorption / liberation performance. The coating is simple in preparation process and environment-friendly, has excellent mechanical properties and self-humidity-regulating performance, still keeps an efficient humidity-regulating effect in a long-term service environment, and has outstanding long-acting stability.

The utility model provides a perlite plate drying device, which relates to the technical field of perlite plates, and comprises a workbench, a processing groove is arranged on the upper surface of the workbench, a conveying mechanism is arranged in the processing groove, a placing frame is movably arranged in the processing groove, the placing frame and the conveying mechanism are connected in a clamping manner, and the conveying mechanism is connected with the workbench in a clamping manner. And a plurality of raw materials are mounted at the upper end in the placement frame. Raw materials which are just pressed are respectively placed in the placing frames by a user to be stored, so that the situation that the raw materials are locally suspended or fractured due to vibration when the raw materials are transported by the user through a trolley is avoided, and then the raw materials are conveyed by the user through the cooperation of the first teeth and the second teeth. And a conveying belt is replaced to control the placement frame and the raw materials to move, so that the stability performance in the moving process of the placement frame is improved, and the microwave dryer can more stably and quickly dry the raw materials.

The application relates to the technical field of building materials, in particular to a cementing material for preparing an assembled wall body from multiple solid wastes and a preparation method; the cementing material is prepared from 25-55 parts of fly ash, 25-65 parts of blast furnace slag, 8-10 parts of lime, 1-5 parts of desulfurization gypsum, 3-6 parts of a first mixture, 2-5 parts of a second mixture and 5-8 parts of an alkali activator; the mass ratio of metakaolin, bentonite and superfine calcium carbonate in the first mixture is 3:2:1; the mass ratio of vermiculite, expanded perlite and glass beads in the second mixture is 2:2:1. The cementing material has a more stable microstructure through the synergistic activation of Ca and Na, and the addition of the first mixture and the second mixture. 2+ and Na + The C-S-H and C(N)-A-S-H gels form a three-dimensional network, needle-shaped ettringite crystals fill pores, and the anchoring effect of brucite phase is combined, so that the mechanical properties, such as strength and durability, of the material are significantly improved.

The application discloses a light formaldehyde-free flame-retardant board and a preparation method thereof, and relates to the technical field of boards. The flame-retardant board is prepared from formaldehyde-free components such as magnesium-based inorganic substances, plant fibers, hollow glass microbeads and modified expanded perlite. The modified expanded perlite is prepared by loading inorganic fillers on a carrier and combining with a flame retardant. The preparation process of the flame-retardant board comprises the following steps: step-by-step stirring and pulping, laying of reinforcing cloth, vacuum suction filtration forming, pre-solidification, maintenance and waterproof coating, and the like. The application effectively improves the brittleness of inorganic substrates, realizes the synergistic optimization of formaldehyde-free, light weight, flame-retardant performance and mechanical performance, is suitable for various scenes such as building decoration, and has good practical value.

The present application relates to the technical field of building materials, and proposes a light acoustic noise reduction board with aerogel composite, which comprises a panel, a core material and a back plate from top to bottom; the core material comprises aerogel felt and rock wool from top to bottom; the rock wool comprises the following raw materials in parts by weight: 55-65 parts of basalt, 10-15 parts of dolomite, 10-15 parts of quartz sand, 20-30 parts of slag, 4-8 parts of a binder and 3-8 parts of modified filler; the modified filler is obtained by modifying filler with bisilane oligomer and DL-411D aluminum ester coupling agent; the filler comprises one or both of fly ash hollow microsphere and expanded perlite; the core layer of the light acoustic noise reduction board with aerogel composite is composed of aerogel layer and rock wool, so that the heat preservation and noise reduction performance can be considered; the addition of the modified filler in the rock wool can improve the noise reduction effect of the rock wool.

The invention relates to the technical field of thermal insulation mortar processing, in particular to thermal insulation mortar and a processing method thereof. The method comprises the steps that end covers on the two sides of a material containing barrel are controlled to rotate, and a cambered surface stirring plate is driven to shovel, turn up and beat and press mortar raw materials at the bottom of the material containing barrel; continuously adding a small amount of filler and admixture into the material containing barrel for multiple times; the mortar obtained by the processing method of the thermal insulation mortar comprises the following raw materials: cement, lime, silicate, a filler, an admixture and water. The filler comprises perlite, vermiculite and expanded perlite; the horizontal cylindrical container is used for containing thermal insulation mortar raw materials, and the size of the stirring structure is increased, so that in the rotating process of the stirring container, the materials in the container can be fully shoveled and turned up, and light materials are pressed to the bottom of the container in the continuous rotating process; the light material and the thermal insulation mortar raw material are fully mixed, and the layering condition of the light material in the preparation process of the thermal insulation mortar is reduced.

The present application relates to the field of building materials, and more particularly to a perlite insulation board containing epoxy shell light balls and a preparation method thereof, the perlite insulation board is composed of expanded perlite, cement, epoxy shell light balls, glue powder, chopped fibers and water, wherein the epoxy shell light ball is a cage-shaped light microsphere formed by a plurality of hollow glass microspheres coated by epoxy resin glue, by pre-treating the hollow glass microspheres, the hollow glass microspheres are adhered together by the epoxy resin glue to form a cage-shaped mother particle of a plurality of hollow balls, then the expanded perlite powder, cement, glue powder and water are stirred to form a mortar, the epoxy shell light balls are added and stirred uniformly, and pouring, molding, drying and curing are performed to obtain the perlite insulation board, the present application can effectively reduce the bulk density of the insulation board and improve the heat insulation effect.

The utility model discloses a large -scale LNG storage tank dome structure, including outer tank wall, outer vault, inner tank wall and inner vault, and outer vault and inner vault are all the spherical shape of the convex upwards, and the lower extreme of outer vault is connected with the upper extreme of outer tank wall, and inner tank wall is located the inner side of outer tank wall, and the lower extreme of inner vault is connected with the upper extreme of inner tank wall, and outer vault, outer tank wall, inner vault and inner tank wall enclose the filling space, and the filling space is equipped with cold insulation material. The application reduces the height and gravity center of storage tank under the condition of same effective tank capacity, improves the operation and use condition of storage tank, makes storage tank more safe. Can improve LNG liquid level in operation, can reduce the storage tank shock isolation measure in construction. Realize the self -flow of perlite powder filling, self -compensation, guarantee the cold insulation quality of tank wall. Realize the good operation condition of cold insulation construction, cancel the construction of glass wool. Reduce the height of outer tank, reduce the construction material of outer tank.

The invention provides a heat-insulating ceramic tile prepared from aluminum oxide fiberboard waste. The heat-insulating ceramic tile is prepared from the following raw materials in parts by weight: 40-60 parts of modified aluminum oxide fiberboard waste, 15-25 parts of clay, 10-20 parts of expanded perlite, 5-15 parts of boehmite, 5-10 parts of hollow glass beads, 3-8 parts of a sintering aid, 1-3 parts of a plasticizer and 5-10 parts of water, the modified aluminum oxide fiberboard waste is waste aluminum oxide fiberboard broken particles treated by silica sol, and the particle size is 0.5-2 mm; the modified alumina fiberboard waste comprises the following chemical components: 82-84% of Al2O3, 14-17% of SiO2 and 1-3% of ignition loss. The preparation method disclosed by the invention is low in cost, feasible in process and environment-friendly, recycling of the waste aluminum oxide fiberboard is realized, and the prepared heat-insulating ceramic tile has the characteristics of low heat conductivity coefficient, high mechanical strength, good high-temperature resistance and the like, and can be widely applied to the fields of heat-insulating liners of industrial kilns and the like.

The application discloses a castable for hot-state repair of hot blast stove and application thereof, and the castable is composed of the following components in percentage by mass: fused mullite 50-60%, dense corundum powder 22-32%, alpha-Al2O3 micro powder 5-10%, submicron silicon micro powder 2-5%, perlite 4-7%, foaming agent 0.5-1%, and solidifying agent 0.4-1%; the mass of the above components is 100%, and 7-9% of the weight of the above components is added with silicon sol; wherein the perlite is closed perlite; and the foaming agent has a decomposition temperature of 110-160 DEG C. The castable has the advantages of high medium-high temperature strength, volume stability, effective resistance to hot blast erosion and corrosion, good heat preservation and heat insulation performance, reduced heat loss, safe and stable protection of the tube shell, and prolonged service life of the hot blast pipe network.

This invention relates to a method for preparing a perlite-based adsorbent material, the resulting material, and its applications. The preparation method includes: pretreating expanded perlite particles; mixing polyaluminum chloride and urea in water to obtain an impregnation solution; subjecting the pretreated perlite to vacuum impregnation followed by atmospheric pressure soaking, allowing the impregnation solution to enter the open pores; then subjecting it to staged heating treatment to decompose the urea and release alkaline components, promoting the confined transformation and immobilization of aluminum species in the open pores and pore openings of the perlite; subsequently washing, aging, and drying to obtain the perlite-based adsorbent material. The obtained material is a granular material with a particle size of 2–6 mm, containing an aluminum-based immobilization layer on its surface and within its open pores, and can be used for the treatment of phosphorus-containing water.

The present application relates to the technical field of molten steel heat preservation, in particular to a high-efficiency magnesia covering agent for molten steel heat preservation and a preparation method thereof, which comprises the following raw materials: composite modified magnesium oxide powder, low-melting-point glass powder, expanded perlite, yttrium oxide, sodium silicate, iron powder and hollow spinel microspheres.In the present application, the glass shell layer of the surface layer of the composite modified magnesium oxide powder can melt at a relatively low temperature, which not only effectively inhibits the hydration tendency of the magnesium oxide particles themselves, but also promotes the sintering connection between the particles in the initial stage of use to form a stable framework structure; the external nanometer carbon layer acts as an efficient barrier, which can not only slow down the erosion rate of the molten slag on the magnesium oxide core at high temperature, but also help to prevent the secondary oxidation of the molten steel due to its own reducing property; at the same time, the hollow spinel microspheres provide excellent and long-lasting high-temperature heat insulation performance due to their stable magnesium aluminate spinel shell layer and hollow structure.

The invention discloses a light building sound insulation material. The sound-insulation building material is prepared from the following components in parts by weight through pretreatment, mixing, molding and curing: 30 to 40 parts of Portland cement, 5 to 10 parts of metakaolin, 15 to 25 parts of modified expanded perlite, 8 to 15 parts of modified hollow glass beads, 10 to 18 parts of composite sound-insulation filler, 1 to 3 parts of water reducing agent, 0.2 to 0.8 part of defoaming agent, 0.5 to 1.5 parts of polypropylene fiber, 3 to 6 parts of silica fume, 0.1 to 0.3 part of hydroxypropyl methyl cellulose, 0.2 to 0.5 part of polysiloxane powder water repellent, 5 to 9 parts of rubber powder and 12 to 18 parts of water. The composite sound insulation filler is formed by compounding graphene oxide modified vermiculite powder, nano silicon dioxide and lignocellulose; the expanded perlite is modified by a silane coupling agent and butadiene styrene rubber emulsion, and the hollow glass beads are coated and cured by the butadiene styrene rubber emulsion.

The invention discloses low-thermal-conductivity lightweight concrete and a preparation method thereof. The low-thermal-conductivity lightweight concrete is prepared from the following components in parts by weight and does not contain auxiliaries: 95-125 parts of water; 100 to 534 parts of ceramsite; 0-514 parts of fine aggregate; 315 to 500 parts of cement; 35 to 42 parts of silica fume; 3.15 to 4.2 parts of a water reducing agent; the EPS particles are added according to the volume mixing amount of 0.08 m < 3 > / m < 3 >; the fine aggregate is perlite. According to the low-heat-conductivity lightweight concrete formula provided by the invention, collaborative optimization of three properties of light weight, high strength and low heat conductivity is realized, the problem of strength loss when aggregate is replaced by perlite can be solved, and the 28d strength is not greatly reduced while the dry density is reduced by 10-15% by optimizing a replacement object (preferentially replacing sand instead of coarse aggregate) of the perlite and a doping proportion.

The application discloses a light building sound insulation material, which is prepared from the following components by pretreatment, mixing, molding and curing: 30-40 parts of Portland cement, 5-10 parts of metakaolin, 15-25 parts of modified expanded perlite, 8-15 parts of modified hollow glass microbeads, 10-18 parts of composite sound insulation filler, 1-3 parts of water reducing agent, 0.2-0.8 parts of defoaming agent, 0.5-1.5 parts of polypropylene fiber, 3-6 parts of silica ash, 0.1-0.3 parts of hydroxypropyl methyl cellulose, 0.2-0.5 parts of polysiloxane powder hydrophobic agent, 5-9 parts of rubber powder and 12-18 parts of water. The composite sound insulation filler is compounded from graphene oxide modified vermiculite powder, nano silicon dioxide and lignocellulose; the expanded perlite is modified by a silane coupling agent and a butadiene-styrene rubber emulsion, and the hollow glass microbeads are coated and solidified by the butadiene-styrene rubber emulsion.

The application discloses a detection equipment for low-temperature liquid storage tank pearlite sinking and a detection method thereof. The equipment comprises a storage tank, an opening I is formed in the top of the storage tank, an air inlet pipeline is arranged in the storage tank and is mounted in the opening I, a gas injection mechanism is mounted at the input end of the air inlet pipeline, a horizontal mechanism is fixedly connected to the output end of the air inlet pipeline, and a bordering mechanism is arranged at the output end of the horizontal mechanism. Compared with the traditional detection method, the pearlite filling opening does not need to be opened, the flammable and explosive medium is prevented from being discharged into the atmosphere, the air and moisture are prevented from entering the tank, the cost is reduced, the safety guarantee is improved, the driving force generated by the nitrogen gas with pressure is utilized to transport the pearlite above the lowest height line of the pearlite to the outside, if the overflowed pearlite is detected at the outlet, the height of the pearlite meets the cold preservation height of the storage tank, otherwise, the pearlite needs to be filled.

The invention provides a tundish covering agent with controllable high-temperature viscosity and a preparation method and application thereof.The tundish covering agent is composed of a base material and an auxiliary material, the base material comprises quick lime and perlite ore, and the auxiliary material is a high-temperature viscosity regulating agent comprising quartz ore and feldspar minerals; the preparation method comprises the following steps: respectively crushing and screening quick lime, perlite minerals, quartz minerals and feldspar minerals to obtain quick lime granules, perlite granules, quartz granules and feldspar mineral granules; the quick lime granules, the perlite granules, the quartz granules and the feldspar mineral granules are proportioned, uniformly mixed and dried, and the tundish covering agent with the controllable high-temperature viscosity is obtained. The tundish covering agent prepared by the invention has the characteristics of good heat preservation and covering effects, low cost, simple preparation, adjustable viscosity, wide application range and the like.

The application belongs to the technical field of building ceramics, and particularly discloses a low-temperature fast-firing ceramic tile based on industrial solid waste and a preparation method thereof. The raw material components of the low-temperature fast-firing ceramic tile include low-temperature ceramic raw materials and industrial solid waste raw materials, wherein the low-temperature ceramic raw materials include hyaline augite, diopside, perlite, spodumene and dolomite, and the industrial solid waste raw materials include red mud, manganese slag and non-metal tailings. By adding a certain amount of low-temperature ceramic raw materials into the industrial solid waste raw materials, on the one hand, the high-hardness wollastonite, diopside and perlite contained in the low-temperature ceramic raw materials are utilized to improve the compressive strength and bending strength of the low-temperature fast-firing ceramic tile; on the other hand, the low-temperature ceramic raw materials and the industrial solid waste raw materials have similar or compatible properties, so that the uniformity and fluidity of the raw materials are improved, thereby realizing that the ceramic tile prepared under the condition of low-temperature fast firing has good mechanical properties, durability and aesthetic properties, and is suitable for various building decorations.

The application provides a preparation method of prefabricated new UHPC decorative hanging plate and application thereof, and belongs to the technical field of super high performance concrete products, and the preparation method comprises the following steps: S1, uniformly mixing cement 60-65 parts, modified perlite composite powder 4-6 parts, gravel 4-6 parts, natural sand 25-30 parts, water reducing agent 1.4-1.8 parts, defoaming agent 0.08-0.1 parts and water 17-22 parts according to weight parts, to obtain initial mixture; S2, putting steel wire short fibers 2-3 parts and styrene liquid core glass fibers 3-4 parts into the initial mixture obtained in S1 according to weight parts, uniformly mixing, to obtain UHPC material; S3, vibrating and pouring the UHPC material, vibrating for 26-30s at the same position, standard curing molding, after curing, demolding, and the prefabricated new UHPC decorative hanging plate is obtained. The application improves the frost resistance of the concrete while ensuring excellent crack resistance, and ensures that the prefabricated new UHPC decorative hanging plate can maintain excellent decorative effect for a longer time.

The invention relates to the technical field of building decoration materials, in particular to a heat insulation and sound absorption ceiling which is composed of a composite base material, a modified heat insulation filler, a gradient sound absorption filler, a composite binder and a functional additive. The composite base material comprises gypsum powder and glass beads; the modified heat insulation filler is a compound of expanded perlite modified by a silane coupling agent and aerogel; the gradient sound absorption filler comprises basalt fibers and polyurethane foam particles; the composite binder comprises epoxy resin and water-based acrylate; the functional auxiliary agent comprises polycarboxylate, polyamide wax and organosilane. Through scientific matching of the composite base material, the modified heat insulation filler and the gradient sound absorption filler, a complementary performance system is constructed, the heat insulation effect is enhanced, the sound absorption frequency band is widened, the limitation that a traditional product is single, outstanding in performance and insufficient in comprehensive performance is broken through, and the dual requirements of various buildings for heat insulation and acoustic environments can be fully met.

An embalming powder comprising perlite, preferably two perlite compounds. The first perlite preferably has average sieve size of less than or equal to 0.1 microns, preferably less than 0.05, and the s