57results about "Ceramicware" patented technology

The invention relates to a fluid construction mixture comprising a sludge or tailing material (such as a dredged material), a binder, a binder retarding agent, optionally one or more other ingredients. The invention further relates to a method for preparing a solid construction material and to the use of construction material in infrastructural projects.

The invention provides a method for preparing vegetation form porous concrete, adopting the 'pre-coating' technology, a slurry body with specific compositions coats coarse aggregates to form a sphere with a relatively uniform particle diameter, based on the physical coacervation of the sphere and the agglutination of the surface slurry body of the sphere; and the porous and macroporous structure, the cementation between solid phases of which is good and gas phases of which are communicated, is formed. The method comprises the concrete preparation steps that: (1) the fluidity and the viscosity range of the slurry body used to coat the aggregates are determined, and the mixing ratio is worked out by an absolute volume method; (2) the four-step stirring working procedure and the shaping model of the combination of the vibration and the pressuring are adopted; and (3) hole spaces are subjected to alkali-sealing treatment. The invention solves the difficult problems existing in the prior method that because of the downflow of the slurry body, the distribution of the pore spaces is not uniform and the discontinuous pore spaces increase, and the alkalinity in concrete pore spaces is relatively high, which are adverse to the growth of plants. When the vegetation form porous concrete prepared by the method of the invention is applied to road shoulder separator inserts, construction roofs, protection banks and protection slopes and parking lots of a highway, and good landscape effects and ecological environmental protection significance are achieved.

Syntactic foams and thermal insulation as described containing epoxy resin, hollow microspheres, and dried sol-gel or fumed metal oxide for forming a thermal insulating layer on a substrate such as a pipeline. Methods for forming such thermal insulating layers are also described, which can include formulating with blowing agents for forming closed cells in the finished insulating foam.

The invention provides plant growth type porous concrete suitable for plant growth. The concrete comprises a porous concrete body with thickness and mixed fine loam covering the surface layer of the porous concrete body. The porous concrete body comprises components by volume density as follows: 150-325 kg/m<3> of cement, 1,495-1,550 kg/m<3> of ceramsite, 40-86 kg/m<3> of fly ash, 10-12 kg/m<3> oflimestone powder, 100-120 kg/m<3> of fine loam, 2-3 kg/m<3> of plant ash, 15-30 kg/m<3> of rice husk charcoal, 2.5-4 kg/m<3> of a water reducing agent, 10-20 kg/m<3> of EVA latex powder, 17-40 kg/m<3> of butadiene-styrene rubber powder, 13-23 kg/m<3> of a polyacrylate emulsion, 20-30 kg/m<3> of organic compost, 15-20 kg/m<3> of vermiculite, 2-3 kg/m<3> of seaweed meal, 0.5-0.7 kg/m<3> of tea seedmeal, 2-3 kg/m<3> of neem cakes, 0.7-1.2 kg/m<3> of polyacrylamide, 0.5-1 kg/m<3> of ferrous sulfate, 3-4 kg/m<3> of modified loofah fiber, 0.8-1 kg/m<3> of an organic silicon defoamer and 60-90 kg/m<3> of water.

The invention relates to a water permeable brick purifying rainwater. The water permeable brick is divided into an upper layer and a lower layer, wherein the upper layer is a surface layer; the lowerlayer is a base layer; and a thickness ratio of the surface layer to the base layer is 1:(5-6). The invention further relates to a method of preparing the water permeable brick purifying the rainwater. Ceramsite in the base layer of the water permeable brick can absorb suspended matter and organic matter (VOCs (volatile organic compounds)); the reduction of a water permeable rate of the water permeable brick due to gap obstruction after long-term usage is avoided; the ceramsite after zeolitization modification can absorb a small quantity of heavy metals in the rainwater; and pollution of ground water is avoided.

The invention discloses a calcium carbonate compound type flame-retardant foaming agent. The technical scheme of the foaming agent is characterized in that the calcium carbonate compound type flame-retardant foaming agent comprises light calcium carbonate, attapulgite clay powder having an air purification function, hydrogen peroxide, magnesium hydrate, sodium alcohol ether sulphate, superfine polyving akohol powder, dimethicone and water. Calcium carbonate compound type flame retardant foaming agent paste ingredients are stirred into a paste, and then the ingredients of the calcium carbonate compound type flame-retardant foaming agent are stirred into a finished product of the calcium carbonate compound type flame-retardant foaming agent. After the calcium carbonate compound type flame retardant foaming agent is stirred with water at a high speed, porous foamed slurry is formed and can rapidly isolate an inflammable material from being contacted with air, and the purposes of inflaming retarding and extinguishment are achieved; a product produced with the calcium carbonate compound type flame-retardant foaming agent not only has the effects of inflaming retarding, heat preservation, thermal insulation and sound insulation, but also has the air purification function; and the calcium carbonate compound type flame-retardant foaming agent is suitable for producing inflaming retarding and fire-extinguishing products, lightweight boards, lightweight walls and noise reduction products.

The invention discloses a comprehensive utilization treating method for aeroconcrete waste materials. Firstly, drying the aeroconcrete waste materials, then mixing the aeroconcrete waste material with anhydrite or dihydrate gypsum according to a certain mass percentage ratio after calcining, grinding the mixture in a ball mill to prepare an expansive agent, evenly mixing the expansive agent with silicate cement to prepare expansive cement, calcining the aeroconcrete waste materials in high temperature, grinding the waste materials in the ball mill into a powder lot with specific surface area of 300-400g/cm2, thereby obtaining gelled materials, using the powderlot quantity of 50-150kg per cubic meter as fillers to replace lime or dense concrete filled with lime. The treating method of the invention has the advantages of simple technology, no secondary pollution, being applicable for commercial process, making more full use of aeroconcrete waste materials, and changing waste into valuable.

The invention provides an environment-friendly ceramic tile. The environment-friendly ceramic tile is prepared from components in parts by weight as follows: 60-80 parts of diatomaceous earth, 5-10 parts of pyrophyllite, 1-5 parts of ball clay, 3-9 parts of spodumene, 5-10 parts of albite and 2-5 parts of talc. The environment-friendly ceramic tile is light in mass and high in structural strength and has functions of dehumidification, deodorization, indoor air purification and the like; with the adoption of a manufacturing method of the environment-friendly ceramic tile, the best structural strength and the best cellular structure of the ceramic tile can be guaranteed.

The present invention relates to an air-entrained concrete block and its manufacturing method, comprising cement, lime, polypropylene fiber and other components including one of fly ash, sand, gypsum, aluminum powder and waste slurry species or several. By optimizing the ingredients and process parameters of air-entrained concrete, the obtained air-entrained concrete blocks have the advantages of high strength, low shrinkage and crack prevention. At the same time, modified polypropylene fibers can improve the tensile strength of concrete structural materials, Impact strength, reduce the drying shrinkage value of concrete structural materials and prevent the formation and expansion of cracks during cement curing.

The invention relates to the field of porous materials, and particularly discloses a high-thermal-conductivity pure porous silicon carbide material, and a preparation method and application thereof. The porous silicon carbide material is constructed by a three-dimensionally connected pure silicon carbide network and a three-dimensionally connected pore network in an interfingering mode, wherein the silicon carbide network is composed of silicon carbide crystal grains connected through grain boundaries to ensure high thermal conductivity of the porous silicon carbide material. By adopting the structure design and preparation method of the high-thermal-conductivity pure porous silicon carbide material, the high-thermal-conductivity pure porous silicon carbide material with adjustable pore size and porosity height can be obtained. The pure porous silicon carbide material is a novel porous material with simple preparation technology and high efficiency, has a wide range of application prospects, and can be used in the following fields such as composite material reinforcements, heat dissipation materials, electromagnetic shielding materials, wave-absorbing materials, filters, biologicalmaterials, catalytic carrier materials, electrode materials, and sound absorbing/noise reducing materials.

The invention discloses an air-added brick and a preparation method thereof. The preparation method comprises the following steps: mixing portland cement, fly ash, gypsum, aluminum powder paste, silicon dioxide, magnesium oxide and water to form slurry M; pouring the slurry M and carrying out steam pre-oxidization molding to obtain an air-added brick blank N; cutting the air-added brick blank N to form an air-added brick block; carrying out steam curing on the air-added brick block to obtain the air-added brick. The prepared air-added brick has excellent mechanical strength through the synergistic effect of all the raw materials; meanwhile, the method for preparing the air-added brick is simple and the raw materials are easy to obtain.

The invention provides a foaming-ceramic heat insulating board. The foaming-ceramic heat insulating board is characterized by being prepared from, by weight, 25-30 parts of fusible clay, 6-12 parts of diatomaceous earth, 6-12 parts of alkalifeldspar, 5-10 parts of dolomite, 2-5 parts of starch, 6-12 parts of nano-scale silica fume, 6-12 parts of cement, 6-12 parts of lime, 1-2 parts of anionic surfactant, 0.5-3 parts of foaming agent, 1-4 parts of reinforcing elements, 0.1-0.5 part of triton X-100 and 100-190 parts of water; the reinforcing elements are titanium-system reinforcements or aluminum-system reinforcements or boron-system reinforcements or silicon-system reinforcements. The foaming-ceramic heat insulating board is low in heat conductivity coefficient, high in breaking strength, low in density and not prone to water permeation, and can be widely used for wall materials, heat insulating materials and underground engineering materials. As the triton X-100, the anionic surfactant and the starch are combined to be used, the porosity rate of the board is increased, and bubbles can be more evenly distributed.

The invention discloses a high-reflecting, heat-insulating and heat-preservation concrete gas-filled brick. The concrete gas-filled brick is characterized in that calcium carbide and sodium rosinate are used as composite air-entraining agents, a layer of a polyester coats the surface so that polyester-coated calcium carbide is obtained, hollow glass beads are subjected to cleaning oil removal, surface roughening and coupling to form surface-coupled glass beads, titanium dioxide and cerium oxide are deposited on the surfaces of the hollow glass beads through a hydrothermal method so that the modified hollow glass beads are obtained, the raw materials are mixed, the mixture is heated through steam to form a casting material, the casting material is poured into a mold, and the model is subjected to maintenance at the constant temperature and constant humidity, blank repair and steam maintenance at a high temperature so that the high-reflecting, heat-insulating and heat-preservation concrete gas-filled brick is obtained. A preparation method of the concrete gas-filled brick has simple processes and realizes a low cost. The concrete gas-filled brick has good strength, low thermal conductivity and good anti-cracking effects, saves energy, is environmentally friendly and satisfies the needs of the construction project and the requirements of environmental protection.

The invention discloses a tannery sludge and coal gangue treatment technology which comprises the steps of evenly mixing and stirring tannery sludge, coal gangue, cement, kaolin and sodium tetraborate which are evenly ball milled according to the mass ratio of 1 to 1 to 4 to 1 to1; then adding water to stir into slurry; utilizing sodium dodecyl sulfate as a foaming agent, pouring the stirred foam concrete into a mould, then conserving for 3 to 5 days in normal temperature in humidity larger than 80% and then demoulding; drying a demoulded product under the condition of 105+/-0.5 DEG C, putting into an electric furnace to be kept warm for 20 to 40min in 110 DEG C, then heating to 600 DEG C at 15 DEG C/min, keeping warm for 30 to 60min, then heating to 1100 to 1200 DEG C at 15 DEG C/min and sintering for 30 to 60min; slowly cooling to room temperature after sintering finishes and manufacturing into a porous ceramic tile.

The invention discloses a silicon carbide foamed ceramic, and a liquid metal filter produced therefrom. The silicon carbide foamed ceramic is produced through the following steps: performing a hydrosilylation reaction on polycarbosilane and vinyl group-containing silane to synthesize thermosetting polycarbosilane, performing impregnation by using organic foam as a template to obtain an organic foam preform containing the thermosetting polycarbosilane, performing heat treatment on the foam preform to achieve solvent removal and polycarbosilane cross-linking and solidifying, and finally carryingout high-temperature pyrolysis to obtain the silicon carbide foamed ceramic. The silicon carbide foamed ceramic has characteristics of high strength, excellent temperature resistance, excellent thermal shock resistance and excellent heat conduction performance, and has great application values in the filtration of molten metal.

The invention discloses a method for preparing cement asphalt (CA) mortar for China railway track system (CRTS) II slab ballastless tracks, which comprises the following steps of: (1) mixing cement with fine sand, an expanding agent and aluminum powder according to proportion to prepare dry CA mortar powder; and (2) sequentially adding a poly carboxylic acid serving as a high-performance water reducing agent, an antifoaming agent and silica sol into water for uniform stirring, adding the dry CA mortar powder for uniform stirring, and adding asphalt emulsion for uniform stirring to obtain the CA mortar for the CRTS II slab ballastless tracks. The method has the advantages of: (1) avoiding cement particles competitively absorbing an emulsifier in the asphalt emulsion, and preventing the asphalt emulsion in the CA mortar from being demulsified to cause bleeding; and (2) reducing the using amount of the asphalt emulsion and the using amount of the water on the basis of ensuring flowability, and strengthening the strength of the CA mortar on the basis of meeting an elastic modulus of the CA mortar.

The invention discloses a biological active ceramic bracket with a nano/micron hierarchical pore structure and a preparation method of the biological active ceramic bracket. The preparation method includes the following steps that (1) monodisperse microspheres with the particle size height capable of being controlled are prepared through a soap-free emulsion method; (2) the microspheres are evenlydispersed in ceramic paste, and the ceramic paste with good printability is obtained; (3) the biological active ceramic bracket with the micron order pore size is printed through a 3D printing technology; (4) the printed bracket is sintered, and the biological active ceramic bracket with the nano/micron hierarchical pore structure is obtained. According to the biological active ceramic bracket with the nano/micron hierarchical pore structure and the preparation method of the biological active ceramic bracket, pore-formingtemplates with the particle size capable of being controlled are evenlydispersed in the printing paste, the sintering characteristics of ceramic and the characteristics of precise control of the micropore structure through the 3D printing technology, the biological active ceramic bracket with the nano/micron hierarchical pore structure is successfully and precisely constructed, and the difficult problem that existing 3D printing technologies cannot accurately controlthe nanoscale pore structure is solved.

The invention provides a water-saving light concrete method for restraining water surface evaporation. In the method, light concrete slabs or blocks which can float on water are partially or completely placed on the water surface. The prefabricated water-saving light concrete slabs or blocks can resist wind, seepage, freezing and ageing, the thickness of the light concrete slabs or blocks is within 3 to 9cm, and the length and width are respectively controlled within 0.5 to 3m; when in prefabrication, steel bars are added and exposed to form ring shapes, all the light concrete slabs or blocks are connected by ropes, and the connection ropes are fixed on vertical piles beside a water pool (a reservoir) or in water. The invention belongs to a physical covering method, has the advantages of simple operation, low price and low maintenance cost, can resist wind, seepage, freezing and ageing, and is particularly applicable to evaporation reducing and water saving for the water surfaces of the water pool, the reservoir, a lake and the like.

The invention belongs to the technical field of building materials, and particularly relates to an autoclaved aerated concrete block and a preparation method thereof. Waste wind power blade fibers used in the invention can inhibit and reduce the dry shrinkage of the autoclaved aerated concrete block, and avoid the problems of masonry cracking and the like caused by water absorption and large dry shrinkage of the block in the actual use process; and the characteristics of small particle size and high specific surface area of the waste wind power blade powder are fully utilized, the waste wind power blade powder is used for replacing fly ash, slag and other raw materials in conventional building block production raw materials, the micro aggregate filling effect of the waste wind power blade powder is exerted, and the mechanical property of the building block is enhanced.

The invention discloses a fireproof door core. The fireproof door core is prepared from, by weight, 7-12 parts of light calcined magnesia, 20-35 parts of expanded perlite, 15-23 parts of bentonite, 13-21 parts of desulphurization gypsum, 4-8 parts of chopped fiber, 1-2 parts of foaming agent, 11-16 parts of fly ash, 4-8 parts of lignin, 0.5-1 part of expansible graphite, 0.2-0.4 part of zinc borate, 2-7 parts of modifier and an appropriate amount of water. The fireproof door core has the advantages of being excellent in fireproof performance, good in heat preservation performance, environmentally friendly and small in volume, and not generating toxic and harmful gas under fire.

The invention aims to solve the conventional problems of lightweight refractory materials in the prior art, provides a method for preparing magnesia-based lightweight aggregates by a foaming method, and belongs to the technical field of refractory materials. The method comprises the steps: mixing oleate and an appropriate amount of water, stirring and foaming to obtain foams; adding calcium stearate into the foams to produce uniform and stable foams; adding water into magnesia powder, mixing evenly to obtain slurry, and then mixing the slurry with the foams to obtain foamed slurry; and pouringthe foamed slurry into a mold, molding, curing after molding, demolding, then drying, and then sintering a green body at high temperature. With oleate as a foaming agent, calcium stearate as a foaming stabilizer and magnesia powder as the slurry, the magnesia-based lightweight aggregates are prepared. The method can produce the lightweight aggregates with different pore sizes, and the lightweightaggregates have the advantages of high strength, high use temperature, strong corrosion resistance to reducing gas, and excellent corrosion resistance to alkali vapor, and are suitable for use in alkaline environments.

The invention discloses a preparation method of a pyrite tailing ceramsite proppant. Pyrite tailings are subjected to calcination pretreatment and petroleum drilling effluent steeping, the composition and content of raw materials from which ceramsite is prepared are optimized, the physical and chemical performance of the ceramsite is adjusted, and then the pyrite tailing ceramsite proppant with high pressure resistance and low density is prepared.