85results about How to "High permeability coefficient" patented technology

The invention discloses a novel ecological permeable concrete material and a preparation method thereof. The concrete material has the advantages of high strength, high permeable coefficient, adjustable porosity, shorter curing time, simple preparation method and the like, has a very high application value in a sponge city building process, and has important significance to the realization of continuous development of permeable concrete and the maintenance of underground water ecological balance. The novel ecological permeable concrete material is prepared from the following specific components in parts by mass: 400 to 500 parts of natural aggregate, 75 to 92 parts of ordinary Portland cement, 4 to 7 parts of desulfurized gypsum, 4 to 10 parts of silica fume, 0.5 to 1.5 parts of water reducing agent, 22 to 36 parts of water, 4 to 12 parts of adhesive polymer and 0.5 to 1.2 parts of rapid hardening early strength agent.

The invention discloses a multi-pore high-strength sintering permeable floor brick. The multi-pore high-strength sintering permeable floor brick is prepared from, by weight, 40-43 parts of sewage plant sludge, 6-7 parts of rice hulls, 4-5 parts of potassium feldspar powder, 10-12 parts of fly ash, 10-12 parts of water glass, 29-31 parts of basalt rubble, 5-6 parts of sawdust, 9-11 parts of mesoporous silica, 0.8-1 part of a silane coupling agent kh560, 3-4 parts of polyvinyl alcohol fibers, 7-9 parts of blast furnace slag and 2-3 parts of chemical waste gypsum powder. According to the multi-pore high-strength sintering permeable floor brick, the mesoporous silica, the sawdust and the polyvinyl alcohol fibers are added in preparation of the brick, and a composite through hole structure can be formed through sintering molding after technological modification; in addition, multiple pores distributed densely are obtained by reasonably regulating the particle size of mixed aggregates; meanwhile, the product is high in compressive strength, firm, durable and high in permeable coefficient.

The invention provides cement polymer based high-temperature concrete permeable pavement bricks and a manufacturing method thereof and belongs to the field of road surface pavement materials. Each cement polymer based high-temperature concrete permeable pavement brick is prepared from a permeable base layer and a permeable surface layer, wherein the permeable base layer is prepared from 290 to 345 parts of cement A, 0 to 6 parts of ultra-light aggregate A, 1630 to 1765 parts of coarse aggregate, 255 to 290 parts of sand, 0.50 to 0.85 part of polymer emulsion A, 0.35 to 0.50 part of an interface reinforcing agent A and 0 to 0.65 part of a loose soil constriction resisting agent; the permeable surface layer is prepared from 390 to 425 parts of cement B, 0 to 2 parts of ultra-light aggregate B, 0 to 7.5 parts of micro-pore fine aggregate, 1350 to 1400 parts of wear-resisting fine aggregate, 0.65 to 0.85 part of polymer emulsion B, 0.65 to 0.95 part of an interface reinforcing agent B, 8 to 13 parts of a deicer salt scaling resisting and alkali adsorption agent and 15 to 17 parts of pigment. According to the cement polymer based high-temperature concrete permeable pavement bricks, all technological performances of the permeable bricks are comprehensively improved.

The invention discloses high-performance vegetation pervious concrete which is prepared from cement, gypsum, auxiliary binding materials, aggregates, additives, fiber and water. The cement is a mixture of ordinary Portland cement and low-alkalinity sulphoaluminosilicate cement; the auxiliary binding material is a mixture of coal ash, slag and silica fume, and the additives include a mixture of a water reducer, an early strength agent, a redispersible powder and a thickening agent. The high-performance vegetation pervious concrete has the advantages of being high in connection porosity and permeation coefficient, low in pH value, good in mechanical property and durability and the like.

The invention discloses a permeable ceramic brick manufactured from rare earth tailings. The permeable ceramic brick is manufactured by wrapping binding coarse rare-earth tailing particles with a wrapping material. The permeable ceramic brick is manufactured from the following raw materials: 65-80 wt% of coarse rare-earth tailings, 3-10wt% of fine rare-earth tailings, 2-6wt% of clay and 10-20wt% of flux, wherein the mixture of the fine rare-earth tailings, the clay and the flux functions as the wrapping material. In addition, the invention further discloses a manufacturing method of the permeable ceramic brick. The waste rear-earth resources are recycled, and the permeable ceramic brick with good water permeability and water retention and high strength is obtained, thus the purpose of protecting environment can be achieved, and the development of industry, regional economic and urbanization can be promoted.

The invention provides a recycled aggregate water-permeable brick and a production method thereof. The recycled aggregate water-permeable brick comprises a base layer, and the base layer comprises, byweight, 95-105 parts of recycled aggregates, 14-16 parts of cement, 14-16 parts of fly ash and 0.22-0.32 part of a water reducer. The production method comprises the following steps: uniformly mixingthe cement, the fly ash and the water reducer, adding water, performing stirring, and adding wetted aggregates; adding the obtained mixture into a mold, and carrying out vibration extrusion molding under 1.5-3 MPa for 15-30 s; and demolding the obtained water-permeable brick, standing the water-permeable brick for 2 h, transferring the water-permeable brick into an autoclave, and curing the water-permeable brick under 0.8-1 MPa at 173-185 DEG C for 6-10 h. The aggregates are recycled aggregates, the use amount of the cement is small, the water-permeable brick has a high compressive strength and a high water permeability, the molding process is quick and simple, and has a low cost, and the environmental pollution can be effectively reduced, so the recycled aggregate water-permeable brick is suitable for large-scale industrial production.

The invention relates to an inorganic material adhesive comprising: a first activator, a second activator, a reduction decreasing agent, an efflorescence prevention agent, an inorganic pigment and fibers. The mass of the first activator is 1-3% of that of the second activator. The mass of the reduction decreasing agent is 0.5-1.5% of that of the second activator. The mass of the efflorescence prevention agent is 3-6% of that of the second activator. The mass of the inorganic pigment is 10-20% of that of the second activator. The mass of the fibers is 1-2.5% of that of the second activator. The invention also relates to a preparation method of the inorganic material adhesive. The inorganic material adhesive, when being used in construction of a water permeable pavement, enables the pavement to have high water permeation coefficient, high water retention, high strength, high durability and no environment pollution, wherein the water permeation coefficient is 2.6-6.3 mm/s, the water retention rate is 100-160 l/m<3>, compressive strength is 20-55 MPa and flexural strength is 2.5-5.8 MPa. The preparation method avoids dust pollution and is lower than 5 mg/Nm<3> in dust emission. The inorganic material adhesive has stable components and is lower than 0.05% in component fluctuation, so that the system has high operation rate being more than 98%.

The invention discloses a high-barrier-property pesticide packing bottle and preparation thereof. The high-barrier-property pesticide packing bottle comprises a barrier layer, an adhesion layer and abase layer which adhere to one another successively from inside to outside, the barrier layer and the base layer are separately attached to the two sides of the adhesion layer, and the thickness ratioof the barrier layer, the adhesion layer and the base layer is 1: 0.5-0.8: 2-2.5. The preparation method comprises the following steps: S1, raw material fusing; S2, double-screw extrusion forming; S3, blow molding; and S4, blow molding of the barrier layer. The high-barrier-property pesticide packing bottle has excellent mechanical property and pesticide permeation resistance, and has the advantage of good barrier property. In addition, a pesticide packing bottle prepared by the preparation method is formed integrally, the mechanical property and the pesticide permeation resistance are excellent, and the barrier property is good.

The invention discloses water-permeable concrete, which is prepared from the following components in parts by mass: 300 to 500 parts of cement, 1,500 to 1,700 parts of aggregate, 9 to 15 parts of water reducing agent, 15 to 50 parts of enhancer and 90 to 125 pars of water, wherein the enhancer is prepared from silica fume, ultrafine powder and a nano material TiO2; in percentage by mass, in the enhancer, alumina accounts for 0.92 percent, calcia accounts for 0.14 percent, iron oxide accounts for 0.27 percent, magnesia accounts for 1.59 percent and silica accounts for 93.11 percent; the iglossis 3.18 percent. The water-permeable concrete prepared by the preparation method is high in water permeability coefficient and high in compressive strength, and meets a high-strength requirement of the construction of a road surface.

The invention discloses a high-property water permeation concrete cementing agent. The high-property water permeation concrete cementing agent is prepared from the following raw materials in percentage by mass: 68 to 72% of activated silicon dioxide powder, 18 to 22% of interface modifier, 7 to 10% of water reducing agent, 2 to 4% of thickening time control agent, and 0 to 2% of thickener. The high-property water permeation concrete cementing agent has the advantages that by blending the cementing agent into water permeation concrete, the construction operation time can be obviously prolonged; the compressive and break strengths are improved, and the water permeation coefficient is increased.

The invention relates to anti-corrosion pervious concrete for highway engineering, and belongs to the technical field of building materials. The pervious concrete for highway engineering consists of the following materials in percentage by weight: 20-25% of gelled materials, 1.0-1.2% of calcium-rich powder, 5.0-6.0% of slag aggregate, 20-25% of steel slag aggregates, 2.5-3.2% of additives and the balanced coarse aggregates. On the premise that porosity and permeation coefficient of the anti-corrosion pervious concrete are obviously higher than those of the conventional pervious concrete, and compressive strength of the anti-corrosion pervious concrete is still higher than that of the conventional pervious concrete. Anti-corrosion performance is high, and the service life is prolonged obviously.

The invention discloses a novel anti-crack sinter-free energy-saving type water-permeable tile. The tile is prepared from, by weight, 50-53 parts of desert sand, 4-5 parts of thermoplastic phenolic resin, 0.6-0.7 part of urotropin, 0.2-0.22 part of calcium stearate, an appropriate volume of water, 42-45 parts of Portland cement with the mark number of 42.5, 5-6 parts of coal ash, 2-3 parts of natural rubber paste, 2-2.5 parts of carboxymethylcellulose, 43-47 parts of vanadiumore tailings, 3-4 parts of glass fiber, 1-1.2 parts of Twain 80, 22-24 parts of anti-crack fiber, 88-93 parts of lightweight shale ceramsite, 22-25 parts of kaolin and 0.7-0.8 part of cellulose ether. Anti-crack fiber is added to the surface layer material and the bottom layer material; with the aid of the scientific and reasonable component proportion, the water-permeable tile prepared through the sinter-free process has excellent anti-crack performance, is firm, durable and high in water-permeable coefficient, and is environmentally friendly, free of pollution and capable of saving energy in the production process.

A water-based liquid reinforcing material for high-performance water-permeable concrete is disclosed. Raw materials of the water-based liquid reinforcing material include, by weight, 5-20 parts of powder reinforcing polymer, 35-50 parts of nanometer silica fume, 10-20 parts of a water reducing agent, 3-5 parts of a viscosity adjusting agent, 0.2-2 parts of a defoamer, 0.1-2 parts of a retarder, 0.5-1 part of a rheological agent and 10-15 parts of an early strength agent. A preparation method of the water-based liquid reinforcing material is also disclosed.

The invention discloses pervious concrete. The pervious concrete is prepared from the following raw materials according to weight: 320kg/m<3>-460kg/m<3> of cement, 80kg/m<3>-220kg/m<3> of desulphurization ash, 1170kg/m<3>-1300kg/m<3> of pebbles, 0kg/m<3>-100kg/m<3> of sand, 152kg/m<3>-190kg/m<3> of water and 1.5kg/m<3>-1.7 kg/m<3> of a water reducing agent. The pervious concrete has the beneficial effects that as lots of desulphurization ash is used, the problem that lots of land is occupied by accumulated desulphurization ash is solved; the pervious concrete has excellent performance and low cost; and the resource comprehensive utilization of the desulphurization ash is realized.

The invention discloses a method for preparing water permeable bricks based on coal gangue, belonging to the field of water permeable bricks. According to the method, the coal gangue having adhesive property is melted at the high temperature in the carbon dioxide atmosphere; under the action of high temperature, the formed sodium metaaluminate reacts with carbon dioxide, so that sodium hydrogen carbonate is produced; sodium hydrogen carbonate is further decomposed by heat so as to produce sodium carbonate, and pore-forming is carried out, so that the porosity is increased; furthermore, the adsorbed lignin, cellulose and the like are thermally decomposed, so that the pores are protected; then, particles and cryolite powder are added, mixed and calcined, and the melting point of the mixtureis lowered by means of the cryolite powder; in a calcining process, a serpentine structure is destroyed, and magnesium-like olivine is formed, so that the porosity is increased, and the strength is improved; furthermore, silica in the calcined product reacts with the sodium carbonate so as to form sodium silicate, so that the bonding strength between the substances is improved, and the compressionresistance and the breaking strength are improved. The method solves the problems of high production cost and low compressive strength of the existing water permeable bricks.

The invention discloses a compressive permeable brick of basalt fiber composite polyvinyl chloride with an improved sound absorption effect. The compressive permeable brick is prepared from the following raw materials in parts by weight: 40-43 parts of granite edge scraps, 30-32 parts of waste concrete, 20-22 parts of 42.5-grade ordinary portland cement, 2-2.5 parts of polyester-cotton fabric leftover materials, 0.1-0.12 part of dimethylamine-epichlorohydrin polymer, 0.3-0.4 part of an early-strength polycarboxylate superplasticizer, a proper amount of water, 4-5 parts of polyvinyl chloride paste resin, 7.5-9 parts of basalt fiber, a proper amount of 5wt% sodium hydroxide solution, a proper amount of 10wt% acetate solution, a proper amount of deionized water, 1-1.2 parts of a silane coupling agent KH550, 2-3 parts of tributylcitrate an 0.5-0.6 part of calcium stearate. The prepared green brick has good plasticity, tenacity, compressive strength and abrasive resistance, has developed through holes, is high in permeation coefficient and has a noise absorption function.

The invention discloses a water permeable brick and a method for preparing the sintered water permeable brick from manganese dioxide slag and plant ash. In the method for preparing the sintered water-permeable brick from the manganese dioxide slag and the plant ash, raw materials are composed of water and the following powder in parts by weight: 52-56 parts of electrolytic manganese dioxide slag,20-25 parts of plant ash of a biological power plant, 20-24 parts of quartz powder, 2.5-3 parts of sodium silicate and 18-22 parts of limestone powder with the fineness of 0.3 mm. The preparation process comprises four steps of preparation of a green body wet material, compression molding of the wet material, green body drying and sintering. A sintered microcrystalline ceramic structure taking pyroxene and wollastonite as main crystalline phases is formed in the water-permeable brick sintered by the method, so that the compressive strength and the wear resistance of the water-permeable brick are guaranteed, and the prepared water-permeable brick also has an obviously higher water permeability coefficient than a traditional water permeable brick, and is more ideal in comprehensive performance, and a new alternative way is provided for resource utilization of electrolytic manganese dioxide and biomass power generation waste residues.