50results about How to "Increase the anti-seepage pressure" patented technology

The invention discloses an inorganic powder infiltration crystalline water-proof material which consists of 45 to 55 portions of 600#silicate cement, 20 to 25 portions of ultra-thin quartz sands, 25 to 30 portions of master batches, 1 to 5 portions of effective retarding water reducers and 1 to 5 portions of macromolecular tougheners and is manufactured by feeding the materials into a stirrer to be uniformly stirred. The inorganic powder infiltration crystalline water-proof material is characterized by having the advantages of secondary anti-permeability capacity, durable water-proof performance, high sticking performance, acid resistance and alkali matter resistance; besides, the inorganic powder infiltration crystalline water-proof material have the capacity of growing an insoluble crystal in the pores and the micro cracks of a concrete substrate to plug the pores and the micro cracks, thereby improving the anti-permeability capacity of the concrete and achieving the goals of anti-permeability and anti-leakage. The inorganic powder infiltration crystalline water-proof material can be broadly applied to the water-proof projects of railways, roads, ports and docks, culverts, dams and pools as well as large underground projects.

The invention relates to a self-crystallized polymer cement-based waterproof coating, and a preparation method thereof. The polymer cement-based waterproof coating is composed of liquid materials and powder materials according to a weight ratio of 1 : 2-3, wherein the liquid materials comprise 93-96 parts of a polymer emulsion, 2-3 parts of a waterproof agent, 1-3 parts of a plasticizing agent and 1-2 parts of a defoaming agent; and the power materials comprise 30-45 parts of a hydraulic cementing material, 40-55 parts of quartz sand, 10-20 parts of mineral fibers, 3-5 parts of plant active protein, 1-2 parts of a surfactant, 0.5-1 part of a cross-linking agent and 0.5-1 part of a crystallizing agent. The mineral fibers with high length-diameter ratio are selected as a network structure of the waterproof coating. The liquid materials and the powder materials with stable performance are obtained by performing shear dispersion plasticization and waterproof modification on the liquid materials and diffusion mixing the powder materials; and the crystallizing agent dispersed in the network structure swells in water to achieve an auto-repairing function for cracks of the waterproof layer.

The invention discloses a cement base osmotic crystallizing waterproof material and its producing process, including the following components in weight percent: ordinary Portland cement 35%-55%, calcium carbonate 5%-20%, silca sand 25%-50%, osmotic crystallizing active mother material 1%-5%, methyl cellulose MHEC15000PFR 0.05% -0.2%, methyl cellulose MHEC20000PFR 0.05%-0.2%, BaiErLe 4330-3 0-2.5%, and encrypted microsilicon, and the producing process includes in turn: screening, mixing, feeding, blending, checking, and packaging and storing. And the waterproof material forms crystallized waterproof protective layers in the micropores of the cement base to stop exudation of water, and the waterproofing and ant moistureproofing effects are permanent and the adhesion of the waterproof material onto the surfaces of the concrete poured in advance, and the performance is stable and the strength is high.

The present invention relates to an impermeable moisture-proof pre-stirring mortar and a production method thereof, wherein the raw materials comprise, by weight, 40-55 parts of an aggregate, 40-50 parts of superfine 52.5 portland cement, 3-5 parts of high activity permeable crystallization master batch, 5-15 parts of nanometer calcium carbonate, 0.2-0.8 part of a water reducing agent, 0.5-2 parts of a coagulation promoting enhancer, 1-3 parts of redispersible latex powder, 0.1-0.4 part of cellulose ether, 0.02-0.05 part of an anti-foaming agent, 0.2-0.5 part of polypropylene fibers, and 0.1-0.3 part of zinc stearate. According to the present invention, the slurry obtained by stirring the impermeable moisture-proof pre-stirring mortar according to a proper water to material ratio has advantages of cracking resistance, penetrating crystallization, moisture resistance, impermeability and excellent hydrophobicity, and can be used in the fields of building basements, pools, toilets, inner and outer walls, and the like.

The invention discloses high-performance corrosion-resistant dry-mixed waterproof mortar. The high-performance corrosion-resistant dry-mixed waterproof mortar is prepared from the following raw materials in parts by weight: 60-70 parts of cement, 35-45 parts of mineral powder, 10-30 parts of coal ash, 300-500 parts of regenerated fine aggregates and 5-10 parts of a compounded additive, wherein the compounded additive is prepared from the following raw materials in parts by weight: 40-60 parts of coal ash, 5-7 parts of a water repellent, 40-50 parts of an expanding agent, 2-5 parts of an air-entraining and water-reducing agent, 2-4 parts of anti-crack short fiber and 2-10 parts of a water-retaining thickening agent. By virtue of a dry-mixing form, the high-performance corrosion-resistant dry-mixed waterproof mortar is convenient to use, and the sulfate corrosion can be effectively prevented.

The invention discloses a self-healing type non-self-adhesive modified asphalt waterproof coiled material which is characterized by consisting of a modified asphalt coating material, a tire body and an isolation material, wherein the modified asphalt coating material consists of the following components in percentage by mass: 40-50% of petroleum asphalt, 3-6% of machine oil, 8-12% of high polymer material, 15-20% of expanding material, 0.2-0.6% of active agent, 10-20% of cement and 5-15% of filler. During preparation, the coating material is uniformly mixed and then is coated on the tire body, and then the tire body is covered with the isolation material to obtain the self-healing type non-self-adhesive modified asphalt waterproof coiled material. By virtue of tests performed according to relevant national or industrial test methods, the waterproof coiled material disclosed by the invention has good mechanical properties and excellent self-healing performance.

The invention relates to green and environment-friendly building mortar and a production method thereof. The building mortar is prepared from, by weight, 60-70 parts of aggregates, 55-60 parts of sulphoaluminate cement clinker, 6-8 parts of high-activity infiltration crystalline masterbatch, 16-20 parts of nano calcium carbonate, 1.2-1.6 parts of water reducing agent, 3-5 parts of coagulation accelerating enhancer, 0.06-0.08 part of compound activator, 4-6 parts of redispersible latex powder, 0.5-0.8 part of cellulose ether, 0.08-0.12 part of defoamer, 0.6-0.8 part of polypropylene fiber and 0.4-0.6 part of zinc stearate. After the green and environment-friendly building mortar is stirred according to the appropriate ratio of water to material, the mortar is good in crack resistance, infiltration crystalline, corrosion resistance, permeability resistance and hydrophobicity and suitable for the fields of building basements, pools, toilets, inner walls, outer walls and the like.

The invention relates to environment-friendly masonry mortar and a production method thereof. The environment-friendly masonry mortar is produced from, by weight, 38-42 parts of lime factory waste, 42-46 parts of sulphate aluminium cement clinker, 10-20 parts of steel slag micro powder, 10-12 parts of high-activity capillary crystalline master batches, 12-14 parts of nano calcium carbonate, 1.0-1.2 parts of water reducer, 3-5 parts of coagulating enhancer, 0.12-0.14 part of compound activator, 5-7 parts of redispersible powder, 1.2-1.4 parts of cellulose ether, 0.16-0.18 part of antifoaming agent, 1.5-1.7 parts of polypropylene fibers and 0.8-1.2 parts of zinc stearate. According to the environment-friendly masonry mortar, the mortar stirred according to the proper water-material ratio has excellent cracking resistance, capillary crystalline, corrosion resistance, seepage resistance and hydrophobicity, and is suitable for the fields of building basements, pools, toilets, inner and outer walls and the like.

The invention relates to the technical field of a plugging agent, especially to an expansion-controllable plugging agent. The expansion-controllable plugging agent is prepared from the following raw materials, by weight, 60-80 parts of polyacrylamide, 10-20 parts of meerschaum, 10-20 parts of teflon, 5-10 parts of a flexibilizer, 7-15 parts of a dispersant and 3-9 parts of a coagulant enhancer. The expansion-controllable plugging agent can control expansion speed, has good deformability and adaptability, can reduce permeability of a plugged zone, enhance strength of the plugged zone and raise pressure-bearing capacity of the plugged zone, is low-cost, is non-toxic, harmless and pollution-free, and is green and environmentally friendly.

The invention relates to the field of cement and concrete. The invention discloses special mixed cement for on-site preparation of concrete as well as a preparation method and application. Except formixing and grinding cement clinker and other raw materials, the mixed cement is prepared from the following components in percentage by mass: 60%-80% of general Portland cement of the 42.5 grade or above, 3.0%-6.0% of gypsum, 5%-15% of limestone, 2%-29% of an admixture and 0.5%-3.0% of a functional additive. The general Portland cement with the grade of 42.5 or above meets the requirements of GB175, and parameters of the general Portland cement are controlled such that the mass ratio of the micro powder less than or equal to 3 [mu]m is less than or equal to 10%, the one-day compressive strength is less than or equal to 12 MPa, the 3-day compressive strength is more than or equal to 20 MPa, the 28-day compressive strength is more than or equal to 45 MPa, the water consumption of the standard consistency of the cement paste is less than or equal to 28%, the alkali content is less than 0.6% in terms of 0.658 K2O + Na2O, and the chloride ion content is less than 0.06%. The raw materials are wide in source, the mixed cement can be directly used for preparing or premixing concrete on site, no admixture or functional additive needs to be added again, crack resistance, workability and themechanical property of the concrete are improved, and construction operation is simplified.

The invention discloses cement special for waterproof mortar. The cement is prepared from the following raw materials: clinker, gypsum, limestone, a grinding aid and a modifying component, and furtherfrom one or more active or nonactive mixed materials comprising granulated blast furnace slag, slag powder, cinerite and flyash. And other residues are allowed to be mixed in to replace active mixedmaterials. The invention also discloses a preparation method of the cement special for waterproof mortar, and the raw materials have a lot of sources; in terms of the problem that temperature of cement is high and thus difficult for being mixed with the modifying component in an existing cement production technology, a cement cooling method and a cement cooling device are combined; in the design,a secondary batching, stirring and homogenizing system is adopted, so that technological conditions for adding the modifying component and preparing various mortar are achieved; when mortar is stirred, no admixture is added, so that the homogeneous problem of a gelatinizing material system in the mortar is alleviated and various performance and construction efficiency of the mortar are improved.

The invention discloses cement-based self-leveling mortar and a preparation method thereof. The cement-based self-leveling mortar is prepared from a cement-based self-leveling mortar matrix and a mixture with sound insulation and waterproof functions, wherein the mixture with the sound insulation and waterproof functions comprises a sound absorption material, a waterproof material and a cementingmaterial. According to the invention, three important characteristics including water resistance, sound insulation performance and self-leveling performance are perfectly fused together, and performance conflicts in respective raw material performances are effectively solved, so the self-leveling mortar with excellent performance and sound insulation and water resistance functions is obtained.

The invention belongs to the technical field of building materials, and particularly relates to a high-anti-permeability cement-based repair material for tunnel engineering. The repair material consists of portland cement, coal ash, silica fume, steel slag powder, rock powder, tailing sand, quartz sand, attapulgite, acrylate emulsion, cellulose ether, polyacrylamide, PVA fibers, PET fibers, a polycarboxylic acid water reducer and a defoaming agent. The repair material has the characteristics of easy construction, good working performance, good water retention performance, high compressive strength, high anti-permeability level, high toughness and adhesion, excellent durability and the like; and the repair material can be suitable for construction initial protection or engineering later maintenance and repair of lining concrete in the tunnel engineering.

The invention discloses a water-based capillary crystalline waterproofing agent. The agent is characterized by being prepared from the following components in parts by mass: 40-60 parts of an organicsilicon monomer, 6-9 parts of a surfactant, 6-9 parts of a polymer film-forming agent, 10-15 parts of nano silicon dioxide, 10-15 parts of amorphous calcium aluminate, 6-9 parts of calcium hydroxide and 50-70 parts of water. The waterproof agent has very strong permeability and can permeate below the surface layer of concrete by 3-8 cm, formed eutectic always grows along capillary pores of the concrete, all pores of the concrete are blocked, the compactness of the concrete can be enhanced, the strength and hardness of a concrete base material can also be enhanced, and the waterproof effect with the same service life as the concrete is achieved, according to the invention, the plasticization of concrete and mortar can be improved, and the weathering resistance, shrinkage resistance and impermeable pressure of concrete are further improved,construction is easy, and cost is low.

The invention relates to the technical field of plugging agents, particularly a high-elasticity waterproof plugging agent. The high-elasticity waterproof plugging agent is prepared from the following raw materials in parts by weight: 30-50 parts of silicon rubber, 20-30 parts of sulfoaluminate cement, 10-20 parts of lithium chloride, 15-25 parts of talcum powder, 6-12 parts of coconut root-barks, 6-10 parts of shells, 2-6 parts of polytetrafluoroethylene, 7-15 parts of sodium tripolyphosphate and 5-10 parts of hydroxypropyl methyl cellulose. The high-elasticity waterproof plugging agent provided by the invention has high compression elasticity, and is remarkable and efficient in plugging effect and strong in leakage layer lingering property, and a plugging layer is high in loading capacity within a short time, good in flowability and elastic and variable in shaped under pressure.

The invention relates to water seepage prevention cement which is prepared from the following raw materials in percentage by weight: 5%-8% of fluorine-containing polyacrylate latex powder, 2%-3% of rosin of 100-200 meshes, 3%-5% of sodium silicate, 3%-5% of calcium hydroxide, 1%-2% of alums, 1%-2% of sodium dodecyl sulfate, 10%-15% of sulphate aluminum cement and the balance of silicate cement, wherein the fluorine content of the fluorine-containing polyacrylate latex powder is 1%-3%. The water seepage prevention cement prepared by the invention has water seepage prevention function.

The invention discloses an inorganic waterproof coating. The inorganic waterproof coating is prepared by conveying the following raw materials to a stirrer to be stirred uniformly: 45-55 parts of 800# Portland cement, 20-25 part of extra-fine quartz sand, 25-30 parts of master batch, and 1-5 parts of an efficient coagulation-delaying type water reducing agent. The inorganic waterproof coating has the characteristics of having secondary seepage resistance, long-lasting waterproof performance, strong bonding, acid corrosion resistance and alkaline corrosion resistance, can grow insoluble crystals in capillary pores and microcracks in the concrete matrix to block the capillary pore passages and microcracks, in order to improve the concrete seepage resistance and reach the purposes of seepage resistance and leakage proofing. The inorganic waterproof coating can be widely applied to waterproof projects for metros, roads, ports, culverts, dams, pools and large-scale underground projects.

The invention discloses graphene repairing waterproof paint for a concrete crack. The graphene repairing waterproof paint is prepared from the following components in parts by weight: 50 to 58 parts of portland cement, 15 to 25 parts of vitrified micro bead powder, 4 to 8 parts of water repellent, 5 to 10 parts of acrylic latex powder, 10 to 15 parts of graphene nanosheet, 15 to 25 parts of quartzsand, 1 to 2 parts of glass chopped silk, 0.05 to 0.1 part of antifoaming powder and 0.5 to 1 part of filling material. Relative to existing repairing waterproof paint for the concrete crack, the graphene repairing waterproof paint is enhanced in performance.