196results about "Cement coatings" patented technology

The invention discloses a cement-based aerogel heat preservation and heat insulation coating material for concrete and a spraying construction process of the cement-based aerogel heat preservation and heat insulation coating material, and belongs to the technical field of concrete materials. The coating material is prepared from powder, composite emulsion and water, and the powder is prepared by mixing superfine sand, cement, modified silicon dioxide-carbon nanotube composite aerogel powder, hollow glass beads, nanofibers, graphene nanosheets, an ultraviolet light absorber, a water reducing agent and a defoaming agent. The composite emulsion is composed of an acrylate copolymer emulsion, a polyvinyl acetate-ethylene emulsion, a temperature-sensitive polymer emulsion and a coalescing agent. Based on the multi-stage pore network and multi-component emulsion optimization design and multi-component synergistic effect, the material has good fluidity after being mixed, and has low heat conductivity coefficient, high strength and high toughness after being hardened; the construction technology of high-pressure water flushing and layered spraying is provided, and the method has the advantages of being efficient in construction, stable in quality and the like and can be applied to heat preservation and heat insulation of a concrete structure in a severe environment.

The invention discloses a concrete sewage pipeline antibacterial anticorrosive coating material and a preparation method thereof, the concrete sewage pipeline antibacterial anticorrosive coating material is prepared from the following raw materials: water, water supply aluminum sludge ash, a water reducing agent, Portland cement, aggregate and antibacterial agents, the antibacterial agents are three antibacterial agents with different representativeness, respectively zinc oxide ZnO, copper phthalocyanine C32H16CuN8 and dihexadecyl dimethyl ammonium bromide C34H72BrN. Compared with a traditional concrete anticorrosive coating material, the prepared antibacterial anticorrosive coating material for the sewage pipeline has the advantages that the water supply aluminum sludge ash modified cement-based material is used as a carrier, and the antibacterial agent is used as a functional component to be doped to prepare a functional antibacterial coating, so that the microbial corrosion resistance and the stability of the coating are remarkably improved, and the antibacterial anticorrosive coating material is green and environment-friendly, and has a good application prospect. The method is low in cost, simple in process and convenient to prepare.

The invention belongs to the technical field of coatings, and particularly relates to an aerogel modified reflective insulation MPC coating and a preparation method thereof. The aerogel modified reflective thermal insulation MPC coating provided by the invention is prepared from the following raw materials in parts by weight: 60 to 74 parts of magnesia, 45 to 55 parts of phosphate, 6 to 8 parts of retarder, 31 to 92 parts of thermal insulation filler, 1 to 3 parts of functional additive, 1 to 5 parts of aerogel and 48 to 84 parts of water. The aerogel modified reflective heat insulation MPC coating has excellent reflective heat insulation performance, and also has good constructability and durability.

The invention discloses an alkali-resistant solar interface evaporation material for aquaculture sewage treatment and a preparation method of the alkali-resistant solar interface evaporation material, and relates to the field of energy environment materials. The method comprises the following steps: S1, mixing clay with iron powder, adding water, stirring, rolling, forming and calcining to prepare an iron-containing modified clay skeleton; s2, uniformly mixing attapulgite, montmorillonite, composite alkali-resistant modified plant fibers, Portland cement and water, spraying the mixture on the framework, and solidifying at room temperature to form a heat-insulating water delivery layer; and S3, uniformly mixing carbon black, attapulgite, Portland cement, composite alkali-resistant modified plant fibers and water, spraying the mixture on the heat-insulating water delivery layer, and solidifying at room temperature to form a heat-absorbing evaporation layer. The material disclosed by the invention is good in alkali-resistant stability, high in solar evaporation efficiency, capable of synchronously removing heavy metals, low in raw material cost, simple and convenient in preparation process and suitable for large-scale treatment requirements of breeding sewage.

The invention discloses a modified waterproof coating. Comprising the following components in parts by weight: 60-110 parts of cement; 60 to 160 parts of an acrylate polymer emulsion; 20 to 50 parts of modified diatomite; 20 to 50 parts of silicon nitride; 20 to 30 parts of talcum powder; 5 to 15 parts of a defoaming agent; and 2-10 parts of a silane coupling agent. The waterproof coating can better adapt to deformation of a cement substrate through the modified diatomite, the adaptability of the waterproof coating to different base layers is improved, and the permeation resistance of alkaline substances generated by wall curing is increased. The modified waterproof coating permeates into gaps of a wall surface, when the modified waterproof coating meets alkaline substances on the wall surface, tetraethyl orthosilicate of the modified waterproof coating is rapidly hydrolyzed under the catalysis of alkali to generate nano-scale silicon dioxide particles,-OH groups on the surfaces of the nano-scale silicon dioxide particles react with active Si-H bonds in hydrogen silicone oil, and the modified waterproof coating is formed. Therefore, hydrophobic groups are connected with the surfaces of nano silicon dioxide particles, the protection wall is florified, and the structure of a paint substrate is broken.

The invention discloses a double-effect waterproof tiling coating and a preparation method thereof, and belongs to the technical field of tiling coating preparation. The double-effect waterproof tiling coating is prepared from the following components in parts by weight: 30 to 40 parts of Portland cement, 20 to 30 parts of quartz sand, 8 to 15 parts of a modified waterproof agent, 1 to 2 parts of nano silicon dioxide, 5 to 12 parts of a tackifier, 0.3 to 0.6 part of hydroxypropyl methyl cellulose, 0.2 to 0.5 part of a water reducing agent, 0.1 to 0.3 part of a de-foaming agent and 0.1 to 0.2 part of a preservative. The coating prepared by the method has excellent waterproofness and adhesiveness.

The invention discloses a cement-enhanced super-hydrophobic self-adaptive temperature control coating which comprises a thermochromic bottom layer and a radiation refrigeration surface layer, a primer adopted by the thermochromic coating is prepared from the following components in parts by weight: 3 to 6.6 parts of composite resin matrix, 0.4 to 1.2 parts of filler, 11 to 15 parts of thermochromic powder and 10 to 15 parts of organic solvent; and finish paint adopted by the thermochromic coating is prepared from the following components in parts by weight: 50 to 55 parts of SiO2 dispersion liquid, 2 to 9 parts of white cement slurry, 5 to 8 parts of hydrophobic modifier, 6 to 10 parts of low-surface-energy substance and 7 to 11 parts of migration-anchoring dual-function additive. The coating system disclosed by the invention can realize efficient cooling in a high-temperature environment, can keep thermal insulation performance in a low-temperature environment, has mechanical stability and self-cleaning performance required by long-term outdoor application, and is wide in applicability.

The invention discloses a preparation method of a hydrophobic, flame-retardant, heat-insulating and photo-thermal characteristic coating. The preparation process comprises the following steps: firstly, mixing and stirring water and a binder into slurry A, sequentially adding cement, polymethylhydrosiloxane and a flame retardant, uniformly stirring respectively, then brushing the slurry on the surface of a substrate, drying at room temperature to obtain a primary coating, and polishing the primary coating; mixing a mixed binder, water, ammonia water and a siloxane compound to form a dispersion liquid, adding an oxide and a photothermal conversion filler, uniformly stirring, spraying the composite slurry on the surface of the polished primary coating, and drying at room temperature to obtain the multifunctional coating integrating flame-retardant, heat-insulating, super-hydrophobic and photothermal conversion functions. Cooperative integration of super-hydrophobicity, flame retardance, heat insulation and photothermal conversion performance of the material is built through layer-by-layer functionalization. The multifunctional coating has wide application prospects in the fields of aerospace, ocean engineering, green buildings, power transmission lines and the like.

The present invention discloses a radiation cooling polymer cement coating for recycling opalescent glass powder, and its preparation method and application, belonging to the technical field of coating compositions. The method of the present invention adopts modified opalescent glass powder, modified silicone acrylic emulsion, and is mixed with ordinary Portland cement, quartz powder, rheological agent, and binder. It has the advantages of a wide source of raw materials, low cost, and convenient process operation, which is conducive to scaled production and large-scale application. The prepared radiation cooling polymer cement coating has the characteristics of super hydrophobicity and high absorption rate of infrared radiation of sunlight. It has excellent self-cleaning ability and can effectively reduce the input of heat from sunlight to achieve the effect of radiation cooling. The coating is used to reduce heat input and has good application prospects in the fields of building temperature regulation, electronic equipment heat dissipation, and solar cell cooling.

The invention discloses a high-temperature-resistant heat insulation and sound insulation function integrated amorphous material and a preparation method thereof, and belongs to the technical field of heat insulation and sound insulation protection of marine pipelines and equipment. The materials of the amorphous material with a preferable ratio comprise the binder, the additive, the aerogel particles, the hollow structure material and the reinforced phase material, the materials are treated by a certain process to form the amorphous material with high viscosity, and the amorphous material can play a role in heat insulation and sound insulation when being smeared on the surfaces of pipelines and equipment; and the material can be used at the temperature of 400 DEG C, and has good heat resistance and wide application prospects.

The present disclosure provides a full-dimensional hydrophobic radiation refrigeration cement coating and a preparation method thereof. The main raw materials of the coating are cement, functional fillers, micron / nanofibers, hydrophobic components and water. Unlike conventional hydrophobic surface paint which only has surface hydrophobic self-cleaning function, the full-dimensional hydrophobic radiation refrigeration cement coating of the present disclosure integrates radiation refrigeration and full-dimensional hydrophobicity, and can still maintain excellent self-cleaning and radiation refrigeration performance even after abrasion. The coating has a contact angle with water greater than 150°, and the overall reflectivity and overall infrared emissivity of the atmospheric window are both above 90%.

The invention discloses a modified polymer cement-based normal-temperature foaming fireproof coating and a preparation method thereof, and relates to the technical field of fireproof coatings. The modified polymer cement-based normal-temperature foaming fireproof coating comprises a component A and a component B, the component A is prepared from the following raw materials in parts by weight: 15 to 20 parts of cement, 10 to 12 parts of calcium carbonate, 0.3 to 0.9 part of nano titanium dioxide, 30 to 35 parts of polyurethane emulsion, 1 to 2 parts of cross-linking agent, 8 to 12 parts of flame retardant, 1 to 3 parts of foaming agent, 0.5 to 1.5 parts of dispersing agent and 10 to 20 parts of deionized water; the component B comprises the following raw materials in parts by weight: 20-25 parts of a curing agent, 0.1-0.5 part of an organic zinc catalyst and 0.5-1.2 parts of a foam stabilizer; the prepared modified polymer cement-based normal-temperature foaming fireproof coating has excellent fireproof performance, bonding strength and compressive strength.

The present application belongs to the field of indoor ceiling moisture-proof, and discloses an indoor decoration ceiling moisture-proof material and a preparation method. The material comprises liquid material and powder material. The liquid material comprises the following components: acrylic emulsion, epoxy modified water absorbing resin, water and first additive. The powder material comprises the following components: heavy powder material, light filler and second additive, and optionally humidity adjusting functional filler. The ceiling moisture-proof material has the advantages of light weight, easy coating, smooth brushing, moisture absorption, moisture release and condensation water drop prevention in addition to the water resistance and impermeability of traditional polymer cement-based waterproof materials.

This invention provides an acrylic emulsion with a core-shell structure, its preparation method, and its application. The acrylic emulsion with a core-shell structure includes a core and a shell. The raw materials for preparing the shell include a first acrylate monomer, an olefinic unsaturated acid monomer, an anionic emulsifier, a free radical initiator, and a neutralizing agent. The raw materials for preparing the core include a second acrylate monomer, a catalyst, an oxidizing agent, and a reducing agent. Since no acrylamide monomers are added to the monomers used in preparing the acrylic emulsion, the resulting acrylic emulsion is non-neurotoxic and will not harm human health. Furthermore, the specific core-shell structure allows the acrylic emulsion to have a suitable viscosity after being mixed with inorganic powders such as cement, preventing rapid gelation and facilitating construction.

This invention relates to a protective coating material for reinforcing bars based on C7MS4-C5MS3 phosphoaluminate cement, its preparation method, and its application, belonging to the field of civil engineering technology. This invention utilizes organic binders, emulsifying stabilizers, dispersants, and early-strength agents combined with inorganic cementitious materials such as iron-rich phosphoaluminate cement containing the C7MS4-C5MS3 mineral phase to prepare a reinforcing bar coating material that is easy to apply, has strong adhesion, and high durability. This reinforcing bar coating material is mainly suitable for corrosion prevention of reinforcing bars in marine environments. The reinforcing bar coating material prepared by combining organic and inorganic materials exhibits strong adhesion, high resistance to erosion and carbonation, and a dense structure, solving the problems of poor adhesion and easy peeling of traditional inorganic coating materials. Furthermore, the reinforcing bar coating material prepared by combining organic and inorganic materials can significantly improve the corrosion resistance of reinforcing bars in reinforced concrete, extending the service life of the reinforcing bars.

The application discloses a seven-layer gradient function composite repairing construction method for concrete freeze-thaw damage, and the method comprises the following steps: investigating a freeze-thaw damage area, determining damage depth and range, removing all loose, peeled and cracked concrete by using mechanical tools until the base surface is exposed, carrying out rust removal and corrosion prevention treatment on the exposed steel bars, cleaning the interface by using high-pressure water jet, removing dust and debris, and coating, in sequence, a primer, anti-freezing repair mortar, nano-enhanced coating, cement-based anti-freezing, waterproof and corrosion-proof protective coating, alkali-resistant sealing primer and protective coating on the base surface, wherein the protective coating is coated in two layers, the damaged base body is reconstructed in a gradient mode, the structural integrity is restored, a long-acting protection system with the functions of active protection and passive barrier is constructed from inside to outside and with gradient transition of material properties, and the service life of the repaired structure in an extreme environment is significantly prolonged.

The invention relates to the technical field of coatings, in particular to an inorganic radiation refrigeration coating as well as a preparation method and application thereof. The invention relates to an inorganic radiation refrigeration coating, which comprises the following raw materials by weight: 20-40 parts of white sulphoaluminate cement; 30 to 50 parts of inorganic functional filler subjected to surface treatment; 0.1-1 part of a water reducing agent; 0.1-0.5 part of a water retaining agent; 1-2 parts of redispersible latex powder; 0.05 to 0.1 part of a thixotropic agent; 25 to 35 parts of water; the inorganic functional filler subjected to surface treatment is prepared by carrying out surface coating treatment on the inorganic functional filler by adopting a coupling reagent. The inorganic radiation refrigeration coating provided by the invention has good radiation refrigeration, high strength, durability and relatively strong adhesive force.

The invention discloses a diatomite chemical foaming synergistic hierarchical porous cement-based coating as well as a preparation method and application thereof. Raw materials of the cement-based coating comprise a solid component and mixing water. The solid component is prepared from the following components in parts by weight: 55 to 65 parts of cement binding material, 20 to 30 parts of diatomite powder, 3 to 5 parts of calcium peroxide powder, 3 to 5 parts of stearate powder, 0.3 to 0.8 part of fiber, 1.7 to 2.5 parts of citric acid powder, 4.5 to 6.5 parts of isobutyltriethoxysilane and 0.5 to 1.0 part of dibutyltin dilaurate. Gradient multistage pore channels are constructed through directional pore forming in a cement-based material, differential modification of pore walls / pore channels by a double-hydrophobic barrier is cooperated, and a liquid water transmission path is cut off while a water vapor diffusion channel is maintained, so that the problem of three-element balance of ventilation, water resistance and mechanical strength is solved; and the service life of the cement structure body in an extreme environment is prolonged.

The application discloses a construction technical method of spraying anti-rust slurry on a steel reinforcement cage, and comprises the following steps: step A, hoisting the prepared steel reinforcement cage to a storage area and cleaning dust on the steel reinforcement cage; step B, preparing cement high-molecular resin anti-rust slurry; and step C, uniformly spraying the cement high-molecular resin anti-rust slurry on the steel reinforcement cage by using a spraying machine, and naturally air-drying the steel reinforcement cage. The cement high-molecular resin anti-rust slurry is prepared by using cement slurry, instant gel powder and accelerator as raw materials and by controlling the ratio of the three within a specific range. The cement high-molecular resin anti-rust slurry is sprayed on the steel reinforcement cage and the spraying thickness is controlled within the range of 0.5-1.0 mm, so that the problem of rusting of the steel reinforcement cage during storage can be solved, the construction quality of the steel reinforcement cage can be optimized, and building materials can be saved.

The invention discloses a low-water-absorption alkali-resistant waterproof emulsion as well as a preparation method and an application method thereof, and belongs to the technical field of cement coatings. Comprising the following steps: preparing a pre-emulsion, namely mixing and stirring an emulsifier, a monomer and deionized water for 30 minutes to obtain the pre-emulsion; preparing a kettle bottom material: adding deionized water into the reaction kettle to obtain the kettle bottom material; 3% of the pre-emulsion and an initiator a are added into a kettle bottom material in a stirring state, after 15 min, the remaining pre-emulsion and an initiator b are dropwise added at the same time, the pre-emulsion and the initiator b are controlled to be dropwise added at the same time, the dropwise adding temperature is controlled to be 83-85 DEG C, the total dropwise adding time is 4 h, and heat preservation treatment is conducted after dropwise adding is completed; an oxidizing agent and a reducing agent are added to eliminate residual monomers, then a neutralizing agent is added to adjust the pH value, an auxiliary is added, and the low-water-absorption alkali-resistant polymer cement waterproof emulsion is obtained, and the low-water-absorption alkali-resistant polymer cement waterproof coating prepared from the emulsion has low water absorption and alkali resistance and also has excellent mechanical properties.

The application discloses a water-based inorganic coating for a concrete structure and a preparation method thereof. In one aspect, the application provides a water-based inorganic coating for a concrete structure, which comprises an A component and a B component; the A component comprises the following components in a proportion: modified water glass 20-30 parts, fine filler 8-12 parts, ultra-fine filler 6-10 parts, fluorosilicate 0.5-1 part, Portland cement 50-60 parts, retarding water reducing agent 2-4 parts, and water 25-35 parts; the B component comprises the following components in a proportion: polybutadiene type silane-terminated polyurethane prepolymer 30-40 parts, Portland cement 50-60 parts, nano titanium dioxide 18-24 parts, polycarboxylic acid type water reducing agent 1-1.5 parts, and water 35-45 parts. In another aspect, the application further provides a preparation method of the water-based inorganic coating for a concrete structure. The application has excellent deep penetration crystallization performance, and has strong waterproof performance and anti-permeation performance.

The invention relates to a high-molecular polymer cement coating for roof waterproofing and a preparation method of the high-molecular polymer cement coating, and belongs to the technical field of waterproof coatings. Wherein the polymer emulsion is prepared from the following raw materials in parts by weight: 40 to 55 parts of acrylate emulsion, 2 to 4 parts of carbon black, 5 to 10 parts of 2, 2, 4-trimethyl-1, 3-pentanediol monoisobutyrate, 8 to 16 parts of modified fiber and 20 to 35 parts of deionized water; the cement paste is prepared from the following raw materials: 60-75 parts of Portland cement, 10-20 parts of quartz powder, 5-12 parts of ground calcium carbonate, 4-8 parts of cellulose ether, 1-3 parts of calcium formate, 2-6 parts of polycarboxylic acid and 30-35 parts of tap water. The high-molecular polymer cement coating has extremely high tensile strength, impact resistance and cracking resistance, the polymer emulsion and the cement paste are mixed to form an interpenetrating network structure, the high-molecular polymer cement coating has flexibility and weather resistance of an organic polymer and strength and durability of inorganic cement, and the mechanical property, durability and construction performance of the high-molecular polymer cement coating are improved.

The waterproof emulsion suitable for the polymer cement waterproof coating in a low-temperature and high-humidity environment is prepared by a free radical emulsion polymerization reaction, with a vinyl monomer, 2-acrylamide-2-methyl propane sulfonic acid and the like as a comonomer, through anion / emulsion emulsifier and mechanical stirring, dropwise adding an initiator, and with functional additives and preservatives, to obtain a benzene and propylene emulsion containing carboxylic acid group, sulfonic acid group and phosphoric acid group. The polymer cement waterproof coating prepared by using the benzene and propylene emulsion has good mechanical properties, good chelation, low limit inhibition and lattice distortion, can easily be adsorbed on the tiny calcium carbonate crystal grains in a low-temperature and high-humidity environment, and the like, prevents the formation and precipitation of calcium carbonate, and has strong anti-efflorescence ability.

The invention provides a dry powder coating for exterior walls and a preparation and construction method thereof, and belongs to the technical field of building coatings. The coating is prepared from calcium aluminum borosilicate cement powder, boron nitride nanosheets, rare earth cerium doped titanium dioxide, volcanic ash microspheres, a potassium magnesium phosphate exciting agent, a bio-based sodium polyaspartate dispersing agent and a modified hectorite thixotropic agent. The high-amorphous-phase cement powder is prepared through a melting-quenching method, and the compressive strength, the acid corrosion resistance and the photocatalytic efficiency are remarkably improved. The volcanic ash microbeads are hydrophobically modified to reduce the density, and are matched with the potassium magnesium phosphate activator to optimize the pore structure, so that the freeze-thaw resistance is remarkably improved. The synergistic effect of the bio-based dispersing agent and CTAB modified hectorite is adopted, and high dispersion of the nano material and high thixotropy of the slurry are achieved. During construction, a multifunctional coating is formed through two-stage spraying and ultraviolet light catalytic activation. The high-strength self-cleaning light-weight building external wall protection material has the characteristics of high strength, self-cleaning, light weight and environmental protection, and is suitable for high-durability building external wall protection.

The invention relates to the technical field of coating materials, in particular to a black refractory coating as well as a preparation method and application thereof. The black refractory coating comprises the following raw material components: perovskite type black ceramic, ferrochrome spinel, silicon carbide and refractory cement. The black fireproof coating has excellent high-temperature stability, can achieve a high energy-saving effect, and is low in cost and simple in preparation process. By utilizing the technical scheme provided by the invention, the problems of poor high-temperature stability, small adhesive force and high cost of the black fireproof coating in the prior art are effectively solved.

The application discloses a preparation method of an interface treatment agent for a steel structure, and comprises the following steps: adding graphene powder and boron nitride powder into a mixed solution composed of ethanol and water, performing ultrasonic treatment, then centrifuging the mixed solution, collecting supernatant, drying the supernatant, and obtaining graphene nanosheet / boron nitride nanosheet composite material; mixing and stirring polydimethylsiloxane, dibutyltin dilaurate and the graphene nanosheet / boron nitride nanosheet composite material, adding polyacrylate emulsion, and performing stirring treatment to obtain modified polyacrylate emulsion; mixing cement, redispersible latex powder, river sand, defoaming agent, triethanolamine and hydroxyethyl methyl cellulose as dry material components; and taking the modified polyacrylate emulsion as a liquid component. The interface treatment agent can not only effectively improve the interface performance between the steel structure and mortar, but also improve the corrosion resistance and weather resistance of the surface of the steel structure.

The invention relates to the technical field of coatings, in particular to an outdoor non-expansive fireproof coating for a steel structure and a preparation method thereof.The outdoor non-expansive fireproof coating for the steel structure is prepared from Portland cement, light heat insulation aggregate, gypsum, composite toughening slurry, flame-retardant filler, vinyl acetate-ethylene copolymer rubber powder and cellulose ether, the water reducer comprises a polycarboxylate superplasticizer, hydrophobic fumed silica, potassium methyl silicate, lithium carbonate and water. The composite toughening slurry is a water-based dispersion system containing an inorganic cross-linked network, a micron-nano reinforced phase and surface grafting modified fibers. According to the invention, the composite toughening slurry containing an inorganic cross-linked network, a micron-nano reinforced phase and surface grafting modified fibers is constructed and is introduced into a coating system as an integral functional component; the problem that a traditional non-expansive fireproof coating generates micro-cracks due to shrinkage stress concentration in the drying maintenance and temperature and humidity circulation process is effectively solved.

The application discloses a kind of bio-based polyurethane anticorrosive paint, including A component, B component and C component, the mass ratio of A component, B component and C component is 1: (0.4-0.6): (1-1.5);The A component includes bio-based hydroxyl resin 70-90 parts, bio-based diluent 5-10 parts, auxiliary 2-5.3 parts, functional filler 6-12 parts by mass fraction;B component includes isocyanate;The C component includes portland cement 35-55 parts, calcium hydroxide 5-10 parts, active powder 3-8, color filler 38-50 parts by mass fraction.In addition, the preparation method and application of the bio-based polyurethane anticorrosive paint are also disclosed.The application uses solvent-free organic-inorganic composite polyurethane system, with very low VOC content, meet environmental requirements, and can adapt to short low tide construction window period and various concrete base, efficiently complete the repair construction of marine facilities, play a long-term anticorrosion effect.

The invention discloses a high-leveling-property dry powder batch-scraping stone-like paint and a preparation method, and belongs to the field of building paints.The stone-like paint is prepared from a high-molecular polymer film-forming component and a stone-like particle component, and the mass ratio of the high-molecular polymer film-forming component to the stone-like particle component is 1: (3-5); according to the present invention, the high-molecular polymer film forming component and the stone-like particle component are uniformly mixed and stirred to obtain the dry powder batch-scraped stone-like paint, the dry powder batch-scraped stone-like paint has characteristics of light self-weight, construction process simplification, simple maintenance and high weather resistance, the batch-scraped drying time of the dry powder batch-scraped stone-like paint is less than 3 h, the bonding strength is 0.2 / MPa after at least five freezing and thawing cycles, and the dry powder batch-scraped stone-like paint has characteristics of good adhesion and good weather resistance. The artificial weathering aging resistance detection result is that the coating does not crack, bulge or peel off within 600h, the pulverization level is 0, the discoloration level is less than or equal to 1, the diameter is 50mm, no crack exists, and the flexibility is good; after the dry powder batch-scraped stone-like paint is scraped into a film, the paint film is smooth, is not easy to be contaminated by dust and is easy to clean; high compactness is achieved, and the ideal leveling effect can be achieved without multiple times of batch scraping or polishing.

The invention relates to the technical field of chemical engineering, in particular to an alkali efflorescence-resistant cement-based impervious coating material which comprises a base material and an active substance, and the base material comprises, by weight, 60-70 parts of a cementing material, 30-40 parts of an auxiliary cementing material and 40-60 parts of aggregate. The active substances comprise 1-1.5 parts of a precipitator, 2-3 parts of a complexing agent, 1-1.5 parts of an early strength agent, 4-6 parts of a calcium ion compensating agent, 1.5-2 parts of a dispersing agent and 1-1.5 parts of other auxiliaries. According to the method, alkali-aggregate reaction is reduced by means of not introducing alkali metal ions, the concentration of soluble calcium salt generated in the curing process is reduced through the pozzolanic effect generated when bulk industrial waste with high silicon content meets water, so that the adverse effect caused by saltpetering is reduced, and meanwhile, under the synergistic effect of various active substances, the curing effect is improved. The compactness and the impermeability of the coating are obviously improved.