CN112830812A - Nano inorganic anti-corrosion, anti-seepage and anti-fouling coating structure for hydraulic concrete - Google Patents
Nano inorganic anti-corrosion, anti-seepage and anti-fouling coating structure for hydraulic concrete Download PDFInfo
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Images
Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/52—Multiple coating or impregnating multiple coating or impregnating with the same composition or with compositions only differing in the concentration of the constituents, is classified as single coating or impregnation
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/60—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only artificial stone
- C04B41/61—Coating or impregnation
- C04B41/70—Coating or impregnation for obtaining at least two superposed coatings having different compositions
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
The invention relates to a nano inorganic anti-corrosion, anti-seepage and anti-fouling coating structure for hydraulic concrete, which is characterized by comprising a double-component high-molecular polymer mortar bonding bottom coating, a double-component high-strength polymer mortar middle coating and a nano anti-corrosion and anti-fouling protective surface coating, wherein the double-component high-molecular polymer mortar bonding bottom coating, the double-component high-strength polymer mortar middle coating and the nano anti-corrosion and anti-fouling protective surface coating are sequentially stacked together. The invention has the advantages of corrosion resistance, seepage control, pollution resistance, good effect, good stability, easy cleaning, lasting guarantee effect, good applicability and the like.
Description
Technical Field
The invention relates to the field of hydraulic engineering construction, in particular to a nano inorganic anti-corrosion, anti-seepage and anti-fouling coating structure for hydraulic concrete.
Background
Along with the overall promotion of river, lake and reservoir engineering, the increase of cross-basin water transfer engineering, the forms of hydraulic engineering buildings tend to be diversified, single or a plurality of buildings with different functions and different types are often adopted in the hydraulic engineering to regulate and control water flow and prevent water damage so as to meet the requirements of water resources, and the water transfer engineering buildings mainly comprise water transfer channels, water transfer pipelines, water diversion tunnels, aqueducts, inverted siphons, culverts and the like.
Hydraulic concrete is one of the most important materials in hydraulic engineering construction, and needs to play a role in various complex environmental conditions and ensure the normal operation of water transfer work.
In the prior art, publication number CN205171566U discloses a hydraulic concrete structure with frost resistance and water resistance, which comprises a hydraulic concrete structure main body, an adhesive, a heat insulation board and a waterproof layer. And a T-shaped pipe pore passage is reserved on the hydraulic concrete structure main body. The heat insulation board is a perlite heat insulation board and is fixed on the hydraulic concrete structure main body through a binder, and through holes with the same diameter are arranged at the corresponding positions of reserved holes of the heat insulation board and the hydraulic concrete structure main body. The binder is perlite binder. The waterproof layer is formed by coating waterproof mortar on one side, far away from the wall body, of the heat insulation board, the steel wire mesh is arranged in the middle of the waterproof layer, and the waterproof mortar is filled in a reserved hole channel of the hydraulic concrete structure body and a through hole of the heat insulation board, so that the waterproof layer and the outer waterproof layer are connected into a whole, and the structural integrity is improved. The composite structure of the technical scheme of the invention has the heat preservation and insulation functions of the heat preservation plate and the waterproof and anti-permeability functions of the waterproof layer, so that the hydraulic concrete structure has good freeze thawing damage resistance.
Publication No. CN104790349A discloses a hydraulic concrete structure with ceramic plates as protective layers and a construction process thereof, and the hydraulic concrete structure comprises a hydraulic concrete structure main body, wherein a plurality of expansion bolts are arranged on the hydraulic concrete structure main body, a plurality of ceramic plates are arranged outside the hydraulic concrete structure main body, the upper ends and the lower ends of the ceramic plates are connected with the expansion bolts through connecting pieces, and the ceramic plates and the hydraulic concrete structure main body are bonded into a whole through bonding mortar. The invention also discloses a construction process of the hydraulic concrete structure. The block body can be large or small, is simple and convenient and is extremely easy to construct. The ceramic material has excellent corrosion resistance and mechanical property, and can resist corrosion of various acids, alkalis, salts and seawater; the water absorption rate is very low, and the freeze-thaw damage resistance is good; it has high hardness and can resist ice impact; the surface glazing is basically impermeable, the surface energy is lower, the hydraulic structures such as gate piers, piers and the like can be more durable and attractive, the maintenance cost is saved, and the requirements of developing landscape water conservancy and ecological water conservancy at present are met.
Because the hydraulic concrete building has different structural characteristics and different working environments, the hydraulic concrete building is washed by water flow for a long time, is exposed to the erosion environments of sunshine, rain, ice, snow and wind frost, is subjected to the actions of atmospheric pollution, industrial pollution, carbonization of concrete, corrosion of reinforcing steel bars and the like, can be degraded to generate cracks, frost heaving, scouring, cavitation, alkali aggregate reaction, carbonization, corrosion, erosion, microbial corrosion and other diseases, various shells, algae, molds and stains are bred on the surfaces of pool walls, channels and culverts, the aging and damage of a cement base surface are accelerated, the structure is damaged and collapsed seriously, the normal water conveying function of the structure is influenced or limited, the service life of the structure is shortened, the maintenance and renovation cost in the use process of the building is increased, the working benefit and the water quality safety are influenced, economic loss is caused, and resources are seriously wasted, in severe cases, environmental and health problems may also arise.
Disclosure of Invention
The invention aims to solve the problems and the defects, and provides a nano inorganic anti-corrosion, anti-seepage and anti-fouling coating structure for hydraulic concrete by adding a protective layer on the surface of the hydraulic concrete, so that the concrete is prevented from contacting with soil, water flow, atmosphere and other corrosive substances, the aims of corrosion resistance, seepage resistance and anti-fouling are fulfilled, and the service life of the concrete is prolonged.
The technical scheme of the invention is realized as follows:
a nano inorganic anti-corrosion, anti-seepage and anti-fouling coating structure for hydraulic concrete comprises a bi-component high-molecular polymer mortar bonding bottom coating (1), a bi-component high-strength polymer mortar middle coating (2) and a nano anti-corrosion and anti-fouling protective surface coating (3) which are sequentially stacked together; the double-component high-molecular polymer mortar bonding bottom coating (1) is coated on a hydraulic concrete building surface, then a double-component high-strength polymer mortar middle coating (2) is coated on the hydraulic concrete building surface, and finally a nano anti-corrosion and anti-fouling protective surface coating (3) is coated on the hydraulic concrete building surface to form a three-layer coating structure.
According to the technical scheme, the two-component high polymer mortar bonding base coat (1) is formed by mixing, spraying and drying a component A and a component B, wherein the component A comprises the following components in parts by weight: 60 to 80 portions of styrene-acrylic emulsion, 20 to 40 portions of deionized water, 1.5 to 3.5 portions of dispersant, 0.8 to 2.5 portions of antibacterial agent and 1.5 to 3.5 portions of defoaming agent; the component B comprises the following components in parts by weight: 30 to 50 portions of Portland cement (42.5 grade), 8 to 22 portions of white cement, 18 to 40 portions of quartz sand, 8 to 22 portions of heavy calcium powder, 2.5 to 6 portions of metakaolin, 2.5 to 6 portions of latex powder and 0.8 to 3.5 portions of polycarboxylic acid high-efficiency water reducing agent.
The active gene in the polymer molecule exchanges with free molecules and ions on the concrete base surface to generate a special chemical bridge bond, so that very strong adhesion is formed, a tough and compact coating film is generated, micro cracks and capillary gaps in the concrete are effectively filled, a channel connected with the outside is cut off, the capacity of preventing the occurrence of the micro cracks on the surface layer is realized, and the bi-component high-molecular polymer mortar adhesion primer coating (1) is very reliable and applicable.
The two-component high molecular polymer mortar bonding base coat (1), the component A and the component B are mixed according to the ratio of A to B of 1-1.5: 3, mixing and using. And mixing, spraying and drying the component A and the component B to form the double-component high-molecular polymer mortar bonding base coat (1).
The thickness of the bi-component high polymer mortar bonding base coat (1) is 0.3-1.5 mm. The quartz sand is 80-120 meshes. Portland cement grade 42.5 is preferred.
The bi-component high-strength polymer mortar intermediate coat (2) is formed by mixing, spraying and drying a component C and a component D, wherein the component C comprises the following components in parts by weight: 60 to 80 portions of styrene-acrylic emulsion, 20 to 40 portions of deionized water, 1.8 to 4 portions of dispersant, 0.8 to 2.5 portions of antibacterial agent and 1.8 to 3.5 portions of defoaming agent; the component D comprises the following components in parts by weight: 30-50 parts of portland cement, 12-30 parts of white cement, 18-40 parts of quartz sand, 8-22 parts of bauxite, 2.5-6 parts of metakaolin, 2.5-6 parts of barite powder, 2.5-6 parts of cellulose ether and 0.8-3.5 parts of polycarboxylic acid high-efficiency water reducing agent, wherein the polymer emulsion is perfectly combined with the cement and the inorganic filler in the mortar, so that the strength and the wear resistance of the mortar layer are greatly improved, a compact, firm, dust-free, seepage-resistant and chemical erosion-resistant surface is obtained, and the coating (2) in the bi-component high-strength polymer mortar is very reliable and applicable.
When the two-component high-strength polymer mortar intermediate coat (2), the component C and the component D are actually used, the ratio of C to D is 1-1.5: 3, mixing and using. And the component C and the component D are mixed, sprayed and dried to form the bi-component high-strength polymer mortar intermediate coating (2).
The thickness of the coating (2) in the bi-component high-strength polymer mortar is 0.3-1.5 mm. The quartz sand is 80-120 meshes.
The nano anti-corrosion and anti-fouling protective top coating (3) comprises the following components in parts by weight: 25 to 50 parts of nano ceramic sol modified resin, 15 to 40 parts of nano silicon dioxide, 8 to 28 parts of titanium metal nano powder, 8 to 22 parts of isopropanol, 1.8 to 5.5 parts of mica sheet, 0.8 to 2.2 parts of whisker filler and 0.8 to 2.2 parts of surfactant. The nano ceramic sol modified resin has various performance indexes such as corrosion resistance, high temperature resistance, thermal stability, ultraviolet aging resistance and the like, and the nano silicon dioxide and titanium metal nano powder filler and the like greatly improve and improve the performances such as hydrophobicity, stain resistance, acid and alkali resistance, washing resistance and the like of the surface. The nano anti-corrosion and anti-fouling protective surface coating (3) is very reliable and applicable.
The thickness of the nano anti-corrosion and anti-fouling protective top coating (3) is 30-150 mu m.
The technical scheme of the invention adopts the manufacturing technology of organic and inorganic compounds on the formula, combines the characteristics of organic matters and inorganic matters to form a novel compound, the organic and inorganic compounds are not purely physically mixed but form a new compound through chemical bonds, and after the mixing reaction, the defect of poor flexibility of the inorganic matters is improved, the characteristics of hardness, high temperature resistance and the like of the organic matters are improved, and the defect of high-temperature sintering (850 ℃) of the inorganic matters is overcome, so that the film forming temperature is reduced to the normal temperature.
In the technical solution of the present invention, it is further preferable that the two-component high molecular polymer mortar adhesion primer coating (1) is formed by mixing, spraying and drying a component a and a component B, wherein the component a comprises the following components in parts by weight: 65 to 75 parts of styrene-acrylic emulsion, 25 to 35 parts of deionized water, 2 to 3 parts of dispersant, 1 to 2 parts of antibacterial agent and 2 to 3 parts of defoaming agent; the component B comprises the following components in parts by weight: 35 to 45 portions of Portland cement (42.5 grade), 10 to 20 portions of white cement, 20 to 35 portions of quartz sand, 10 to 20 portions of heavy calcium powder, 3 to 5 portions of metakaolin, 3 to 5 portions of latex powder and 1 to 3 portions of polycarboxylic acid high-efficiency water reducing agent.
The thickness of the bi-component high polymer mortar bonding base coat (1) is 0.5-1 mm. The quartz sand is 80-120 meshes. Therefore, under the condition of ensuring that the nano inorganic anti-corrosion, anti-seepage and anti-fouling coating structure has high performance and reliability, the using amount of the bi-component high polymer mortar bonding base coating (1) can be well controlled, thereby being beneficial to controlling the manufacturing cost of the nano inorganic anti-corrosion, anti-seepage and anti-fouling coating structure.
The coating (2) in the bi-component high-strength polymer mortar consists of a component C and a component D, wherein the component C comprises the following components in parts by weight: 65 to 75 parts of styrene-acrylic emulsion, 25 to 35 parts of deionized water, 2 to 3 parts of dispersant, 1 to 2 parts of antibacterial agent and 2 to 3 parts of defoaming agent; the component D comprises the following components in parts by weight: 35 to 45 portions of Portland cement, 15 to 25 portions of white cement, 20 to 35 portions of quartz sand, 10 to 20 portions of bauxite, 3 to 5 portions of metakaolin, 3 to 5 portions of barite powder, 3 to 5 portions of cellulose ether and 1 to 3 portions of polycarboxylic acid high-efficiency water reducing agent.
The thickness of the coating (2) in the bi-component high-strength polymer mortar is 0.5-1 mm. The quartz sand is 80-120 meshes. Therefore, under the condition of ensuring that the nano inorganic anti-corrosion, anti-seepage and anti-fouling coating structure has high performance and reliability, the using amount of the coating (2) in the bi-component high-strength polymer mortar can be well controlled, and the manufacturing cost of the nano inorganic anti-corrosion, anti-seepage and anti-fouling coating structure is favorably controlled.
The nano anti-corrosion and anti-fouling protective top coating (3) comprises the following components in parts by weight: 30 to 45 parts of nano ceramic sol modified resin, 20 to 35 parts of nano silicon dioxide, 10 to 25 parts of titanium metal nano powder, 10 to 20 parts of isopropanol, 2 to 5 parts of mica sheet, 1 to 2 parts of whisker filler and 1 to 2 parts of surfactant.
The thickness of the nano anti-corrosion and anti-fouling protective top coating (3) is 50-100 mu m. Therefore, under the condition of ensuring that the nano inorganic anti-corrosion, anti-seepage and anti-fouling coating structure has high performance and reliability, the dosage of the nano anti-corrosion, anti-fouling and protective surface coating (3) can be well controlled, thereby being beneficial to controlling the manufacturing cost of the nano inorganic anti-corrosion, anti-seepage and anti-fouling coating structure.
More preferably, in the technical solution of the present invention, the two-component high molecular polymer mortar adhesion primer coating (1) comprises a component a and a component B, wherein the component a comprises the following components in parts by weight: 70 parts of styrene-acrylic emulsion, 30 parts of deionized water, 2.5 parts of dispersing agent, 1.5 parts of antibacterial agent and 2.5 parts of defoaming agent; the component B comprises the following components in parts by weight: 40 parts of Portland cement (42.5 grade), 15 parts of white cement, 28 parts of 100-mesh quartz sand, 17.5 parts of heavy calcium powder, 4 parts of metakaolin, 4 parts of latex powder and 2 parts of polycarboxylic acid high-efficiency water reducing agent, wherein active genes in polymer molecules exchange with free molecules and ions on the concrete base surface to generate special chemical bridges to form very strong bonding, and a tough and compact coating film can effectively plug micro cracks and capillary gaps in concrete, separate passages connected with the outside and have the capability of preventing the occurrence of surface micro cracks, and the bi-component high-molecular polymer mortar bonding base coat (1) is very reliable and applicable.
The thickness of the double-component high molecular polymer mortar bonding base coat (1) is 0.8 mm. Therefore, under the condition of ensuring that the nano inorganic anti-corrosion, anti-seepage and anti-fouling coating structure has high performance and reliability, the using amount of the bi-component high polymer mortar bonding base coating (1) can be well controlled, thereby being beneficial to controlling the manufacturing cost of the nano inorganic anti-corrosion, anti-seepage and anti-fouling coating structure.
The coating (2) in the bi-component high-strength polymer mortar consists of a component C and a component D, wherein the component C comprises the following components in parts by weight: 70 parts of styrene-acrylic emulsion, 30 parts of deionized water, 2.5 parts of dispersing agent, 1.5 parts of antibacterial agent and 2.5 parts of defoaming agent; the component D comprises the following components in parts by weight: 40 parts of portland cement (42.5 grade), 20 parts of white cement, 27.5 parts of 100-mesh quartz sand, 15 parts of bauxite, 4 parts of metakaolin, 4 parts of barite powder, 4 parts of cellulose ether and 2 parts of polycarboxylic acid high-efficiency water reducing agent, wherein the polymer emulsion is perfectly combined with cement and inorganic filler in mortar, so that the strength and the wear resistance of a mortar layer are greatly improved, and a compact, firm, dust-proof, seepage-resistant and chemical corrosion-resistant surface is obtained, and the coating (2) in the bi-component high-strength polymer mortar is very reliable and applicable.
The thickness of the coating (2) in the bi-component high-strength polymer mortar is 0.8 mm. Therefore, under the condition of ensuring that the nano inorganic anti-corrosion, anti-seepage and anti-fouling coating structure has high performance and reliability, the using amount of the coating (2) in the bi-component high-strength polymer mortar can be well controlled, and the manufacturing cost of the nano inorganic anti-corrosion, anti-seepage and anti-fouling coating structure is favorably controlled.
The nano anti-corrosion and anti-fouling protective top coating (3) comprises the following components in parts by weight: 40 parts of nano ceramic sol modified resin, 27.5 parts of nano silicon dioxide, 17.5 parts of titanium metal nano powder, 15 parts of isopropanol, 3.5 parts of mica sheet, 1.5 parts of whisker filler and 1.5 parts of surfactant. The nano ceramic sol modified resin has various performance indexes such as corrosion resistance, high temperature resistance, thermal stability, ultraviolet aging resistance and the like, and the nano silicon dioxide and titanium metal nano powder filler and the like greatly improve and improve the performances such as hydrophobicity, stain resistance, acid and alkali resistance, washing resistance and the like of the surface. The nano anti-corrosion and anti-fouling protective surface coating (3) is very reliable and applicable.
The thickness of the nano anti-corrosion and anti-fouling protective surface coating (3) is 80 mu m. Therefore, under the condition of ensuring that the nano inorganic anti-corrosion, anti-seepage and anti-fouling coating structure has high performance and reliability, the dosage of the nano anti-corrosion, anti-fouling and protective surface coating (3) can be well controlled, and the control of the manufacturing cost of the nano inorganic anti-corrosion, anti-seepage and anti-fouling coating structure is facilitated.
The invention has the beneficial effects that:
according to the invention, the high molecular polymer mortar is used as the base coat, has strong permeability, can permeate into the concrete by 2-5mm, fully reacts with free molecules in the concrete, is bonded by good chemical bonds, and is integrated with the concrete after being cured, so that the adhesive force of the coating and the concrete is enhanced, micro cracks and capillary gaps in the concrete are effectively plugged, and the concrete structure is not peeled or peeled, so that the concrete structure has a lasting protection function and better compactness;
the invention has good physical properties, high surface hardness, good toughness, consistent thermal expansion and cold shrinkage rate with concrete, meets the requirements of shrinkage and expansion of concrete, and improves the crack resistance, freeze-thaw resistance and permeability resistance of the surface layer;
according to the invention, the nano anti-corrosion and anti-fouling protective surface coating is compact after being cured, so that the physical properties of the surface layer and the super-hydrophobicity of the surface are improved, and the effects of bacteriostasis, mildew resistance, chemical corrosion resistance, stain resistance, scratch resistance, ageing resistance, non-sticking, easiness in cleaning and the like are achieved;
the invention solves the problems that the surface of hydraulic concrete is easy to suffer from the adhesion growth of various shellfish, algae, mould and various microorganisms through the nanometer anticorrosion and anti-fouling protective surface coating, also solves the difficult problems that stains are difficult to clean and the like, and avoids the phenomenon that the surface layer is damaged or falls off to rework by adopting mechanical cleaning due to the wear resistance, the machine washing resistance and the anti-scouring property of the surface layer;
the invention is in line with simple process, easy operation and controllable process, passes the material safety evaluation standard through the detection of the detection center, has zero volatile organic compounds, is nontoxic and nuisanceless, and does not cause harm to water quality, human bodies and environment;
the invention has strong weather resistance, ultraviolet resistance, radiation resistance, oxidation resistance and aging resistance, can endow the old base material with new appearance and long-term protective performance, can play a good role in decorating various damaged or new and old hydraulic concrete interfaces, keeps the interfaces to be durably clean, novel in color and high in glossiness, and cannot age or deteriorate;
the invention can reduce the cleaning frequency, reduce a large amount of maintenance cost and labor force, and ensure that the water transfer work is operated efficiently.
In order to make the purpose and technical solution of the embodiments of the present invention clearer, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the implementation examples of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be made by a person skilled in the art without inventive effort based on the described embodiments of the invention, fall within the scope of protection of the invention.
Drawings
FIG. 1 is a schematic cross-sectional view of the present invention;
FIG. 2 is a schematic structural diagram of the present invention in use.
Wherein, the reference numbers:
1, a double-component high-molecular polymer mortar bonding base coat;
2, coating in bi-component high-strength polymer mortar;
3 nanometer anticorrosion and anti-fouling protective surface coating;
4 hydraulic concrete.
Detailed Description
A specific embodiment of the present invention is further described below with reference to the accompanying drawings, and the specific embodiment is for the purpose of describing the technical solution in detail, but not for the purpose of limiting the technical solution.
As shown in figure 1, the nano inorganic anti-corrosion, anti-seepage and anti-fouling coating structure for the hydraulic concrete is characterized by comprising a double-component high-molecular polymer mortar bonding bottom coating (1), a double-component high-strength polymer mortar intermediate coating (2) and a nano anti-corrosion and anti-fouling protective surface coating (3) which are sequentially stacked together. The nano inorganic anti-corrosion, anti-seepage and anti-fouling coating structure greatly enhances the physical properties of the interface of the hydraulic concrete, is compact after being cured, has super-hydrophobic properties on the surface, has the effects of bacteriostasis, mildew prevention, chemical corrosion resistance, stain resistance, scratch resistance, aging resistance, non-stickiness, easy cleaning and the like, solves the problem that the surface of the hydraulic concrete is easy to suffer from the adhesion growth of various shellfish, algae, mildew and various microorganisms, and also solves the problem that stains are difficult to clean and the like; the wear resistance, the machine washing resistance and the scouring resistance of the coating avoid the phenomenon that the coating is damaged or falls off by adopting mechanical washing and needs to be reworked again; the invention has strong weather resistance, ultraviolet resistance, radiation resistance, oxidation resistance and aging resistance, can endow old base materials with new appearance and long-term protective performance, can play a good decorative effect on various damaged or new and old hydraulic concrete interfaces, keeps the base surface to be permanently clean, keeps the color and luster of the interface, has simple process, easy operation and controllable working procedure, has zero volatile organic matter, is nontoxic and pollution-free, does not cause harm to water quality, human bodies and environment, can reduce cleaning frequency in the operation process, reduces a large amount of maintenance cost and labor force, enables water transfer work to efficiently operate, is very suitable for being applied to concrete structures of various water conservancy buildings and is used as a permanent protective coating.
As shown in fig. 2, when the nano inorganic anti-corrosion, anti-seepage and anti-fouling coating structure is used, the nano inorganic anti-corrosion, anti-seepage and anti-fouling coating structure is constructed on the surface of the hydraulic concrete (4) in the following way: the surface coating is characterized in that the bi-component high-molecular polymer mortar bonding primer (1) is coated on the surface of hydraulic concrete 4 through spraying construction, the bi-component high-strength polymer mortar intermediate coat (2) is coated on the surface layer of the bi-component high-molecular polymer mortar bonding primer (1) through spraying construction, and the nano anti-corrosion and anti-fouling protective surface coat (3) is coated on the surface layer of the bi-component high-strength polymer mortar intermediate coat (2) through spraying construction. Therefore, the nano inorganic anti-corrosion, anti-seepage and anti-fouling coating structure can be attached to the hydraulic concrete base surface, and the use requirement of the nano inorganic anti-corrosion, anti-seepage and anti-fouling coating structure is met. The nano inorganic anti-corrosion, anti-seepage and anti-fouling coating structure greatly enhances the physical properties of the interface of the hydraulic concrete, is compact after being cured, has super-hydrophobic properties on the surface, has the effects of bacteriostasis, mildew prevention, chemical corrosion resistance, stain resistance, scratch resistance, aging resistance, non-stickiness, easy cleaning and the like, solves the problem that the surface of the hydraulic concrete is easy to suffer from the adhesion growth of various shellfish, algae, mildew and various microorganisms, and also solves the problem that stains are difficult to clean and the like; the wear resistance, the machine washing resistance and the scouring resistance of the coating avoid the phenomenon that the coating is damaged or falls off by adopting mechanical washing and needs to be reworked again; the invention has strong weather resistance, ultraviolet resistance, radiation resistance, oxidation resistance and aging resistance, can endow old base materials with new appearance and long-term protective performance, can play a good decorative effect on various damaged or new and old hydraulic concrete interfaces, keeps the base surface to be permanently clean, keeps the color and luster of the interface, has simple process, easy operation and controllable working procedure, has zero volatile organic matter, is nontoxic and pollution-free, does not cause harm to water quality, human bodies and environment, can reduce cleaning frequency in the operation process, reduces a large amount of maintenance cost and labor force, enables water transfer work to efficiently operate, is very suitable for being applied to concrete structures of various water conservancy buildings and is used as a permanent protective coating.
The above description further describes a specific embodiment of the present invention with reference to specific examples, which are intended for the detailed description of the present invention and are not intended to limit the present invention.
Example 1
Double-component high molecular polymer mortar bonding bottom coat (1)
Component a, weighing: 65 kg of styrene-acrylic emulsion, 25 kg of deionized water, 2 kg of dispersing agent, 1 kg of antibacterial agent and 2 kg of defoaming agent; mixing and stirring the weighed materials to obtain a component A for later use;
component B, weighing: 35 kg of Portland cement (42.5 grade), 10 kg of white cement, 20 kg of 100-mesh quartz sand, 10 kg of heavy calcium powder, 3 kg of metakaolin, 3 kg of latex powder and 1 kg of polycarboxylic acid high-efficiency water reducing agent; mixing and stirring the weighed materials to obtain a component B for later use;
component A, component B is prepared according to the following ratio of 1: 3, uniformly mixing and stirring, spraying the mixture on the surface of a hydraulic concrete sample, and drying, wherein the hydraulic concrete sample is 10cmX10cm in specification, and forming a bi-component high polymer mortar bonding base coat (1). The thickness of the double-component high-molecular polymer mortar bonding base coat (1) is 1 mm.
Double-component high-strength polymer mortar middle coating (2)
Component C, weighing: 65 kg of styrene-acrylic emulsion, 25 kg of deionized water, 2 kg of dispersing agent, 1 kg of antibacterial agent and 2 kg of defoaming agent; mixing and stirring the weighed materials to obtain a component C for later use;
component D, weighing: 35 kg of Portland cement (42.5 grade), 15 kg of white cement, 20 kg of 100-mesh quartz sand, 10 kg of bauxite, 3 kg of metakaolin, 3 kg of barite powder, 3 kg of cellulose ether and 1 kg of polycarboxylic acid high-efficiency water reducing agent; and mixing and stirring the weighed materials to obtain a component D for later use.
Component C, component D is prepared according to the following weight ratio of 1.5: 3, uniformly mixing and stirring, spraying the mixture on the surface of the hydraulic concrete sample sprayed with the double-component high-strength polymer mortar bonding primer layer (1), and drying to form a double-component high-strength polymer mortar intermediate coating (2). The thickness of the coating (2) in the bi-component high-strength polymer mortar is 0.5 mm.
Nano antiseptic antifouling protective coating (3)
Weighing: 30 parts of nano ceramic sol modified resin, 20 kg of nano silicon dioxide, 10 kg of titanium metal nano powder, 10 kg of isopropanol, 2 kg of mica sheet, 1 kg of whisker filler and 1 kg of surfactant. And (3) mixing and stirring the weighed materials uniformly, spraying the mixture on the surface of the sample sprayed with the coating (2) in the bi-component high-strength polymer mortar, and drying to form the nano anti-corrosion and anti-fouling protective surface coating (3). The thickness of the nano anti-corrosion and anti-fouling protective surface coating (3) is 50 microns.
The hydraulic concrete sample sprayed with the double-component high-strength polymer mortar bonding bottom coating (1), the double-component high-strength polymer mortar middle coating (2) and the nano anti-corrosion anti-fouling protective top coating (3) is numbered and inspected.
Example 2
Double-component high molecular polymer mortar bonding bottom coat (1)
Component a, weighing: 75 kg of styrene-acrylic emulsion, 35 kg of deionized water, 3 kg of dispersing agent, 2 kg of antibacterial agent and 3 kg of defoaming agent; mixing and stirring the weighed materials to obtain a component A for later use;
component B, weighing: 45 kg of Portland cement (42.5 grade), 20 kg of white cement, 35 kg of 100-mesh quartz sand, 20 kg of heavy calcium powder, 5 kg of metakaolin, 5 kg of latex powder and 3 kg of polycarboxylic acid high-efficiency water reducing agent; mixing and stirring the weighed materials to obtain a component B for later use;
component A, component B is prepared according to the following ratio of 1: 3, uniformly mixing and stirring, spraying the mixture on the surface of a hydraulic concrete sample, and drying, wherein the hydraulic concrete sample is 10cmX10cm in specification, and forming a bi-component high polymer mortar bonding base coat (1). The thickness of the double-component high-molecular polymer mortar bonding base coat (1) is 1 mm.
Double-component high-strength polymer mortar middle coating (2)
Component C, weighing: 75 kg of styrene-acrylic emulsion, 35 kg of deionized water, 3 kg of dispersing agent, 2 kg of antibacterial agent and 3 kg of defoaming agent; mixing and stirring the weighed materials to obtain a component C for later use;
component D, weighing: 45 kg of portland cement (42.5 grade), 25 kg of white cement, 35 kg of 100-mesh quartz sand, 20 kg of bauxite, 5 kg of metakaolin, 5 kg of barite powder, 5 kg of cellulose ether and 3 kg of polycarboxylic acid high-efficiency water reducing agent; and mixing and stirring the weighed materials to obtain a component D for later use.
Component C, component D is prepared according to the following weight ratio of 1.5: 3, uniformly mixing and stirring, spraying the mixture on the surface of the hydraulic concrete sample sprayed with the double-component high-strength polymer mortar bonding primer layer (1), and drying to form a double-component high-strength polymer mortar intermediate coating (2). The thickness of the coating (2) in the bi-component high-strength polymer mortar is 1 mm.
Nano antiseptic antifouling protective coating (3)
Weighing: 45 parts of nano ceramic sol modified resin, 35 kg of nano silicon dioxide, 25 kg of titanium metal nano powder, 20 kg of isopropanol, 5 kg of mica sheet, 2 kg of whisker filler and 2 kg of surfactant. And (3) mixing and stirring the weighed materials uniformly, spraying the mixture on the surface of the sample sprayed with the coating (2) in the bi-component high-strength polymer mortar, and drying to form the nano anti-corrosion and anti-fouling protective surface coating (3). The thickness of the nano anti-corrosion and anti-fouling protective surface coating (3) is 100 mu m.
The hydraulic concrete sample sprayed with the double-component high-strength polymer mortar bonding bottom coating (1), the double-component high-strength polymer mortar middle coating (2) and the nano anti-corrosion anti-fouling protective top coating (3) is numbered and inspected.
Example 3
Double-component high molecular polymer mortar bonding bottom coat (1)
Component a, weighing: 70 kg of styrene-acrylic emulsion, 30 kg of deionized water, 2.5 kg of dispersing agent, 1.5 kg of antibacterial agent and 2.5 kg of defoaming agent; mixing and stirring the weighed materials to obtain a component A for later use;
component B, weighing: 40 kg of Portland cement (42.5 grade), 15 kg of white cement, 28 kg of 100-mesh quartz sand, 17.5 kg of heavy calcium powder, 4 kg of metakaolin, 4 kg of latex powder and 2 kg of polycarboxylic acid high-efficiency water reducing agent; mixing and stirring the weighed materials to obtain a component B for later use;
component A, component B is prepared according to the following ratio of 1: 3, uniformly mixing and stirring, spraying the mixture on the surface of a hydraulic concrete sample, and drying, wherein the hydraulic concrete sample is 10cmX10cm in specification, and forming a bi-component high polymer mortar bonding base coat (1). The thickness of the double-component high molecular polymer mortar bonding base coat (1) is 0.8 mm.
Double-component high-strength polymer mortar middle coating (2)
Component C, weighing: 70 kg of styrene-acrylic emulsion, 30 kg of deionized water, 2.5 kg of dispersing agent, 1.5 kg of antibacterial agent and 2.5 kg of defoaming agent; mixing and stirring the weighed materials to obtain a component C for later use;
component D, weighing: 40 kg of Portland cement (42.5 grade), 20 kg of white cement, 27.5 kg of 100-mesh quartz sand, 15 kg of bauxite, 4 kg of metakaolin, 4 kg of barite powder, 4 kg of cellulose ether and 2 kg of polycarboxylic acid high-efficiency water reducing agent; and mixing and stirring the weighed materials to obtain a component D for later use.
Component C, component D is prepared according to the following weight ratio of 1.5: 3, uniformly mixing and stirring, spraying the mixture on the surface of the hydraulic concrete sample sprayed with the double-component high-strength polymer mortar bonding primer layer (1), and drying to form a double-component high-strength polymer mortar intermediate coating (2). The thickness of the coating (2) in the bi-component high-strength polymer mortar is 0.8 mm.
Nano antiseptic antifouling protective coating (3)
Weighing: 40 parts of nano ceramic sol modified resin, 27.5 kg of nano silicon dioxide, 17.5 kg of titanium metal nano powder, 15 kg of isopropanol, 3.5 kg of mica sheet, 1.5 kg of whisker filler and 1.5 kg of surfactant. And (3) mixing and stirring the weighed materials uniformly, spraying the mixture on the surface of the sample sprayed with the coating (2) in the bi-component high-strength polymer mortar, and drying to form the nano anti-corrosion and anti-fouling protective surface coating (3). The thickness of the nano anti-corrosion and anti-fouling protective surface coating (3) is 80 mu m.
The hydraulic concrete sample sprayed with the double-component high-strength polymer mortar bonding bottom coating (1), the double-component high-strength polymer mortar middle coating (2) and the nano anti-corrosion anti-fouling protective top coating (3) is numbered and inspected.
Example 4
Double-component high molecular polymer mortar bonding bottom coat (1)
Component a, weighing: 60 kg of styrene-acrylic emulsion, 20 kg of deionized water, 1.5 kg of dispersing agent, 0.8 kg of antibacterial agent and 1.5 kg of defoaming agent; mixing and stirring the weighed materials to obtain a component A for later use;
component B, weighing: 30 kg of Portland cement (42.5 grade), 8 kg of white cement, 18 kg of 100-mesh quartz sand, 8 kg of heavy calcium powder, 2.5 kg of metakaolin, 2.5 kg of latex powder and 0.8 kg of polycarboxylic acid high-efficiency water reducing agent; mixing and stirring the weighed materials to obtain a component B for later use;
component A, component B according to a weight ratio of 1.5: 3, uniformly mixing and stirring, spraying the mixture on the surface of a hydraulic concrete sample, and drying, wherein the hydraulic concrete sample is 10cmX10cm in specification, and forming a bi-component high polymer mortar bonding base coat (1). The thickness of the double-component high-molecular polymer mortar bonding base coat (1) is 1.5 mm.
Double-component high-strength polymer mortar middle coating (2)
Component C, weighing: 60 kg of styrene-acrylic emulsion, 20 kg of deionized water, 1.8 kg of dispersing agent, 0.8 kg of antibacterial agent and 1.8 kg of defoaming agent; mixing and stirring the weighed materials to obtain a component C for later use;
component D, weighing: 30 kg of Portland cement (42.5 grade), 12 kg of white cement, 18 kg of 100-mesh quartz sand, 8 kg of bauxite, 2.5 kg of metakaolin, 2.5 kg of barite powder, 2.5 kg of cellulose ether and 0.8 kg of polycarboxylic acid high-efficiency water reducing agent; and mixing and stirring the weighed materials to obtain a component D for later use.
Component C, component D is prepared according to the following weight ratio of 1.5: 3, uniformly mixing and stirring, spraying the mixture on the surface of the hydraulic concrete sample sprayed with the double-component high-strength polymer mortar bonding primer layer (1), and drying to form a double-component high-strength polymer mortar intermediate coating (2). The thickness of the coating (2) in the bi-component high-strength polymer mortar is 1.5 mm.
Nano antiseptic antifouling protective coating (3)
Weighing: 25 parts of nano ceramic sol modified resin, 15 kg of nano silicon dioxide, 8 kg of titanium metal nano powder, 8 kg of isopropanol, 1.8 kg of mica sheet, 0.8 kg of whisker filler and 0.8 kg of surfactant. And (3) mixing and stirring the weighed materials uniformly, spraying the mixture on the surface of the sample sprayed with the coating (2) in the bi-component high-strength polymer mortar, and drying to form the nano anti-corrosion and anti-fouling protective surface coating (3). The thickness of the nano anti-corrosion and anti-fouling protective top coating (3) is 150 mu m.
The hydraulic concrete sample sprayed with the double-component high-strength polymer mortar bonding bottom coating (1), the double-component high-strength polymer mortar middle coating (2) and the nano anti-corrosion anti-fouling protective top coating (3) is numbered and inspected.
Example 5
Double-component high molecular polymer mortar bonding bottom coat (1)
Component a, weighing: 80 kg of styrene-acrylic emulsion, 40 kg of deionized water, 3.5 kg of dispersing agent, 2.5 kg of antibacterial agent and 3.5 kg of defoaming agent; mixing and stirring the weighed materials to obtain a component A for later use;
component B, weighing: 50 kg of Portland cement (42.5 grade), 22 kg of white cement, 40 kg of 100-mesh quartz sand, 22 kg of heavy calcium powder, 6 kg of metakaolin, 6 kg of latex powder and 3.5 kg of polycarboxylic acid high-efficiency water reducing agent; mixing and stirring the weighed materials to obtain a component B for later use;
component A, component B according to a weight ratio of 1.5: 3, uniformly mixing and stirring, spraying the mixture on the surface of a hydraulic concrete sample, and drying, wherein the hydraulic concrete sample is 10cmX10cm in specification, and forming a bi-component high polymer mortar bonding base coat (1). The thickness of the double-component high molecular polymer mortar bonding base coat (1) is 0.3 mm.
Double-component high-strength polymer mortar middle coating (2)
Component C, weighing: 80 kg of styrene-acrylic emulsion, 40 kg of deionized water, 4 kg of dispersing agent, 2.5 kg of antibacterial agent and 3.5 kg of defoaming agent; mixing and stirring the weighed materials to obtain a component C for later use;
component D, weighing: 50 kg of Portland cement (42.5 grade), 30 kg of white cement, 40 kg of 100-mesh quartz sand, 22 kg of bauxite, 6 kg of metakaolin, 6 kg of barite powder, 6 kg of cellulose ether and 3.5 kg of polycarboxylic acid high-efficiency water reducing agent; and mixing and stirring the weighed materials to obtain a component D for later use.
Component C, component D is prepared according to the following weight ratio of 1.5: 3, uniformly mixing and stirring, spraying the mixture on the surface of the hydraulic concrete sample sprayed with the double-component high-strength polymer mortar bonding primer layer (1), and drying to form a double-component high-strength polymer mortar intermediate coating (2). The thickness of the coating (2) in the bi-component high-strength polymer mortar is 0.3 mm.
Nano antiseptic antifouling protective coating (3)
Weighing: 50 parts of nano ceramic sol modified resin, 40 kg of nano silicon dioxide, 28 kg of titanium metal nano powder, 22 kg of isopropanol, 5.5 kg of mica sheet, 2.2 kg of whisker filler and 2.2 kg of surfactant. And (3) mixing and stirring the weighed materials uniformly, spraying the mixture on the surface of the sample sprayed with the coating (2) in the bi-component high-strength polymer mortar, and drying to form the nano anti-corrosion and anti-fouling protective surface coating (3). The thickness of the nano anti-corrosion and anti-fouling protective surface coating (3) is 30 mu m.
The hydraulic concrete sample sprayed with the double-component high-strength polymer mortar bonding bottom coating (1), the double-component high-strength polymer mortar middle coating (2) and the nano anti-corrosion anti-fouling protective top coating (3) is numbered and inspected.
The following tests 1 to 5 were carried out on the hydraulic concrete samples obtained in examples 1 to 5, which were sprayed with the two-component high-strength polymer mortar adhesion primer layer (1), the two-component high-strength polymer mortar intermediate coating layer (2), and the nano anticorrosive antifouling protective top coating layer (3) in this order.
Test 1-antimicrobial test
TABLE 1 antibacterial Properties (average number of recovered bacteria after 24 hours (X105))
A represents Escherichia coli; b represents Staphylococcus aureus.
Samples 1-5 and blank control samples, 12 samples per group; specification: 5cm x 5 cm.
The values in table 1 are the average of the 12 sample tests per group; the test method comprises the following steps: GB/T21866-2008;
as can be seen from table 1, the products obtained in examples 1 to 5 have the antibacterial rate of greater than 90% for inhibiting escherichia coli and staphylococcus aureus, and have ideal antibacterial effect compared with the blank control sample.
Test 2-adhesion measurement
The test is carried out according to GB/T5210-2006, the adhesive force test result of the samples 1-5 is 3MPa-4.7MPa, and the industrial standard requirement is met.
Test 3-impact resistance test
Samples 1-5, impact resistance (40cm, 1000g) was determined according to GB/T1732-; has good impact resistance.
Test 4-drug resistance test
The experimental method comprises the following steps: 0.2ml of each reagent was dropped on the surface, covered with a watch dish, left at room temperature for 24 hours, washed with water, and then the surface was observed.
Sample preparation: examples 1-5 correspond to samples 1-5, each group having 12 samples; specification: 5cm x 5 cm.
TABLE 2 (. DELTA.no change A-up slightly changed)
| Test article | Determination of results |
| 20% vinegar | △ |
| 10% sulfuric acid | △ |
| 98% sulfuric acid | ▲ |
| 10% hydrochloric acid | △ |
| 36% hydrochloric acid | ▲ |
| Wang Shui | ▲ |
| 20% nitric acid | ▲ |
| 60% nitric acid | ▲ |
| 60% chloric acid | ▲ |
| 20% phosphoric acid | ▲ |
| 85% phosphoric acid | ▲ |
| 28% ammonia water | △ |
| Alcohol | △ |
| Acetone (II) | △ |
As can be seen from Table 2 above, the samples obtained in examples 1 to 5 were resistant to the corrosive action of 20% vinegar, 10% sulfuric acid, 10% hydrochloric acid, 28% ammonia water, alcohol and acetone, and were not resistant to the corrosion by strong acids such as 98% sulfuric acid, 36% hydrochloric acid, aqua regia, 20% nitric acid, 60% chloric acid, 20% phosphoric acid and 85% phosphoric acid. Has ideal anti-corrosion property.
Test 5-stain resistance test
The experimental method comprises the following steps: dropping 0.2ml of each reagent on the surface, covering the surface with a dish, standing at room temperature for 24 hours, and then washing the surface with water;
sample preparation: examples 1-5 correspond to samples 1-5, each group having 12 samples; specification: 5cm x 5 cm.
TABLE 3 (. DELTA.no change A-up slightly changed)
| Test article | Determination of results |
| Butter oil | △ |
| Salt | △ |
| Kerosene oil | △ |
| Detergent in food ware | △ |
| Crayon | △ |
| Ball-point pen | △ |
| Vinegar | △ |
| Ink (Black) | △ |
| Oil pen (Red) | △ |
| Oil pen (blue) | △ |
| Water pen (cyan) | △ |
| Tobacco tar | △ |
As can be seen from Table 3, the samples obtained in examples 1 to 5 had desirable contamination resistance against various contaminants in the surface.
The above-mentioned embodiments are merely descriptions of the preferred embodiments of the present invention, and do not limit the technical concept and the protection scope of the present invention, and various modifications and improvements made to the technical concept by those skilled in the art without departing from the design concept of the present invention shall fall within the protection scope of the present invention.
Claims (9)
1. A nanometer inorganic anticorrosion, seepage-proofing and anti-fouling coating structure for hydraulic concrete is characterized in that the nanometer inorganic anticorrosion, seepage-proofing and anti-fouling coating structure comprises a double-component high-molecular polymer mortar bonding bottom coating (1), a double-component high-strength polymer mortar middle coating (2) and a nanometer anticorrosion and anti-fouling protective surface coating (3) which are sequentially stacked together; the double-component high-molecular polymer mortar bonding bottom coating (1) is coated on a hydraulic concrete building surface, then a double-component high-strength polymer mortar middle coating (2) is coated on the hydraulic concrete building surface, and finally a nano anti-corrosion and anti-fouling protective surface coating (3) is coated on the hydraulic concrete building surface to form a three-layer coating structure.
2. The nano inorganic anti-corrosion, anti-seepage and anti-fouling coating structure for the hydraulic concrete according to claim 1, wherein the bi-component high polymer mortar bonding primer coating (1) is formed by mixing, spraying and drying a component A and a component B, wherein the component A comprises the following components in parts by weight: 60 to 80 portions of styrene-acrylic emulsion, 20 to 40 portions of deionized water, 1.5 to 3.5 portions of dispersant, 0.8 to 2.5 portions of antibacterial agent and 1.5 to 3.5 portions of defoaming agent; the component B comprises the following components in parts by weight: 30 to 50 parts of Portland cement (42.5 grade), 8 to 22 parts of white cement, 18 to 40 parts of quartz sand, 8 to 22 parts of heavy calcium powder, 2.5 to 6 parts of metakaolin, 2.5 to 6 parts of latex powder and 0.8 to 3.5 parts of polycarboxylic acid high-efficiency water reducing agent; the two-component high molecular polymer mortar bonding base coat (1), the component A and the component B are mixed according to the ratio of A to B of 1-1.5: 3, mixing and using.
3. The nano inorganic anti-corrosion, anti-seepage and anti-fouling coating structure for the hydraulic concrete according to claim 1, wherein the bi-component high-strength polymer mortar intermediate coating (2) is formed by mixing, spraying and drying a component C and a component D, wherein the component C comprises the following components in parts by weight: 60 to 80 portions of styrene-acrylic emulsion, 20 to 40 portions of deionized water, 1.8 to 4 portions of dispersant, 0.8 to 2.5 portions of antibacterial agent and 1.8 to 3.5 portions of defoaming agent; the component D comprises the following components in parts by weight: 30 to 50 portions of Portland cement, 12 to 30 portions of white cement, 18 to 40 portions of quartz sand, 8 to 22 portions of bauxite, 2.5 to 6 portions of metakaolin, 2.5 to 6 portions of barite powder, 2.5 to 6 portions of cellulose ether and 0.8 to 3.5 portions of polycarboxylic acid high-efficiency water reducing agent; when the two-component high-strength polymer mortar intermediate coat (2), the component C and the component D are actually used, the ratio of C to D is 1-1.5: 3, mixing and using.
4. The nano inorganic anti-corrosion, anti-seepage and anti-fouling coating structure for the hydraulic concrete according to claim 1, wherein the nano anti-corrosion and anti-fouling protective coating (3) comprises the following components in parts by weight: 25 to 50 parts of nano ceramic sol modified resin, 15 to 40 parts of nano silicon dioxide, 8 to 28 parts of titanium metal nano powder, 8 to 22 parts of isopropanol, 1.8 to 5.5 parts of mica sheet, 0.8 to 2.2 parts of whisker filler and 0.8 to 2.2 parts of surfactant.
5. The nano inorganic anti-corrosion, anti-seepage and anti-fouling coating structure for the hydraulic concrete according to any one of claims 1 to 4, wherein the two-component high polymer mortar bonding primer coating (1) is formed by mixing, spraying and drying a component A and a component B, wherein the component A comprises the following components in parts by weight: 65 to 75 parts of styrene-acrylic emulsion, 25 to 35 parts of deionized water, 2 to 3 parts of dispersant, 1 to 2 parts of antibacterial agent and 2 to 3 parts of defoaming agent; the component B comprises the following components in parts by weight: 35 to 45 parts of Portland cement (42.5 grade), 10 to 20 parts of white cement, 20 to 35 parts of quartz sand, 10 to 20 parts of heavy calcium powder, 3 to 5 parts of metakaolin, 3 to 5 parts of latex powder and 1 to 3 parts of polycarboxylic acid high-efficiency water reducing agent;
the coating (2) in the bi-component high-strength polymer mortar consists of a component C and a component D, wherein the component C comprises the following components in parts by weight: 65 to 75 parts of styrene-acrylic emulsion, 25 to 35 parts of deionized water, 2 to 3 parts of dispersant, 1 to 2 parts of antibacterial agent and 2 to 3 parts of defoaming agent; the component D comprises the following components in parts by weight: 35 to 45 parts of portland cement, 15 to 25 parts of white cement, 20 to 35 parts of quartz sand, 10 to 20 parts of bauxite, 3 to 5 parts of metakaolin, 3 to 5 parts of barite powder, 3 to 5 parts of cellulose ether and 1 to 3 parts of polycarboxylic acid high-efficiency water reducing agent;
the nano anti-corrosion and anti-fouling protective top coating (3) comprises the following components in parts by weight: 30 to 45 parts of nano ceramic sol modified resin, 20 to 35 parts of nano silicon dioxide, 10 to 25 parts of titanium metal nano powder, 10 to 20 parts of isopropanol, 2 to 5 parts of mica sheet, 1 to 2 parts of whisker filler and 1 to 2 parts of surfactant.
6. The nano inorganic anti-corrosion, anti-seepage and anti-fouling coating structure for the hydraulic concrete according to claim 1, wherein the bi-component high polymer mortar bonding primer coating (1) comprises a component A and a component B, wherein the component A comprises the following components in parts by weight: 70 parts of styrene-acrylic emulsion, 30 parts of deionized water, 2.5 parts of dispersing agent, 1.5 parts of antibacterial agent and 2.5 parts of defoaming agent; the component B comprises the following components in parts by weight: 40 parts of Portland cement (42.5 grade), 15 parts of white cement, 28 parts of 100-mesh quartz sand, 17.5 parts of heavy calcium powder, 4 parts of metakaolin, 4 parts of latex powder and 2 parts of polycarboxylic acid high-efficiency water reducing agent;
the coating (2) in the bi-component high-strength polymer mortar consists of a component C and a component D, wherein the component C comprises the following components in parts by weight: 70 parts of styrene-acrylic emulsion, 30 parts of deionized water, 2.5 parts of dispersing agent, 1.5 parts of antibacterial agent and 2.5 parts of defoaming agent; the component D comprises the following components in parts by weight: 40 parts of portland cement (42.5 grade), 20 parts of white cement, 27.5 parts of 100-mesh quartz sand, 15 parts of bauxite, 4 parts of metakaolin, 4 parts of barite powder, 4 parts of cellulose ether and 2 parts of polycarboxylic acid high-efficiency water reducing agent;
the nano anti-corrosion and anti-fouling protective top coating (3) comprises the following components in parts by weight: 40 parts of nano ceramic sol modified resin, 27.5 parts of nano silicon dioxide, 17.5 parts of titanium metal nano powder, 15 parts of isopropanol, 3.5 parts of mica sheet, 1.5 parts of whisker filler and 1.5 parts of surfactant.
7. The nano inorganic anti-corrosion, anti-seepage and anti-fouling coating structure for the hydraulic concrete according to any one of claims 1 to 4, wherein the thickness of the bi-component high polymer mortar bonding primer coating (1) is 0.3-1.5 mm; preferably, the thickness of the bi-component high-molecular polymer mortar bonding primer (1) is 0.5-1 mm; most preferably, the thickness of the two-component high molecular polymer mortar bonding base coat (1) is 0.8 mm.
8. The nano inorganic anti-corrosion, anti-seepage and anti-fouling coating structure for the hydraulic concrete according to any one of claims 1 to 4, wherein the thickness of the coating (2) in the bi-component high-strength polymer mortar is 0.3-1.5 mm; preferably, the thickness of the coating (2) in the bi-component high-strength polymer mortar is 0.5-1 mm; more preferably, the thickness of the coating (2) in the two-component high-strength polymer mortar is 0.8 mm.
9. The nano inorganic corrosion-prevention, seepage-prevention and anti-fouling coating structure for the hydraulic concrete according to any one of claims 1 to 4, wherein the thickness of the nano corrosion-prevention and anti-fouling protection surface coating (3) is 30 to 150 μm; preferably, the thickness of the nano anti-corrosion and anti-fouling protective surface coating (3) is 50-100 mu m; more preferably, the thickness of the nano antiseptic antifouling protective surface coating (3) is 80 μm.
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