CN116730703A - Water-based solvent type permeable crystalline waterproof and anticorrosive material for concrete - Google Patents
Water-based solvent type permeable crystalline waterproof and anticorrosive material for concrete Download PDFInfo
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- CN116730703A CN116730703A CN202310733251.XA CN202310733251A CN116730703A CN 116730703 A CN116730703 A CN 116730703A CN 202310733251 A CN202310733251 A CN 202310733251A CN 116730703 A CN116730703 A CN 116730703A
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- concrete
- water
- waterproof
- anticorrosive
- resistance
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- 239000004567 concrete Substances 0.000 title claims abstract description 93
- 239000000463 material Substances 0.000 title claims abstract description 62
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 52
- 239000002904 solvent Substances 0.000 title claims abstract description 15
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 claims abstract description 48
- 239000004115 Sodium Silicate Substances 0.000 claims abstract description 23
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims abstract description 23
- 229910052911 sodium silicate Inorganic materials 0.000 claims abstract description 23
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000011777 magnesium Substances 0.000 claims abstract description 17
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 17
- 239000002270 dispersing agent Substances 0.000 claims abstract description 15
- 238000006243 chemical reaction Methods 0.000 claims abstract description 14
- 229920001296 polysiloxane Polymers 0.000 claims abstract description 14
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910000077 silane Inorganic materials 0.000 claims abstract description 13
- 238000002425 crystallisation Methods 0.000 claims abstract description 12
- 230000008025 crystallization Effects 0.000 claims abstract description 12
- 230000000694 effects Effects 0.000 claims abstract description 12
- 239000004094 surface-active agent Substances 0.000 claims abstract description 12
- 239000013078 crystal Substances 0.000 claims abstract description 10
- 229910021487 silica fume Inorganic materials 0.000 claims abstract description 10
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910001424 calcium ion Inorganic materials 0.000 claims abstract description 7
- 239000002738 chelating agent Substances 0.000 claims abstract description 5
- 239000003223 protective agent Substances 0.000 claims abstract description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 15
- 239000000758 substrate Substances 0.000 claims description 13
- 230000000149 penetrating effect Effects 0.000 claims description 12
- 239000000243 solution Substances 0.000 claims description 12
- 238000003756 stirring Methods 0.000 claims description 11
- 230000000844 anti-bacterial effect Effects 0.000 claims description 8
- 230000002421 anti-septic effect Effects 0.000 claims description 8
- 239000003899 bactericide agent Substances 0.000 claims description 8
- 239000011259 mixed solution Substances 0.000 claims description 8
- 239000002518 antifoaming agent Substances 0.000 claims description 6
- 238000005336 cracking Methods 0.000 claims description 6
- 238000009736 wetting Methods 0.000 claims description 6
- 238000007710 freezing Methods 0.000 claims description 5
- 230000008014 freezing Effects 0.000 claims description 5
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 4
- 230000032683 aging Effects 0.000 claims description 4
- 230000002528 anti-freeze Effects 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical group [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 claims description 4
- 238000011049 filling Methods 0.000 claims description 4
- 230000035699 permeability Effects 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 claims description 4
- 239000012257 stirred material Substances 0.000 claims description 4
- 238000004381 surface treatment Methods 0.000 claims description 4
- ALVYUZIFSCKIFP-UHFFFAOYSA-N triethoxy(2-methylpropyl)silane Chemical compound CCO[Si](CC(C)C)(OCC)OCC ALVYUZIFSCKIFP-UHFFFAOYSA-N 0.000 claims description 4
- 238000009924 canning Methods 0.000 claims description 3
- 239000008367 deionised water Substances 0.000 claims description 3
- 229910021641 deionized water Inorganic materials 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 230000002401 inhibitory effect Effects 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 230000003204 osmotic effect Effects 0.000 claims description 3
- 230000001737 promoting effect Effects 0.000 claims description 3
- 230000002829 reductive effect Effects 0.000 claims description 3
- DAJSVUQLFFJUSX-UHFFFAOYSA-M sodium;dodecane-1-sulfonate Chemical group [Na+].CCCCCCCCCCCCS([O-])(=O)=O DAJSVUQLFFJUSX-UHFFFAOYSA-M 0.000 claims description 3
- 239000013530 defoamer Substances 0.000 claims description 2
- 239000003125 aqueous solvent Substances 0.000 claims 8
- 238000005260 corrosion Methods 0.000 abstract description 12
- 230000002035 prolonged effect Effects 0.000 abstract description 8
- 230000007797 corrosion Effects 0.000 abstract description 7
- 230000002209 hydrophobic effect Effects 0.000 abstract description 6
- 239000000378 calcium silicate Substances 0.000 abstract description 3
- 229910052918 calcium silicate Inorganic materials 0.000 abstract description 3
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 abstract description 3
- 230000003197 catalytic effect Effects 0.000 abstract description 3
- 238000009792 diffusion process Methods 0.000 abstract description 3
- 239000012466 permeate Substances 0.000 abstract description 3
- 239000011148 porous material Substances 0.000 abstract description 3
- 239000011241 protective layer Substances 0.000 abstract description 3
- -1 silicate ions Chemical class 0.000 abstract description 3
- 239000002352 surface water Substances 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 7
- 239000003513 alkali Substances 0.000 description 5
- 239000004568 cement Substances 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 238000004078 waterproofing Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000003916 acid precipitation Methods 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000007888 film coating Substances 0.000 description 2
- 238000009501 film coating Methods 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 238000010257 thawing Methods 0.000 description 2
- XTIIITNXEHRMQL-UHFFFAOYSA-N tripotassium methoxy(trioxido)silane Chemical compound [K+].[K+].[K+].CO[Si]([O-])([O-])[O-] XTIIITNXEHRMQL-UHFFFAOYSA-N 0.000 description 2
- 239000004111 Potassium silicate Substances 0.000 description 1
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 230000000536 complexating effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004299 exfoliation Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- NNHHDJVEYQHLHG-UHFFFAOYSA-N potassium silicate Chemical compound [K+].[K+].[O-][Si]([O-])=O NNHHDJVEYQHLHG-UHFFFAOYSA-N 0.000 description 1
- 229910052913 potassium silicate Inorganic materials 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000012798 spherical particle Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
Classifications
-
- 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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/24—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing alkyl, ammonium or metal silicates; containing silica sols
- C04B28/26—Silicates of the alkali metals
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00482—Coating or impregnation materials
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/27—Water resistance, i.e. waterproof or water-repellent materials
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Aftertreatments Of Artificial And Natural Stones (AREA)
Abstract
The invention belongs to the technical field of waterproof and anticorrosive materials, and provides a concrete water-based solvent type permeable crystallization waterproof and anticorrosive material, which comprises the following components in parts by weight: 8-12% of silicone, 20-30% of sodium silicate, 8-15% of silane, 2-4% of silica fume, 4-7% of magnesium fluosilicate, 2-4% of surfactant, 1-2% of propylene glycol, 0.1-0.5% of chelating and dispersing agent and 2-6% of protective agent; the material provided by the invention can quickly permeate into the concrete to form a hydrophobic net-shaped protective layer, so that the compressive strength of the concrete is increased, the corrosion resistance of the concrete is increased, the service life of the concrete is prolonged, silicate ions in the material are chemically reacted with calcium ions in the concrete along with the diffusion of surface water in the concrete to generate water-insoluble calcium silicate hydrate, the crystals are filled in concrete pores and are combined with the concrete to form a whole, the material has catalytic properties, once the material is subjected to the chemical reaction continuously, crystals are generated, and the waterproof effect of the material can be theoretically the same as the service life of a building.
Description
Technical Field
The invention belongs to the technical field of waterproof and anticorrosive materials, and particularly relates to a water-based solvent type permeable crystallization waterproof and anticorrosive material for concrete.
Background
The concrete refers to a general term of engineering composite materials which are formed by cementing aggregates into a whole by cementing materials, the term of concrete refers to cement which is used as cementing materials, sand and stone which are used as aggregates and water (which can contain additives and admixtures) are matched according to a certain proportion, and the cement concrete obtained by stirring is also called ordinary concrete, and is widely applied to civil engineering;
the existing building is a main body of a concrete structure, the concrete is easily influenced by multiple factors such as aggregate particle size, aggregate self activity, strength, impurities and additives in different areas, including stirring machinery, transportation time and the like, in the construction process, the existing building is also influenced by vibration time, parts and the like, structural compactness is caused, later environmental temperature control differences are likely to cause cracks, finally, soil property differences in all areas can influence the service life of the main body of the later structure, at present, sodium silicate and other potassium methyl silicate waterproofing agents have certain defects, firstly, the main body is sodium silicate potassium silicate permeable waterproofing agents have crack resistance to the concrete, the surface protection effect is lower, secondly, the surface hydrophobic potassium methyl silicate has short service life and is easy to volatilize, other waterproof protection layers are mostly film coating products, the film coating products are easily influenced by construction factors, constructors have uneven technical level, the thickness of a coating, the constructors can directly influence the structural waterproofing and the service life of the base layer.
Therefore, a concrete water-based solvent-type penetrating crystallization waterproof and anticorrosive material is proposed by the person skilled in the art to solve the problems proposed by the background art.
Disclosure of Invention
In order to solve the technical problems, the invention provides a water-based solvent type permeable crystalline waterproof and anticorrosive material for concrete, which solves the problems in the prior art.
The water-based solvent type permeable crystallization waterproof and anticorrosive material for the concrete comprises the following components in parts by weight: 8-12% of silicone, 20-30% of sodium silicate, 8-15% of silane, 2-4% of silica fume, 4-7% of magnesium fluosilicate, 2-4% of surfactant, 1-2% of propylene glycol, 0.1-0.5% of chelating and dispersing agent, 2-6% of protective agent, 0.5-0.8% of defoaming agent, 0.02-0.05% of early strength agent, 0.3-0.8% of antiseptic bactericide and the balance of water, wherein the protective agent is wetting dispersing agent;
the preparation method of the water-based solvent type osmotic crystallization waterproof and anticorrosive material for concrete comprises the following steps:
s1, adding water into a reaction kettle;
s2, sequentially adding a defoaming agent, an antiseptic bactericide, an early strength agent, 2% -4% of a surfactant, and stirring to prepare a mixed solution by chelating each dispersing agent, silica fume, propylene glycol, a wetting dispersing agent, magnesium fluosilicate, silicone and silane;
s3, adding sodium silicate into the mixed solution, and fully mixing and stirring in a reaction kettle;
s4, filtering and canning the stirred material.
Preferably, the silicone is siloxane, and the silicone has the advantages of excellent water resistance, moisture resistance, seepage resistance, ageing resistance, pollution resistance and the like, and prevents moisture from penetrating into a substrate, so that exfoliation caused by freeze thawing and weathering is reduced, the service life of the substrate is prolonged, and meanwhile, a layer of insoluble waterproof high polymer compound with a thickness of a few molecules can be formed on the surface and the inside of a structure by the material.
Preferably, the sodium silicate is a sodium silicate solution with the mass fraction of 40-45, and the sodium silicate solution has the function of being capable of generating chemical reaction with free calcium ions in the concrete to generate insoluble crystals and filling cracks and gaps in the concrete, so that the compactness and the waterproofness of the concrete are improved.
Preferably, the silane is 90% isobutyl triethoxysilane, which has a small molecular structure and can penetrate through the cementitious surface, penetrate into the interior of the concrete to chemically react with air exposed in the acid-alkali environment and water molecules of the substrate to form a permanent firm high-environmental protection waterproof layer, so that corrosion, loosening, stripping and mildewing of the concrete and the internal steel bar structure caused by corrosion of the substrate due to water seepage, sunlight, acid rain and acid-alkali environment can be effectively prevented, and the service life of the concrete is prolonged.
Preferably, the magnesium fluosilicate is magnesium fluosilicate solution, has the function of inhibiting concrete from being cracked, has a certain cracking resistance, and can be used as an antifreeze for concrete surface treatment.
The surfactant is sodium dodecyl sulfonate, and has the main effects of reducing the surface tension of an interface and promoting the permeation of materials.
Preferably, the propylene glycol is industrial-grade propylene glycol, so that the permeability and freezing resistance of the material can be effectively improved.
Preferably, the early strength agent is triethanolamine, so that the early concrete strength and the impermeability can be improved.
Preferably, the water is deionized water, and the resistivity of the ionized water is more than or equal to 10MΩ. cm.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention provides a permeable crystallization type concrete solvent waterproof material capable of efficiently protecting a concrete surface layer, which comprises the following steps that firstly, the material has a very small molecular structure, can rapidly permeate into the concrete, a protective network is formed in the permeated range, a first hydrophobic net-shaped protective layer is formed, the compressive strength of the concrete can be effectively increased, the corrosion resistance of the concrete is increased, the service life of the concrete is effectively prolonged, and secondly, silicate ions in the material react with calcium ions in the concrete along with the diffusion of surface water in the concrete to generate water-insoluble calcium silicate hydrate, crystals are filled in concrete pores and are combined with the concrete to form a whole, so that the material has catalytic characteristics, once meeting water, chemical reaction can be continuously generated, and the waterproof effect of the material can be theoretically the same as the service life of a building.
Drawings
FIG. 1 is a flow chart of the material fabrication of the present invention;
FIG. 2 is a diagram of the inspection standard of the present invention;
FIG. 3 is a graph showing the detection results of the present invention.
Detailed Description
Embodiments of the present invention are described in further detail below with reference to the accompanying drawings and examples. The following examples are illustrative of the invention but are not intended to limit the scope of the invention.
As shown in fig. 1:
embodiment one: the invention provides a concrete water-based solvent type penetrating crystallization waterproof and anticorrosive material, which comprises the following components in parts by weight: 8-12% of silicone, 20-30% of sodium silicate, 8-15% of silane, 2-4% of silica fume, 4-7% of magnesium fluosilicate, 2-4% of surfactant, 1-2% of propylene glycol, 0.1-0.5% of chelating and dispersing agent, 2-6% of protective agent, 0.5-0.8% of defoamer, 0.02-0.05% of early strength agent, 0.3-0.8% of antiseptic and bactericide, and the balance of water;
the preparation method of the water-based solvent type osmotic crystallization waterproof and anticorrosive material for concrete comprises the following steps:
s1, adding water into a reaction kettle;
s2, sequentially adding a defoaming agent, an antiseptic bactericide, an early strength agent, 2% -4% of a surfactant, and stirring to prepare a mixed solution by chelating each dispersing agent, silica fume, propylene glycol, a wetting dispersing agent, magnesium fluosilicate, silicone and silane;
s3, adding sodium silicate into the mixed solution, and fully mixing and stirring in a reaction kettle;
s4, filtering and canning the stirred material.
Furthermore, the silicone is siloxane, and has the advantages of excellent water resistance, moisture resistance, seepage resistance, ageing resistance, pollution resistance and the like, and moisture penetration into a substrate is avoided.
Further, the sodium silicate is a sodium silicate solution with the mass fraction of 40-45, and the sodium silicate solution is used for generating chemical reaction with free calcium ions in the concrete to generate insoluble crystals so as to fill cracks and gaps in the concrete.
Furthermore, the silane is 90% isobutyl triethoxysilane, has a small molecular structure and can penetrate through the cementitious surface, penetrate into the concrete, and chemically react with air exposed in the acid-base environment and water molecules of the substrate to form a permanent, firm and high-environmental-protection waterproof layer.
Furthermore, the magnesium fluosilicate is magnesium fluosilicate solution, has the function of inhibiting concrete from being cracked, has a certain anti-cracking function, and can be used as an antifreeze for concrete surface treatment.
Furthermore, the propylene glycol is industrial-grade propylene glycol, so that the permeability and freezing resistance of the material can be effectively improved.
Furthermore, the early strength agent adopts triethanolamine, so that the early concrete strength and the impermeability can be improved.
Further, the water is deionized water, and the resistivity of the ionized water is more than or equal to 10MΩ. cm.
From the above, when the anticorrosive material is prepared, water is firstly added into a reaction kettle, the weight portion of the water is 19.35%, then defoaming agent 0.5%, antiseptic bactericide 0.3%, early strength agent 0.02%, surfactant 2%, chelating dispersing agents 0.1%, silica fume 2%, propylene glycol 1%, wetting dispersing agent 2%, magnesium fluosilicate 4%, silicone 20% and silane 8% are added into the water, and stirring is carried out to prepare a mixed solution, wherein the defoaming agent is used for eliminating foam in the stirring process of the material, the antiseptic bactericide has the effect of ensuring the storage life of the material, and the early strength and the impermeability can be effectively improved by adopting triethanolamine as the early strength agent.
Furthermore, the surfactant can obviously reduce the water absorption capacity of the substrate, has certain hydrophobic, hydrophobic and waterproof properties, can enable the surface of the coating to be smoother, reduces the water absorption and cracking properties of the coating, and the chelating and dispersing agent has adsorption complexing effect on metal ions, so that the water quality can be obviously softened in the material.
Furthermore, silica fume contains a large amount of amorphous spherical particles SiO2, the particles are extremely fine and have high activity, and the reinforcing effect is shown in the following way when the silica fume is doped into cement concrete: evenly distributed in the hydration product, has good micro-filling effect, and compacts the concrete; the method is particularly beneficial to the early and middle strength development of the concrete, reduces free Ca (OH) 2 in the concrete, reduces the size of original flaky crystals, improves the dispersity in the concrete and obviously improves the interface structure in the concrete. These characteristics result in a significant increase in the strength and durability of the concrete.
Further the surfactant is sodium dodecyl sulfonate, and the main function is to reduce the surface tension of the interface. Promoting material penetration. Can also play a certain role in dispersing to prevent the agglomeration of sodium silicate colloid particles.
Furthermore, the propylene glycol is industrial propylene glycol, so that the permeability and freezing resistance of the material can be effectively improved, the wetting dispersant mainly acts to reduce the surface tension of an interface and promote the material permeation, in addition, in the preparation process, the material can also have a good dispersing effect to prevent material molecules from agglomerating, and the magnesium fluosilicate adopts magnesium fluosilicate solution, so that the magnesium fluosilicate solution acts to inhibit concrete from cracking, plays a certain anti-cracking role and can be used as an antifreeze for concrete surface treatment.
Furthermore, the silicone is siloxane, and the silicone has the advantages of excellent water resistance, moisture resistance, seepage resistance, ageing resistance, pollution resistance and the like, and prevents moisture from penetrating the substrate, so that the peeling caused by freeze thawing and weathering is reduced, the service life of the substrate is prolonged, and the material can be used for generating a layer of insoluble waterproof high polymer compound with a thickness of a few molecules on the surface and in the structure.
Furthermore, the silane is 90% isobutyl triethoxysilane, has a small molecular structure and can penetrate through the cementitious surface, and the silane is permeated into the concrete to chemically react with air exposed in the acid-alkali environment and water molecules of the substrate to form a permanent firm high-environment-friendly waterproof layer, so that corrosion, loosening, stripping and mildew of the concrete and the internal reinforcing steel structure caused by corrosion of the substrate due to water seepage, sunlight, acid rain and acid-alkali environment can be effectively prevented, and the service life of the concrete is prolonged.
Further, adding sodium silicate into the mixed solution, and stirring again in a reaction kettle, wherein the sodium silicate is 40-45 mass percent sodium silicate solution, and the sodium silicate is used for generating chemical reaction with free calcium ions in the concrete to generate insoluble crystals and filling cracks and gaps in the concrete, so that the compactness and the water resistance of the concrete are improved.
Further, the stirred material was filtered and canned.
Through the operation, the invention provides the permeable crystallization type concrete solvent waterproof material capable of efficiently protecting the concrete surface layer, firstly, the material has a small molecular structure, can rapidly permeate into the concrete, a protective network is formed in the permeated range, a first hydrophobic net-shaped protective layer is formed, the compressive strength of the concrete can be effectively increased, the corrosion resistance of the concrete is increased, the service life of the concrete is effectively prolonged, silicate ions in the material react with calcium ions in the concrete along with the diffusion of surface water in the concrete, calcium silicate hydrate which is insoluble in water is generated, crystals are filled in concrete pores and are combined with the concrete to form a whole, the material has catalytic characteristics, once the crystals are generated continuously, and the waterproof effect of the material can be theoretically the same as the service life of a building.
Embodiment two: the embodiment is different from the first embodiment, the water-based solvent-based penetrating crystalline waterproof and anti-corrosion material prepared by the invention is sprayed in a concrete test block with the thickness of 100 multiplied by 150 multiplied by 100mm, and the main performances of the water-based solvent-based penetrating crystalline waterproof and anti-corrosion material are tested according to JC/T474-2008 (mortar concrete waterproof agent) and JC/T1018-2020 (water-based inorganic waterproof agent) and GB 1845-2012 (cement-based penetrating crystalline waterproof material), as shown in fig. 2 and 3, the freezing resistance, alkali resistance, heat resistance and compressive strength of the water-based penetrating crystalline waterproof and anti-corrosion material prepared by the invention are improved, the service life of the water-based penetrating crystalline waterproof and anti-corrosion material is prolonged, the material penetrating height can reach 33mm, and the waterproof and anti-corrosion effect is obvious.
While embodiments of the present invention have been shown and described above for purposes of illustration and description, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives, and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.
Claims (9)
1. A concrete water-based solvent type penetrating crystallization waterproof and anticorrosive material is characterized in that: the coating comprises the following components in parts by weight: 8-12% of silicone, 20-30% of sodium silicate, 8-15% of silane, 2-4% of silica fume, 4-7% of magnesium fluosilicate, 2-4% of surfactant, 1-2% of propylene glycol, 0.1-0.5% of chelating and dispersing agent, 2-6% of protective agent, 0.5-0.8% of defoamer, 0.02-0.05% of early strength agent, 0.3-0.8% of antiseptic and bactericide, and the balance of water;
the preparation method of the water-based solvent type osmotic crystallization waterproof and anticorrosive material for concrete comprises the following steps:
s1, adding water into a reaction kettle;
s2, sequentially adding a defoaming agent, an antiseptic bactericide, an early strength agent, 2% -4% of a surfactant, and stirring to prepare a mixed solution by chelating each dispersing agent, silica fume, propylene glycol, a wetting dispersing agent, magnesium fluosilicate, silicone and silane;
s3, adding sodium silicate into the mixed solution, and fully mixing and stirring in a reaction kettle;
s4, filtering and canning the stirred material.
2. The aqueous solvent-based permeable crystalline waterproof and anticorrosive concrete material according to claim 1, wherein: the silicone is siloxane, and has the advantages of excellent water resistance, moisture resistance, seepage resistance, ageing resistance, pollution resistance and the like, and moisture permeation into a substrate is reduced as much as possible.
3. The aqueous solvent-based permeable crystalline waterproof and anticorrosive concrete material according to claim 1, wherein: the sodium silicate is a sodium silicate solution with the mass fraction of 40-45, and the sodium silicate solution is used for generating chemical reaction with free calcium ions in concrete to generate insoluble crystals and filling cracks and gaps in the concrete.
4. The aqueous solvent-based permeable crystalline waterproof and anticorrosive concrete material according to claim 1, wherein: the silane is 90% isobutyl triethoxysilane, has a small molecular structure and can penetrate through the cementitious surface, penetrate into the concrete, and chemically react with air exposed in the acid-base environment and water molecules of the substrate to form a permanent firm high-environmental protection waterproof layer.
5. The aqueous solvent-based permeable crystalline waterproof and anticorrosive concrete material according to claim 1, wherein: the magnesium fluosilicate is magnesium fluosilicate solution, has the function of inhibiting concrete from being cracked, has a certain anti-cracking function, and can be used as an antifreeze for concrete surface treatment.
6. A concrete aqueous solvent type penetrating crystallization waterproof and anticorrosive material according to claim 1, wherein: the surfactant is sodium dodecyl sulfonate, and has the main effects of reducing the surface tension of an interface and promoting the permeation of materials.
7. The aqueous solvent-based permeable crystalline waterproof and anticorrosive concrete material according to claim 1, wherein: the propylene glycol is industrial-grade propylene glycol, and can effectively increase the permeability and freezing resistance of the material.
8. The aqueous solvent-based permeable crystalline waterproof and anticorrosive concrete material according to claim 1, wherein: the early strength agent adopts triethanolamine, and can improve the strength and impermeability of early concrete.
9. The aqueous solvent-based permeable crystalline waterproof and anticorrosive concrete material according to claim 1, wherein: the water is deionized water, and the resistivity of the ionized water is more than or equal to 10MΩ & cm.
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| CN202310733251.XA CN116730703A (en) | 2023-06-20 | 2023-06-20 | Water-based solvent type permeable crystalline waterproof and anticorrosive material for concrete |
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| CN202310733251.XA CN116730703A (en) | 2023-06-20 | 2023-06-20 | Water-based solvent type permeable crystalline waterproof and anticorrosive material for concrete |
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