CN114920496B - Waterproof material and preparation method and application thereof - Google Patents
Waterproof material and preparation method and application thereof Download PDFInfo
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- CN114920496B CN114920496B CN202210790850.0A CN202210790850A CN114920496B CN 114920496 B CN114920496 B CN 114920496B CN 202210790850 A CN202210790850 A CN 202210790850A CN 114920496 B CN114920496 B CN 114920496B
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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
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
- C04B26/04—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
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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
- 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
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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
- 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
- C04B2111/23—Acid resistance, e.g. against acid air or rain
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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
- 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
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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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/10—Mortars, concrete or artificial stone characterised by specific physical values for the viscosity
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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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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Abstract
The invention provides a waterproof material and a preparation method and application thereof, belonging to the technical field of waterproofing. The waterproof material provided by the invention comprises a component A and a component B, wherein the component A comprises the following components in parts by mass: 5 to 30 parts of water-soluble synthetic resin, 100 to 200 parts of mineral filler, 1 to 3 parts of inorganic reinforcing agent, 0.5 to 5 parts of catalyst, 0.11 to 2 parts of auxiliary agent and 85 to 250 parts of first diluent; the component B comprises: 0.01 to 15 portions of cross-linking agent and 2 to 5 portions of second diluent. The waterproof material provided by the invention has good fluidity, strong permeability, good flexibility after curing and forming, high strength, shape adaptability characteristic, and outstanding advantages of ageing resistance, corrosion resistance, cracking resistance and the like.
Description
Technical Field
The invention relates to the technical field of water prevention, in particular to a waterproof material and a preparation method and application thereof.
Background
In the engineering construction fields of roads, tunnels, buildings and the like, the problems of water prevention and water blockage are always a difficult problem. The long-term leakage directly or indirectly destroys the overall structure of the engineering, affects the service life, and even affects the safety of people in severe cases, so the construction of a waterproof system in the engineering is very important. At present, waterproof materials on the market are various, such as: polymer mortar, portland cement, composite portland cement, polyurethane waterproof material, waterproof coiled material and the like.
However, the existing waterproof materials still have certain limitations, for example, polymer mortar, portland cement and composite portland cement which take inorganic materials as main bodies have large volume shrinkage in the drying process, and tiny cracks are easy to appear after curing, so that the problems of water seepage and water leakage are difficult to solve; in addition, the material is a strong alkaline system, which has adverse effect on the environment; and because the corrosion resistance and the water resistance are poor, the material undergoes physical and chemical changes in the environment, so that gaps are enlarged, and cracks and looseness are caused, and the protection failure is caused. The application occasions of the waterproof coiled material modified by the high polymer asphalt have obvious limitations, and the problem of water leakage caused by the fact that lap seams easily form weak points exists. Particularly, the existing waterproof material generally has the characteristics of large viscosity and poor fluidity, and the problem of repairing microcracks and internal cracks is difficult to solve.
Disclosure of Invention
The waterproof material provided by the invention has good fluidity, strong permeability, good flexibility after curing and forming, high strength, shape adaptability, and outstanding advantages of ageing resistance, corrosion resistance, cracking resistance and the like.
In order to achieve the above object, the present invention provides the following technical solutions:
the invention provides a waterproof material, which comprises a component A and a component B, wherein the components A and B are counted by mass part,
the component A comprises: 5 to 30 parts of water-soluble synthetic resin, 100 to 200 parts of mineral filler, 1 to 3 parts of inorganic reinforcing agent, 0.5 to 5 parts of catalyst, 0.11 to 2 parts of auxiliary agent and 85 to 250 parts of first diluent;
the component B comprises: 0.01 to 15 portions of cross-linking agent and 2 to 5 portions of second diluent.
Preferably, the molecular weight of the water-soluble synthetic resin is 10 to 40 ten thousand, and the water-soluble synthetic resin comprises one or more of hydroxyl acrylic emulsion, hydroxyl styrene-acrylic emulsion and polyvinyl alcohol.
Preferably, the mineral filler comprises one or more of calcium carbonate, calcium oxide, alumina, calcium sulfate, mica powder and kaolin; the mesh number of the mineral filler is 800-4000 meshes.
Preferably, the inorganic reinforcing agent includes one or more of glass powder, sodium dihydrogen phosphate and aluminum dihydrogen phosphate;
the auxiliary agent comprises a wetting dispersant and a defoaming agent.
Preferably, the catalyst comprises one of sulfuric acid solution, phosphoric acid solution, acetic acid solution, hydrochloric acid solution, sodium hydroxide and calcium hydroxide.
Preferably, the first diluent and the second diluent independently comprise one or more of water, ethanol and ethyl acetate.
Preferably, the cross-linking agent comprises one or more of sodium trimetaphosphate, sodium tripolyphosphate, formaldehyde, glutaraldehyde, epichlorohydrin and phosphorus oxychloride.
Preferably, the method comprises the following steps: mixing water-soluble synthetic resin, mineral filler, inorganic reinforcing agent, catalyst, auxiliary agent and first diluent to obtain a component A of the waterproof material;
and mixing the cross-linking agent and the second diluent to obtain the component B of the waterproof material.
The invention provides application of the waterproof material in the scheme or the waterproof material prepared by the preparation method in the scheme in the waterproof field.
Preferably, the method for applying comprises the following steps: mixing the A component and the B component to obtain a mixture, and applying the mixture to the part to be waterproofed.
The invention provides a waterproof material which comprises a component A and a component B, wherein the component A comprises the following components in parts by mass: 5 to 30 parts of water-soluble synthetic resin, 100 to 200 parts of mineral filler, 1 to 3 parts of inorganic reinforcing agent, 0.5 to 5 parts of catalyst, 0.11 to 2 parts of auxiliary agent and 85 to 250 parts of first diluent; the component B comprises: 0.01 to 15 portions of cross-linking agent and 2 to 5 portions of second diluent. The waterproof material is a water-based organic-inorganic composite material, and the requirements on permeability and strength in application are balanced by adopting an in-situ curing method. Before curing, the adhesive has low viscosity, strong fluidity and good permeability, and can be cured into a solid form after reaching a filling part, thereby establishing considerable strength and playing a role in preventing water and stopping leakage. The waterproof material of the invention contains hydrophilic organic polymer, so the waterproof material has the characteristics of good flexibility and crack resistance, can expand when absorbing water, and shows the shape adaptability to cracks. The system can achieve controllable adjustment of properties such as curing time, permeability, strength and the like by adjusting the proportion of the components according to specific application requirements.
The waterproof material of the invention achieves the waterproof aim by forming the cross-linked network composite material in situ at the repaired part by the component A and the component B. The construction can be carried out by adopting the construction modes of grouting, brushing, rolling and the like. The waterproof paint is widely applied to waterproofing of tunnels, bridges and the like in highway engineering construction, and can also be used for construction and repair of waterproofing projects such as basements and roofs of buildings.
The waterproof material disclosed by the invention is low in viscosity, easy to flow, suitable for a grouting process and capable of penetrating into deep fine cracks. After the waterproof material reaches the protection and repair part, the waterproof material is cured in situ and is in extension type crosslinking to form the solid network-shaped high molecular polymer-inorganic mineral composite waterproof material. And meanwhile, the adhesive permeates into surrounding base materials to form effective adhesion, and the outstanding anti-cracking performance is established. Therefore, the material has outstanding protection and repair effects on water seepage problems which are difficult to repair by traditional materials, such as water seepage due to microcracks.
The cross-linked network structure composite material formed by the waterproof material is a high-flexibility waterproof material, has the characteristic of water absorption expansion, and has outstanding advantages in the aspects of shrinkage resistance, cracking resistance and the like because the composite material has good deformation capacity and shows outstanding formation adaptability.
In actual application, the viscosity, the crosslinking speed and the material strength can be adjusted according to requirements by diluting the component A and adjusting the ratio of the component A to the component B, so that a waterproof material system with good applicability is obtained.
Furthermore, the diluent is one or more of water, ethanol and ethyl acetate, and is safe and environment-friendly.
Drawings
FIG. 1 is a schematic view of a process for preparing and curing a waterproof material;
FIG. 2 shows the penetration and solidification effects of the waterproof material in the sandy soil substrate;
FIG. 3 is a diagram showing the bonding effect of the waterproof material and the rock block;
fig. 4 is a diagram illustrating the effect of the waterproof material in a tunnel waterproofing application.
Detailed Description
The invention provides a waterproof material, which comprises a component A and a component B, wherein the components A and B are counted by mass part,
the component A comprises: 5 to 30 parts of water-soluble synthetic resin, 100 to 200 parts of mineral filler, 1 to 3 parts of inorganic reinforcing agent, 0.5 to 5 parts of catalyst, 0.11 to 2 parts of auxiliary agent and 85 to 250 parts of first diluent;
the component B comprises: 0.01 to 15 portions of cross-linking agent and 20 to 50 portions of second diluent.
In the present invention, the starting materials used are all commercially available products well known in the art, unless otherwise specified.
The component A will be explained below.
The component A comprises 5-30 parts by mass of water-soluble synthetic resin, preferably 10-25 parts by mass of water-soluble synthetic resin, and more preferably 15-20 parts by mass of water-soluble synthetic resin. In the present invention, the molecular weight of the water-soluble synthetic resin is preferably 10 to 40 ten thousand, more preferably 15 to 35 ten thousand, and still more preferably 20 to 30 ten thousand. In the present invention, the water-soluble synthetic resin preferably includes one or more of a hydroxyacrylic emulsion, a hydroxybenzyl emulsion, and polyvinyl alcohol. In the present invention, the polyvinyl alcohol may specifically be PVA105, PVA117, PVA124, PVA205, PVA217, PVA224, PVA2488, PVA0588, PVA0388, PVA17-99, PVA17-88, PVA17-78, PVA05-88, PVA05-78. In the present invention, the water-soluble synthetic resin functions as an organic binder phase, providing good flexibility and crack resistance. After crosslinking and curing, objective strength is formed.
The component A comprises 100 to 200 parts of mineral filler, preferably 120 to 180 parts of mineral filler, and more preferably 140 to 160 parts of mineral filler based on the mass parts of the water-soluble synthetic resin. In the present invention, the mineral filler preferably includes one or more of calcium carbonate, calcium oxide, alumina, calcium sulfate, mica powder and kaolin; when the mineral filler comprises a plurality of the above substances, the invention has no special requirements on the types of the mineral fillers and can be prepared in any proportion. In the present invention, the mesh number of the mineral filler is preferably 800 to 4000 meshes, more preferably 1000 to 3000 meshes, and further preferably 1500 to 2500 meshes. In the invention, the mineral filler plays roles of reinforcing, toughening, structural support and filling.
The component A comprises 1 to 3 parts of inorganic reinforcing agent, preferably 1.5 to 2.5 parts, and more preferably 1.8 to 2.2 parts by mass of the water-soluble synthetic resin. In the present invention, the inorganic reinforcing agent preferably includes one or more of glass powder, sodium dihydrogen phosphate and aluminum dihydrogen phosphate, and when the inorganic reinforcing agent includes a plurality of the above substances, the ratio of each inorganic reinforcing agent in the present invention is not particularly limited, and any ratio may be used. In the present invention, the inorganic reinforcing agent functions to reinforce the mechanical strength of the material itself and to the substrate.
The component A comprises 0.5-5 parts of catalyst, preferably 1-4 parts of catalyst, and more preferably 2-3 parts of catalyst based on the mass parts of the water-soluble synthetic resin. In the present invention, the catalyst preferably includes one of sulfuric acid solution, phosphoric acid solution, acetic acid solution, hydrochloric acid solution, sodium hydroxide, and calcium hydroxide. In the invention, the mass concentration of the sulfuric acid solution is preferably 10-20%; the mass concentration of the phosphoric acid solution is preferably 25-30%; the mass concentration of the acetic acid solution is preferably 30-50%; the mass concentration of the hydrochloric acid solution is preferably 10 to 20%. The sodium hydroxide and calcium hydroxide are preferably used in the form of aqueous solutions, and the parts by mass of the catalyst refer to the mass of the pure solute.
The component A comprises 0.11 to 2 parts of auxiliary agent, preferably 0.5 to 1.8 parts, and more preferably 0.8 to 1.5 parts by mass of the water-soluble synthetic resin. In the invention, the auxiliary agent preferably comprises a wetting dispersant and an antifoaming agent, and the mass ratio of the wetting dispersant to the antifoaming agent is preferably 1. The invention has no special requirements on the types of the wetting dispersant and the defoaming agent, and the wetting dispersant and the defoaming agent which are well known in the field can be used. Specifically, the wetting dispersant may be one or more of TEGO Dispers 655, TEGO Dispers 735W, TEGO Dispers 740W, TEGO Dispers 750W, TEGO Dispers 755W, TEGO Dispers 760W, zetaSperse 2500, zetaSperse 3100, zetaSperse 3400, zetaSperse 3600, disper BYK-180, disper BYK-190, disper BK-191, disper BK-23160, disper BYK-2010, triton CF-10, triton X-405, triton OT-75, triton X-100, OROTAN 731A, SN 5040 and Additol VXVXW 6208/60; the antifoaming agent may be one or more of BYK-019, BYK-023, BYK-024, BYK-034, BYK 1780, TEGO FOAMEX 810, tego Foamex 825, TEGO FOAMEX 920, TEGO FOAMEX 1488, TEGOAirex 904W, foamStar 2410AC, FOAMSTAR SI 2250, and Foamaster 328.
The component A comprises 85 to 250 parts of first diluent, preferably 100 to 220 parts, and more preferably 120 to 200 parts by mass of the water-soluble synthetic resin. The amount of the first diluent can be further optimized by one skilled in the art within the above range according to viscosity requirements. In the present invention, the first diluent is preferably one or more of water, ethanol and ethyl acetate, and more preferably water.
The following is a description of the B component.
The component B comprises 0.01 to 15 parts of cross-linking agent, preferably 0.1 to 14 parts, and more preferably 1 to 10 parts by mass. In the present invention, the crosslinking agent preferably includes one or more of sodium trimetaphosphate, sodium tripolyphosphate, formaldehyde, glutaraldehyde, epichlorohydrin, and phosphorus oxychloride. When the cross-linking agent comprises a plurality of the substances, the proportion of each cross-linking agent is not particularly required and can be any.
The component B comprises 2-5 parts of a second diluent, preferably 2.5-4.5 parts, and more preferably 3-4 parts by mass of the cross-linking agent. In the present invention, the second diluent is preferably one or more of water, ethanol and ethyl acetate, and more preferably water.
The invention provides a preparation method of the waterproof material, which comprises the following steps: mixing water-soluble synthetic resin, mineral filler, inorganic reinforcing agent, catalyst, auxiliary agent and first diluent to obtain a component A of the waterproof material;
and mixing the cross-linking agent and the second diluent to obtain the component B of the waterproof material.
The mixing of the water-soluble synthetic resin, the mineral filler, the inorganic reinforcing agent, the catalyst, the auxiliary agent and the first diluent preferably comprises: the water-soluble synthetic resin is mixed with the diluent, and then the mineral filler, the inorganic reinforcing agent, the catalyst and the auxiliary agent are added into the obtained mixed system.
The invention has no special requirement on the mixing process of the cross-linking agent and the second diluent, and the cross-linking agent and the second diluent can be uniformly mixed.
The following will explain the preparation method of the waterproof material of the present invention in detail with reference to fig. 1. As shown in figure 1, the invention firstly adds water-soluble synthetic resin into a first diluent, and then adds mineral filler, inorganic reinforcing agent, catalyst and auxiliary agent into the obtained mixed system to obtain component A; mixing a cross-linking agent and a second diluent to obtain a component B; after the component A and the component B are mixed, the water-soluble synthetic resin can generate cross-linking reaction under the action of a cross-linking agent.
The invention provides application of the waterproof material in the scheme or the waterproof material prepared by the preparation method in the scheme in the waterproof field.
In the present invention, the method of application preferably comprises: mixing the A component and the B component to obtain a mixture, and applying the mixture to the part to be waterproofed.
In the present invention, the application mode is preferably grouting, brushing or rolling, and the present invention is not particularly limited thereto, and can be determined by those skilled in the art according to actual requirements. The waterproof material is not specially limited for the part to be waterproofed, is widely applicable to waterproofing of tunnels, bridges and the like in highway engineering construction, and can also be used for construction and repair of waterproofing projects such as basements and roofs of buildings.
In the present invention, the mass ratio of the component a to the component B in the waterproof material is preferably 100: (0.001 to 0.1), more preferably 100: (0.01 to 0.09), more preferably 100: (0.03-0.07). The person skilled in the art can select a suitable mass ratio of the A component and the B component according to actual requirements, for example, when the crosslinking speed needs to be increased, the amount of the B component can be increased. When the viscosity is required to be low by one skilled in the art, it is preferred to appropriately dilute the A component before mixing the A component and the B component. The diluent for dilution is preferably water, ethanol or ethyl acetate.
In the invention, after the component A and the component B are mixed, the cross-linking agent and hydroxyl (-OH) in the water-soluble synthetic resin are chemically bonded to form a network structure, and the network structure is cured in situ and simultaneously permeates into surrounding base materials to form effective adhesion, thereby establishing the outstanding anti-cracking performance. Therefore, the material has outstanding protection and repair effects against water seepage problems which are difficult to repair by traditional materials, such as the formation of microcracks.
The waterproof material and the preparation method thereof provided by the present invention will be described in detail with reference to the following examples, but they should not be construed as limiting the scope of the present invention.
Example 1
Weighing 8.62g of polyvinyl alcohol with the molecular weight of 12-15 ten thousand and 130g of water, adding the polyvinyl alcohol and the water into a beaker, quickly and uniformly stirring, adding 110g of mica powder, uniformly dispersing the mica powder, then adding 2.2g of sodium dihydrogen phosphate, adding 0.1g of BYK-024 and 2.3g of 18% hydrochloric acid solution in parts by mass, and uniformly stirring to obtain a component A. 0.05g of sodium tripolyphosphate as a crosslinking agent was added to 5g of water to obtain component B.
Application example 1
The component B prepared in the example 1 is added into the component A, and the mixture is rapidly and uniformly stirred to obtain grouting liquid.
In order to obtain wide applicability under different construction environments with water leakage, water seepage and the like, the proportion is adjusted to obtain target performance. The following experiments were designed to establish the influence of material formulation on curing time, as shown in table 1.
Table 1 detection results of relationship between ratio and curing aging
For the mixture ratio 3, the physical and chemical performance indexes of the flexible waterproof material measured by referring to the standard of GB/T1.1-2009 are shown in the table 2, and the detection result of the content of harmful substances in the material is shown in the table 3.
TABLE 2 detection results of the properties of the waterproof materials
TABLE 3 detection results of harmful substance content in waterproof material
| Item | Limit of harmful substance |
| Volatile Organic Compound (VOC)/(g/L) | 80g/L |
| Free formaldehyde/mg/kg | 100mg/kg |
| Total of benzene, toluene, ethylbenzene and xylene/(g/kg) | 200g/kg |
| Ammonia/mg/kg | 450mg/kg |
As can be seen from tables 2 and 3, the waterproof material of example 1 has significant advantages in strength, elongation, acid resistance, alkali resistance and other properties, and the test result can meet the standard requirements, thus having great application prospects in the directions of safety, environmental protection, economy, practicality and the like.
Example 2
The water-proof material is obtained by using a mixed system of water-based hydroxyl acrylic emulsion and polyvinyl alcohol as an organic phase component, and the bonding condition of the material and the stone is tested:
weighing 8.0g of aqueous hydroxyl acrylic emulsion, 2.0g of polyvinyl alcohol and 100g of water in a laboratory, adding into a beaker, quickly stirring uniformly, adding 0.5g of dispersing agent OROTAN 731A and 120g of mica powder, and dispersing uniformly at a high speed. Then, 1.8g of inorganic reinforcing agent sodium dihydrogen phosphate is added, 0.1g of BYK-024 and 2.3g of hydrochloric acid solution with the mass concentration of 18% are added, and the mixture is stirred uniformly to obtain the component A. 0.1g of a crosslinking agent formaldehyde was added to 2.0g of water to obtain a B component.
Application example 2
Adding the prepared component B into the component A (the mass ratio of the component B to the component A is 1: 1000), quickly stirring uniformly to obtain grouting liquid, then bonding the grouting liquid with the stone, and after curing, finding that the material can firmly stick the stone, which shows that the material has strong adhesion at the stone interface, good sealing performance and good bonding performance, and the result is shown in figure 3.
Application example 3
The waterproof material was prepared for use in the detection experiments by the method of preparation described in example 1.
Step a: diluting the component A of the prepared waterproof material with water, wherein the dilution ratio is that the waterproof material: water =100, and the waterproof material has the characteristics of low viscosity, high fluidity and high permeability after being uniformly stirred. Then the B component prepared as described in example 1, diluted a component: b component =326:0.55, stirring quickly and evenly to prepare the waterproof grouting material. Curing aging is controlled to be 35min.
Step b: the large cracks needing water plugging are simply filled with cement mortar and the like. The density of the grouting points is designed according to the number of water leakage points, the water quantity and the like, and one glue injection nail is designed every 0.1-0.5 m. And starting a grouting machine to start grouting after the grouting pipeline is connected. And when the waterproof material overflows from the gap, stopping grouting, screwing down the screw, and curing the waterproof material to be injected.
Practical construction verification shows that the material can solve the problems of water prevention, leakage stoppage and the like of tunnels in severe water leakage and water seepage environments, and the result is shown in figure 4. The huge potential of the engineering application is proved, and the waterproof material provided by the invention has high value and research significance for the industrialization and the application of the market.
Application example 4
On the simulation practical application scene, get 500g of the mixture of gravel and soil, get 50g of the A component that example 1 prepared, add 0.05g of B component, the stirring is even, drip on the sample soil surface, after the surface is dried and solidified, 180 upset beakers, observe whether firm bonding has been had gravel and soil, reuse power to pat the beaker outer wall, look over whether its bonding is not hard up, record the thick liquid penetration depth to make corresponding judgement to this material. The results are shown in FIG. 2. As can be seen from figure 2, the prepared slurry can permeate through the pores of the soil, a cross-linking reaction also occurs, the material continuously extends and solidifies and is spread and solidified when the sand structure is used as a substrate and a frame, so that the mixture of sand and soil is anchored, the loosening state of the sand is further controlled, fine pores are sealed, and the dual effects of fixation and water prevention are achieved.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and amendments can be made without departing from the principle of the present invention, and these modifications and amendments should also be considered as the protection scope of the present invention.
Claims (7)
1. A waterproof material comprises a component A and a component B and is characterized in that the waterproof material comprises the following components in parts by mass,
the component A comprises: 5 to 30 parts of water-soluble synthetic resin, 100 to 200 parts of mineral filler, 1 to 3 parts of inorganic reinforcing agent, 0.5 to 5 parts of catalyst, 0.11 to 2 parts of auxiliary agent and 85 to 250 parts of first diluent; the molecular weight of the water-soluble synthetic resin is 10-40 ten thousand, and the water-soluble synthetic resin comprises one or more of hydroxyl acrylic emulsion, hydroxyl styrene-acrylic emulsion and polyvinyl alcohol; the catalyst comprises one of sulfuric acid solution, phosphoric acid solution, acetic acid solution, hydrochloric acid solution, sodium hydroxide and calcium hydroxide;
the component B comprises: 0.01-15 parts of cross-linking agent and 2-5 parts of second diluent; the cross-linking agent comprises one or more of sodium trimetaphosphate, sodium tripolyphosphate, formaldehyde, glutaraldehyde, epichlorohydrin and phosphorus oxychloride;
the mass ratio of the component A to the component B in the waterproof material is 100: (0.001-0.1).
2. The waterproof material of claim 1, wherein said mineral filler comprises one or more of calcium carbonate, calcium oxide, aluminum oxide, calcium sulfate, mica powder, and kaolin; the mesh number of the mineral filler is 800-4000 meshes.
3. The waterproof material of claim 1, wherein the inorganic reinforcing agent comprises one or more of glass frit, sodium dihydrogen phosphate, and aluminum dihydrogen phosphate;
the auxiliary agent comprises a wetting dispersant and a defoaming agent.
4. The waterproof material of claim 1, wherein the first diluent and the second diluent independently comprise one or more of water, ethanol, and ethyl acetate.
5. A method for preparing the waterproof material of any one of claims 1 to 4, comprising the steps of: mixing water-soluble synthetic resin, mineral filler, inorganic reinforcing agent, catalyst, auxiliary agent and first diluent to obtain a component A of the waterproof material;
and mixing the cross-linking agent and the second diluent to obtain the component B of the waterproof material.
6. The waterproof material according to any one of claims 1 to 4 or the waterproof material obtained by the preparation method according to claim 5 is used in the field of waterproofing.
7. The application according to claim 6, wherein the method of applying comprises: mixing the A component and the B component to obtain a mixture, and applying the mixture to the part to be waterproofed.
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| CN112789254B (en) * | 2018-10-01 | 2022-12-16 | Sika技术股份公司 | Bi-component epoxy cement mortar |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1670098A (en) * | 2005-02-25 | 2005-09-21 | 华南理工大学 | Bicomponent normal temperature crosslinked aqueous organosilicon rubber waterproof paint and method for preparing same |
| CN1861713A (en) * | 2006-05-16 | 2006-11-15 | 王睿 | Process of preventing building or ornament from being stuck and daubed adopting organic silicon |
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