CN112280565A - Inorganic aqueous permeable sand consolidation agent and preparation method thereof - Google Patents
Inorganic aqueous permeable sand consolidation agent and preparation method thereof Download PDFInfo
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- CN112280565A CN112280565A CN202011228893.7A CN202011228893A CN112280565A CN 112280565 A CN112280565 A CN 112280565A CN 202011228893 A CN202011228893 A CN 202011228893A CN 112280565 A CN112280565 A CN 112280565A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K17/00—Soil-conditioning materials or soil-stabilising materials
- C09K17/40—Soil-conditioning materials or soil-stabilising materials containing mixtures of inorganic and organic compounds
- C09K17/42—Inorganic compounds mixed with organic active ingredients, e.g. accelerators
- C09K17/46—Inorganic compounds mixed with organic active ingredients, e.g. accelerators the inorganic compound being a water-soluble silicate
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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
- C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
- C04B41/5025—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials with ceramic materials
- C04B41/5048—Phosphates
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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
- C04B41/60—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only artificial stone
- C04B41/61—Coating or impregnation
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2105/00—Erosion prevention
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- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses an inorganic water-based permeable sand consolidation agent and a preparation method thereof, wherein the inorganic water-based permeable sand consolidation agent comprises 40-50 parts by weight of a sodium silicate solution, 2-5 parts by weight of a curing agent, 0.05-0.25 part by weight of a surfactant, 0.8-2 parts by weight of a surface hardening agent and 40-50 parts by weight of deionized water.
Description
Technical Field
The invention relates to the technical field of concrete, in particular to an inorganic water-based permeable sand consolidation agent and a preparation method thereof.
Background
Concrete plays a great role in modern building engineering technology as a widely used building material. However, due to the problems of quality of base surface materials, the mixing proportion of concrete, construction operation, insufficient maintenance and the like, the concrete often has the problems of dusting and sanding, and the service performance and the subsequent construction process of the concrete are seriously influenced.
From the 30 s of the 20 th century internationally, people are engaged in the development and application research of sand consolidation agents, and the main purpose of the research at that time is to control the quicksand at two sides of a desert road and avoid the invasion of storms. Because of the limits of level and condition, the sand consolidation agent not only has single variety, but also has common effect and short retention time, and can not be widely applied. By the sixty-seven decades of this century, the research on sand consolidation agents has gained wide attention again. With the increasing increase in soil desertification, more and more people are added to the line of sand consolidation agent research. The sand consolidation agents on the market at present are mainly divided into two major categories, namely organic sand consolidation agents and inorganic sand consolidation agents, wherein the organic sand consolidation agents mainly comprise macromolecular resins, and the sand consolidation agents usually have higher molecular weight and higher viscosity, so that loose ash and sand on a concrete base surface can be consolidated into a larger stable body; however, the polymer sand consolidation agent also has the defects of poor heat resistance, flammability, aging resistance and the like, and under the long-term action of heat, oxygen and light, the polymer is degraded, the physical and chemical properties and the mechanical properties of the polymer are gradually reduced until the polymer is completely ineffective, so the service life is short. The inorganic sand consolidation agent in the current market mainly takes silicate as a main material, and the sand consolidation agent is generally stable in property, low in price, non-toxic, harmless, long in service life, free of volatile organic substances and small in environmental impact; however, because the reaction speed is high and the permeability is poor, the curing reaction can not be fully completed on the concrete base surface, and the strength of the sand solidification layer is low, so that the sand solidification layer is easily damaged by the external environment.
Therefore, the development of an inorganic water-based permeable sand-fixing material with higher strength has important significance for improving the problems of concrete dusting and sand formation and improving the wear resistance and hardness of a concrete base surface.
Disclosure of Invention
The invention aims to provide an inorganic water-based permeable sand consolidation agent and a preparation method thereof.
In order to achieve the purpose, the invention adopts the technical scheme that: an inorganic water-based permeable sand consolidation agent comprises, by weight, 40-50 parts of a sodium silicate solution, 2-5 parts of a curing agent, 0.05-0.25 part of a surfactant, 0.8-2 parts of a surface hardening agent, and 40-50 parts of deionized water.
As further optimization, the inorganic water-based permeable sand consolidation agent comprises, by weight, 45-50 parts of a sodium silicate solution, 3-5 parts of a curing agent, 0.1-0.15 part of a surfactant, 1-1.5 parts of a surface hardening agent and 40-50 parts of deionized water.
As a further optimization, the modulus of the sodium silicate solution is more than or equal to 3.0, the baume degree of the sodium silicate solution at 20 ℃ is 37-42, and the sodium silicate can be used for consolidating a sand layer by utilizing the self-curing reaction so as to achieve the purpose of consolidating the sand.
As a further optimization, the curing agent is silicon phosphate, and the main function of the curing agent is to react with sodium silicate to generate stable silica gel SiO2So that the sodium silicate forms a layer of compact silica gel film on the concrete base surface to achieve the purpose of sand consolidation. It can be produced by hydrolysis of H+Combined with sodium silicate to replace Na with water-absorbing property in sodium silicate+To form silicic acid gel SiO2·nH2O, dehydration to produce silica SiO2So as to form a compact film and achieve the purpose of sand consolidation.
As a further optimization, the fineness of the curing agent is 100-150 meshes.
As a further optimization, the surfactant is sodium dodecyl benzene sulfonate or sodium dodecyl sulfate, and the surfactant mainly functions to reduce the surface tension of an interface and promote the permeation of materials; in addition, the surfactant can play a role in dispersion, and can prevent the agglomeration of sodium silicate colloidal particles, so that the sodium silicate is kept in a nano-scale size, and the penetration of the material in concrete is facilitated.
As a further optimization, the surface hardening agent is magnesium hexafluorosilicate, and the strength, hardness and abrasion resistance of the concrete surface can be improved.
As a further optimization, the resistivity of the deionized water is more than or equal to 10 megaohm-cm.
The invention also provides a preparation method of the inorganic water-based permeable sand consolidation agent, which comprises the following steps,
s1) accurately weighing each component;
s2) adding a proper amount of deionized water into the sodium silicate solution, and stirring and fully diluting to prepare a component A;
s3) adding the curing agent, the surfactant and the surface hardening agent into the residual deionized water in sequence, and stirring and fully dissolving to prepare a component B;
s4) adding the component B into the component A, and stirring and mixing uniformly to obtain the inorganic aqueous permeable sand consolidation agent.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention has more stable material system: the materials used in the invention are all inorganic materials, have stronger acid and alkali corrosion resistance, stronger aging resistance in heat, light and oxygen environments, long service life, difficult aging, safer and more environment-friendly use, do not contain volatile organic substances and have smaller environmental influence.
2. The main agent sodium silicate in the invention belongs to common inorganic materials, is easier to prepare into aqueous reagents, and has better permeability;
3. the surfactant can remarkably reduce the surface tension of an interface, effectively promote the permeation of materials, simultaneously play a role in dispersion, and effectively hinder the agglomeration of sodium silicate colloidal particles, so that the sodium silicate keeps a nano-scale size and is beneficial to the permeation of materials in concrete.
4. The surface hardening agent can fix products such as calcium hydroxide on the surface of concrete, prevent the surface from weathering and effectively improve the strength, hardness and abrasion resistance of the surface of the concrete.
Detailed Description
The following are specific examples of the present invention and further describe the technical solutions of the present invention, but the present invention is not limited to these examples.
Example 1
An inorganic aqueous permeable sand consolidation agent comprises, by weight, 47 parts of a sodium silicate solution, 4.7 parts of silicon phosphate, 0.14 part of sodium dodecyl benzene sulfonate, 1.16 parts of magnesium fluosilicate and 46 parts of deionized water, wherein the modulus of the sodium silicate solution is 3.0, the baume degree is 38.4, and the fineness of the silicon phosphate is 120 meshes.
The preparation method comprises the following steps: s1) accurately weighing each component; s2) adding a proper amount of deionized water into the sodium silicate solution, and stirring and fully diluting to prepare a component A; s3) adding the silicon phosphate, sodium dodecyl benzene sulfonate and magnesium fluosilicate into the residual deionized water in sequence, and stirring and fully dissolving to prepare a component B; s4) adding the component B into the component A, and stirring and mixing uniformly to obtain the inorganic aqueous permeable sand consolidation agent.
Example 2
An inorganic aqueous permeable sand consolidation agent comprises, by weight, 47 parts of a sodium silicate solution, 3.8 parts of silicon phosphate, 0.14 part of sodium dodecyl benzene sulfonate, 1.25 parts of magnesium fluosilicate and 46 parts of deionized water, wherein the modulus of the sodium silicate solution is 3.0, the baume degree is 38.4, and the fineness of the silicon phosphate is 120 meshes.
The preparation method comprises the following steps: s1) accurately weighing each component; s2) adding a proper amount of deionized water into the sodium silicate solution, and stirring and fully diluting to prepare a component A; s3) adding the silicon phosphate, sodium dodecyl benzene sulfonate and magnesium fluosilicate into the residual deionized water in sequence, and stirring and fully dissolving to prepare a component B; s4) adding the component B into the component A, and stirring and mixing uniformly to obtain the inorganic aqueous permeable sand consolidation agent.
Example 3
An inorganic aqueous permeable sand consolidation agent comprises, by weight, 45 parts of a sodium silicate solution, 5.2 parts of silicon phosphate, 0.15 part of sodium dodecyl benzene sulfonate, 1.55 parts of magnesium fluosilicate and 45 parts of deionized water, wherein the modulus of the sodium silicate solution is 3.0, the baume degree is 38.4, and the fineness of the silicon phosphate is 120 meshes.
The preparation method comprises the following steps: s1) accurately weighing each component; s2) adding a proper amount of deionized water into the sodium silicate solution, and stirring and fully diluting to prepare a component A; s3) adding the silicon phosphate, sodium dodecyl benzene sulfonate and magnesium fluosilicate into the residual deionized water in sequence, and stirring and fully dissolving to prepare a component B; s4) adding the component B into the component A, and stirring and mixing uniformly to obtain the inorganic aqueous permeable sand consolidation agent.
Application examples
The sand consolidation test method comprises the following steps: measuring 100g of fine sand with the average particle size of less than 0.35mm, filling the fine sand into a glass tube with the diameter of 25 mm multiplied by 150mm, injecting the inorganic water-based permeable sand consolidation agent prepared in the examples 1 to 3 to ensure that the sand in the glass tube is fully absorbed, placing the glass tube into an oven, solidifying the glass tube for 48 hours at the temperature of 50 ℃, taking out the glass tube and cooling the glass tube to the room temperature, taking out a consolidation core, grinding the end face of the consolidation core to be flat, and measuring the compressive strength of the consolidation core; similarly, 100g of medium sand with the average particle size of 0.35-0.5 mm and 100g of coarse sand with the average particle size of more than 0.5mm are taken to carry out the experiment in sequence, the compressive strength is tested by using commercially available conventional products of sodium fluosilicate and calcium chloride as comparative examples, and the experimental data are shown in the following table.
TABLE EXAMPLES 1 TO 3 COMPARATIVE EXAMPLES WITH THE COMPRESSION STRENGTH OF THE SAME PRODUCTS
According to experimental data, after the inorganic water-based permeable sand consolidation agent prepared in example 1 is used for sand consolidation, the compressive strength of each river sand sample is 1.63-2.52Mpa, after the inorganic water-based permeable sand consolidation agent prepared in example 2 is used for sand consolidation, the compressive strength of each river sand sample is 1.47-2.24Mpa, and after the inorganic water-based permeable sand consolidation agent prepared in example 3 is used for sand consolidation, the compressive strength of each river sand sample is 1.84-2.92Mpa, and the smaller the grain size of sand is, the higher the consolidation strength is, and the better the sand consolidation effect is; compared with the existing products, the inorganic water-based permeable sand consolidation agent has a sand consolidation effect obviously better than other products for river sand with different particle sizes.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (9)
1. The inorganic water-based permeable sand consolidation agent is characterized by comprising, by weight, 40-50 parts of a sodium silicate solution, 2-5 parts of a curing agent, 0.05-0.25 part of a surfactant, 0.8-2 parts of a surface hardening agent and 40-50 parts of deionized water.
2. The inorganic water-based permeable sand consolidation agent according to claim 1, which comprises, by weight, 45-50 parts of a sodium silicate solution, 3-5 parts of a curing agent, 0.1-0.15 part of a surfactant, 1-1.5 parts of a surface hardening agent, and 40-50 parts of deionized water.
3. The inorganic aqueous permeable sand consolidating agent of claim 1, wherein said sodium silicate solution has a modulus of 3.0 or more and a baume degree at 20 ℃ of 37 to 42.
4. The inorganic aqueous permeable sand consolidating agent of claim 1, wherein said curing agent is one or more of silicon phosphate, sodium tripolyphosphate, and aluminum potassium sulfate dodecahydrate.
5. The inorganic aqueous permeable sand-fixing agent as claimed in claim 1, wherein the fineness of the curing agent is 100-150 mesh.
6. The inorganic aqueous permeable sand consolidating agent of claim 1, wherein the surfactant is sodium dodecylbenzene sulfonate or sodium dodecyl sulfate.
7. The inorganic aqueous permeable sand-fixing agent according to claim 1, wherein the surface hardening agent is one or both of magnesium hexafluorosilicate and sodium hexafluorosilicate.
8. The inorganic aqueous permeable sand consolidating agent of claim 1, wherein the deionized water has an electrical resistivity of 10 megaohm-cm or higher.
9. The method for preparing the inorganic aqueous permeable sand-fixing agent according to any one of the claims 1 to 8, comprising the steps of,
s1) accurately weighing each component;
s2) adding a proper amount of deionized water into the sodium silicate solution, and stirring and fully diluting to prepare a component A;
s3) adding the curing agent, the surfactant and the surface hardening agent into the residual deionized water in sequence, and stirring and fully dissolving to prepare a component B;
s4) adding the component B into the component A, and stirring and mixing uniformly to obtain the inorganic aqueous permeable sand consolidation agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202011228893.7A CN112280565A (en) | 2020-11-06 | 2020-11-06 | Inorganic aqueous permeable sand consolidation agent and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011228893.7A CN112280565A (en) | 2020-11-06 | 2020-11-06 | Inorganic aqueous permeable sand consolidation agent and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115108754A (en) * | 2022-07-25 | 2022-09-27 | 迈嘉尔(武汉)高新技术发展有限公司 | Concrete surface reinforcing hardener and preparation method thereof |
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2020
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Patent Citations (6)
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| CN115108754A (en) * | 2022-07-25 | 2022-09-27 | 迈嘉尔(武汉)高新技术发展有限公司 | Concrete surface reinforcing hardener and preparation method thereof |
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