A surface treatment agent, a method for producing the same, and use thereof

Abstract

The application discloses a surface treatment agent and a preparation method and application thereof, and preparation raw materials include 10-40 parts of micron-grade diamond sand and 60-90 parts of an organic treatment agent according to weight parts; preparation raw materials of the organic treatment agent include a silane coupling agent and a surfactant; the silane coupling agent includes at least one of isobutyl triethoxysilane, methyl triethoxysilane, propenyl triethoxysilane and butyl acrylate-based triethoxysilane; and the surfactant includes at least one of sodium dodecyl benzene sulfonate, gamma-aminopropyl trimethoxysilane, epoxy propenyl trimethoxysilane and methyl trimethoxysilane. The application provides a surface treatment agent, the surface treatment agent is sprayed to a concrete surface according to the application scheme, the wear resistance and the anti-cracking performance of the concrete surface are enhanced, a large amount of the surface treatment agent is saved, and the concrete cost is reduced.

Description

Technical Field

[0001] This invention belongs to the field of concrete technology, and in particular relates to a surface treatment agent, its preparation method, and its application. Background Technology

[0002] Concrete is a general term for composite materials made by mixing gel materials, aggregates, and water in appropriate proportions, followed by curing after a period of time. Currently, concrete remains the preferred material for overlays on airport pavements. However, concrete has limited flexural strength, abrasion resistance, and crack resistance. Furthermore, civil aircraft are heavy and travel at high speeds, subjecting concrete pavement surfaces to immense impact forces, which can easily lead to fractures, cracks, and severe surface wear, thus affecting aircraft safety.

[0003] Therefore, there is an urgent need for a surface treatment agent to improve the wear resistance of airport pavements. Summary of the Invention

[0004] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, the present invention proposes a surface treatment agent, which, when sprayed onto the concrete surface, enhances the wear resistance of the concrete surface and saves a large amount of surface treatment agent.

[0005] The present invention also proposes a method for preparing the above-mentioned surface treatment agent.

[0006] The present invention also proposes the application of the above-mentioned surface treatment agent in concrete pavement.

[0007] According to one aspect of the present invention, a surface treatment agent is provided, wherein the raw materials for preparation, by weight, include: 10-40 parts of micron-sized diamond abrasive and 60-90 parts of organic treatment agent;

[0008] The raw materials for preparing the organic treatment agent include: silane coupling agent and surfactant;

[0009] The silane coupling agent includes at least one of methyltriethoxysilane, propenyltriethoxysilane, and butyl acrylate triethoxysilane;

[0010] The surfactant includes at least one of γ-aminopropyltrimethoxysilane, epoxypropylenetrimethoxysilane, and methyltrimethoxysilane.

[0011] The embodiments of the first aspect of the present invention have at least the following beneficial effects:

[0012] The surface treatment agent of this invention contains both an organic treatment agent and micron-sized corundum. The methyltriethoxysilane in the organic treatment agent, after passing through the capillary walls of concrete, reacts with hydrated cement to form a silane interpenetrating network structure. Through a strong chemical bonding reaction, it imparts surface tension to the concrete, thereby effectively improving the surface wear resistance. The micron-sized corundum increases the sand ratio on the concrete surface. Within a certain range, when the sand ratio increases (i.e., more fine aggregate), the surface wear resistance significantly improves. Furthermore, the wear resistance of corundum is far greater than that of ordinary manufactured sand or river sand. Simultaneously, the micron-sized corundum can fill the pores of the hydration products, making the cement paste structure denser. This invention combines the organic treatment agent with micron-sized corundum, giving the surface treatment agent both chemical treatment and physical filling functions, resulting in superior performance compared to single surface treatment agents used in the market. This invention also allows the surface treatment agent to be uniformly sprayed onto the concrete surface, enhancing the wear resistance of the concrete surface.

[0013] In some embodiments of the present invention, the raw materials for preparing the surface treatment agent, by weight, include: 30-40 parts of micron-sized corundum and 60-70 parts of organic treatment agent;

[0014] The raw materials for preparing the organic treatment agent include: silane coupling agent and surfactant;

[0015] The silane coupling agent includes at least one of methyltriethoxysilane, propenyltriethoxysilane, and butyl acrylate triethoxysilane;

[0016] The surfactant includes at least one of γ-aminopropyltrimethoxysilane, epoxypropylenetrimethoxysilane, and methyltrimethoxysilane.

[0017] In some embodiments of the present invention, the raw materials for preparing the organic treatment agent further include a solvent;

[0018] The solvent includes at least one of propylene glycol monobutyl ether, ethylene glycol, and methyl chloride.

[0019] In some embodiments of the present invention, the micron-sized diamond is of grade F, with a particle size ranging from 50 μm to 150 μm.

[0020] In some embodiments of the present invention, the raw materials for preparing the organic treatment agent, by weight, include: 20-30 parts of silane coupling agent, 20-30 parts of surfactant, and 60-80 parts of solvent.

[0021] In some embodiments of the present invention, the raw materials for preparing the organic treatment agent further include polyethylene glycol distearate modified with hydroxyl groups.

[0022] According to an embodiment of a second aspect of the present invention, a method for preparing a surface treatment agent is provided, comprising the following steps:

[0023] S1: The organic treatment agent is obtained by mixing and dispersing the surfactant and the silane coupling agent;

[0024] S2: Mix and disperse the micron-sized diamond and the organic treatment agent.

[0025] In some embodiments of the present invention, step S1 further includes the addition of polyethylene glycol distearate modified with hydroxyl groups.

[0026] In some embodiments of the present invention, the method for preparing the hydroxyl-modified polyethylene glycol distearate includes: dispersing and reacting a hydroxyl modifier and polyethylene glycol distearate.

[0027] The ester bonds in polyethylene glycol distearate are inherently dynamic. The long carbon chain (stearic acid) increases the flexibility and mobility of the ester bonds, allowing them to break and recombine relatively easily under external forces. Simultaneously, polyethylene glycol (PEG) serves as the main chain, with stearate groups attached to both ends. The flexible nature of the PEG chain facilitates the partial breakage of the stearate ester bonds under external stress. Self-repair is then achieved through the movement and recombination of the molecular chains. In concrete structures, when microcracks appear, the polymer's molecular chains can break around the crack and then recombine after the force disappears or conditions change, effectively repairing the crack.

[0028] Introducing hydroxyl groups (-OH) into the molecular structure of polyethylene glycol distearate enhances its interaction with concrete hydration substances and improves its permeability. This increases the affinity and compatibility between the polymer and aqueous media (such as hydration substances in concrete), thereby promoting more effective penetration into the capillaries and microcracks of concrete. Micron-sized corundum directly participates in the pozzolanic reaction of cement, consuming the calcium hydroxide produced during cement hydration and generating more hydrated calcium silicate gel, accelerating the hydration rate of tricalcium silicate, and thus increasing the degree of hydration. This further promotes the filling of the pores of hydration products into the pores of the modified hydroxyl-containing polyethylene glycol distearate.

[0029] In some embodiments of the present invention, the raw materials for preparing the hydroxyl-modified polyethylene glycol distearate further include a dispersant, wherein the dispersant includes propylene glycol monobutyl ether.

[0030] In some embodiments of the present invention, the hydroxyl modifier includes hydroxyethyl acrylate.

[0031] In some embodiments of the present invention, the reaction temperature is 60–80°C.

[0032] An embodiment of the third aspect of the present invention provides the application of a surface treatment agent in concrete pavement.

[0033] In some embodiments of the present invention, the concrete pavement includes an airport pavement.

[0034] In some embodiments of the invention, the application includes spraying a surface treatment agent onto a concrete surface.

[0035] In some embodiments of the present invention, the spraying amount is 5–20 g / m³. 2 . Detailed Implementation

[0036] The terms "preferred," "more preferably," etc., used in this invention refer to embodiments of the invention that provide certain beneficial effects under certain circumstances. However, other embodiments may also be preferred under the same or other circumstances. Furthermore, the description of one or more preferred embodiments does not imply that other embodiments are unavailable, nor is it intended to exclude other embodiments from the scope of this invention.

[0037] When a numerical range is disclosed herein, the range is considered continuous and includes the minimum and maximum values ​​of the range, as well as every value between the minimum and maximum values. Furthermore, when the range refers to integers, it includes every integer between the minimum and maximum values ​​of the range. Additionally, when multiple ranges are provided to describe a feature or characteristic, the ranges may be combined. In other words, unless otherwise specified, all ranges disclosed herein should be understood to include any and all subranges to which they are incorporated.

[0038] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of the present invention.

[0039] Unless otherwise specified, the reagents, methods and equipment used in this invention are all conventional reagents, methods and equipment in this technical field.

[0040] Example 1

[0041] This embodiment describes the preparation of an airport pavement concrete surface treatment agent that enhances wear resistance, comprising the following components by weight:

[0042] The surface treatment agent, consisting of 70 parts organic treatment agent and 30 parts micron-sized corundum, is prepared in the following steps:

[0043] A1. Add 20 parts of γ-aminopropyltrimethoxysilane to 60 parts of propylene glycol monobutyl ether and stir until homogeneous to obtain an organic solvent;

[0044] A2. Add 10 parts of methyltriethoxysilane to the above organic solvent and stir until homogeneous to obtain the organic treatment agent;

[0045] A3. Add 30 parts of micron-sized diamond abrasive to 70 parts of the above-mentioned organic treatment agent, and ultrasonically disperse for 5 minutes to ensure complete and uniform dispersion, thereby obtaining the surface treatment agent.

[0046] After concrete vibration and before grouting and leveling, apply the above surface treatment agent at a concentration of 15g / m³. 2 Spray evenly onto the concrete surface.

[0047] Example 2

[0048] This embodiment describes the preparation of an airport pavement concrete surface treatment agent that enhances wear resistance, comprising the following components by weight:

[0049] The preparation steps for a surface treatment agent composed of an organic treatment agent and micron-sized diamond abrasive are as follows:

[0050] A1. Add 20 parts of γ-aminopropyltrimethoxysilane to 60 parts of propylene glycol monobutyl ether and stir until homogeneous to obtain an organic solvent;

[0051] A2. Add 20 parts of methyltriethoxysilane to the above organic solvent and stir until homogeneous to obtain the organic treatment agent;

[0052] A3. Add 30 parts of micron-sized diamond abrasive to 70 parts of the above-mentioned organic treatment agent, and ultrasonically disperse for 5 minutes to ensure complete and uniform dispersion, thereby obtaining the surface treatment agent.

[0053] The specific preparation and application methods are the same as in Example 1. After concrete vibration and before kneading and leveling, apply the above surface treatment agent at a concentration of 15 g / m³. 2 Spray evenly onto the concrete surface.

[0054] Example 3

[0055] This embodiment describes the preparation of a surface treatment agent for airport pavement concrete that enhances wear resistance.

[0056] The preparation steps for a surface treatment agent composed of an organic treatment agent and micron-sized diamond abrasive are as follows:

[0057] A1. Add 20 parts of γ-aminopropyltrimethoxysilane to 60 parts of propylene glycol monobutyl ether and stir until homogeneous to obtain an organic solvent;

[0058] A2. Add 30 parts of isomethyltriethoxysilane to the above organic solvent and stir until homogeneous to obtain an organic treatment agent;

[0059] A3. Add 30 parts of micron-sized diamond abrasive to 70 parts of the above-mentioned organic treatment agent, and ultrasonically disperse for 5 minutes to ensure complete and uniform dispersion, thereby obtaining the surface treatment agent.

[0060] The specific preparation and application methods are the same as in Example 1. After concrete vibration and before kneading and leveling, apply the above surface treatment agent at a concentration of 15 g / m³. 2 Spray evenly onto the concrete surface.

[0061] Example 4

[0062] This embodiment describes the preparation of a surface treatment agent for airport pavement concrete that enhances wear resistance.

[0063] The preparation steps for a surface treatment agent composed of an organic treatment agent and micron-sized diamond abrasive are as follows:

[0064] A1. Add 20 parts of γ-aminopropyltrimethoxysilane to 60 parts of propylene glycol monobutyl ether and stir until homogeneous to obtain an organic solvent;

[0065] A2. Add 20 parts of methyltriethoxysilane to the above organic solvent and stir until homogeneous to obtain the organic treatment agent;

[0066] A3. Add 40 parts of micron-sized diamond abrasive to 70 parts of the above-mentioned organic treatment agent, and ultrasonically disperse for 5 minutes to ensure complete and uniform dispersion, thereby obtaining the surface treatment agent.

[0067] The specific preparation and application methods are the same as in Example 1. After concrete vibration and before kneading and leveling, apply the above surface treatment agent at a concentration of 15 g / m³. 2 Spray evenly onto the concrete surface.

[0068] Example 5

[0069] This embodiment describes the preparation of a surface treatment agent for airport pavement concrete that enhances wear resistance.

[0070] The preparation steps for a surface treatment agent composed of an organic treatment agent and micron-sized diamond abrasive are as follows:

[0071] A1. Add 20 parts of γ-aminopropyltrimethoxysilane to 60 parts of propylene glycol monobutyl ether and stir until homogeneous to obtain an organic solvent;

[0072] A2. Add 20 parts of methyltriethoxysilane to the above organic solvent and stir until homogeneous to obtain the organic treatment agent;

[0073] A3. Add 20 parts of micron-sized diamond abrasive to 70 parts of the above-mentioned organic treatment agent, and ultrasonically disperse for 5 minutes to ensure complete and uniform dispersion, thereby obtaining the surface treatment agent.

[0074] The specific preparation and application methods are the same as in Example 1. After concrete vibration and before kneading and leveling, apply the above surface treatment agent at a concentration of 15 g / m³. 2 Spray evenly onto the concrete surface.

[0075] Example 6

[0076] This embodiment describes the preparation of a surface treatment agent for airport pavement concrete that enhances wear resistance.

[0077] The preparation steps for a surface treatment agent composed of an organic treatment agent and micron-sized diamond abrasive are as follows:

[0078] A1. Add 20 parts of γ-aminopropyltrimethoxysilane to 60 parts of propylene glycol monobutyl ether and stir until homogeneous to obtain an organic solvent;

[0079] A2. Add 20 parts of methyltriethoxysilane to the above organic solvent and stir until homogeneous to obtain the organic treatment agent;

[0080] A3. Add 10 parts of micron-sized diamond abrasive to 70 parts of the above-mentioned organic treatment agent, and ultrasonically disperse for 5 minutes to ensure complete and uniform dispersion, thereby obtaining the surface treatment agent.

[0081] The specific preparation and application methods are the same as in Example 1. After concrete vibration and before kneading and leveling, apply the above surface treatment agent at a concentration of 15 g / m³. 2 Spray evenly onto the concrete surface.

[0082] Example 7

[0083] This embodiment describes the preparation of a surface treatment agent for airport pavement concrete that enhances wear resistance.

[0084] The preparation steps for a surface treatment agent composed of an organic treatment agent and micron-sized diamond abrasive are as follows:

[0085] A1. Add 20 parts of γ-aminopropyltrimethoxysilane to 60 parts of propylene glycol monobutyl ether and stir until homogeneous to obtain an organic solvent;

[0086] A2. Add 20 parts of methyltriethoxysilane to the above organic solvent and stir until homogeneous to obtain the organic treatment agent;

[0087] A3. Add 30 parts of micron-sized diamond abrasive to 70 parts of the above-mentioned organic treatment agent, and ultrasonically disperse for 5 minutes to ensure complete and uniform dispersion, thereby obtaining the surface treatment agent.

[0088] The specific preparation and application methods are the same as in Example 1. After concrete vibration and before kneading and leveling, apply the above surface treatment agent at a concentration of 10 g / m³. 2 Spray evenly onto the concrete surface.

[0089] Example 8

[0090] This embodiment describes the preparation of a surface treatment agent for airport pavement concrete that enhances wear resistance.

[0091] The preparation steps for a surface treatment agent composed of an organic treatment agent and micron-sized diamond abrasive are as follows:

[0092] A1. Add 20 parts of γ-aminopropyltrimethoxysilane to 60 parts of propylene glycol monobutyl ether and stir until homogeneous to obtain an organic solvent;

[0093] A2. Add 20 parts of methyltriethoxysilane to the above organic solvent and stir until homogeneous to obtain the organic treatment agent;

[0094] A3. Add 30 parts of micron-sized diamond abrasive to 70 parts of the above-mentioned organic treatment agent, and ultrasonically disperse for 5 minutes to ensure complete and uniform dispersion, thereby obtaining the surface treatment agent.

[0095] The specific preparation and application methods are the same as in Example 1. After concrete vibration and before kneading and leveling, apply the above surface treatment agent at a concentration of 20 g / m³. 2 Spray evenly onto the concrete surface.

[0096] Example 9

[0097] This embodiment describes the preparation of a surface treatment agent for airport pavement concrete that enhances wear resistance.

[0098] The preparation steps for a surface treatment agent composed of an organic treatment agent and micron-sized diamond abrasive are as follows:

[0099] A1. Add 30 parts of γ-aminopropyltrimethoxysilane to 60 parts of xylene and stir until homogeneous to obtain an organic solvent;

[0100] A2. Add 20 parts of methyltriethoxysilane to the above organic solvent and stir until homogeneous to obtain the organic treatment agent;

[0101] A3. Add 30 parts of micron-sized diamond abrasive to 70 parts of the above-mentioned organic treatment agent, and ultrasonically disperse for 5 minutes to ensure complete and uniform dispersion, thereby obtaining the surface treatment agent.

[0102] The preparation method of hydroxyl-modified polyethylene glycol distearate includes the following steps:

[0103] B1. Add 100g of polyethylene glycol 2000 distearate and 200g of xylene to a reaction vessel and heat to 100℃. Then add 10g of hydroxyethyl acrylate and 0.5g of formic acid and stir for 2h to obtain hydroxyl-modified polyethylene glycol distearate.

[0104] B2. After the reaction is complete, stop heating and allow the reaction solution to cool to room temperature. After cooling, use a filtration device to filter out the solid residue in the solvent to obtain a hydroxyl-modified polyethylene glycol distearate solution.

[0105] The specific preparation and application methods are the same as in Example 1; after concrete vibration and before kneading and leveling, apply the above surface treatment agent at a concentration of 15g / m³. 2 Spray evenly onto the concrete surface;

[0106] Comparative Example 1

[0107] This comparative example prepared an airport pavement concrete surface treatment agent with enhanced wear resistance. The only difference from Example 1 is that the organic treatment agent does not contain γ-aminopropyltrimethoxysilane.

[0108] The specific preparation method and usage method are the same as in Example 2.

[0109] Comparative Example 2

[0110] This comparative example prepared an airport pavement concrete surface treatment agent to enhance wear resistance. The only difference from Example 1 is that the surface treatment agent does not contain micron-sized corundum.

[0111] The specific preparation and usage methods are the same as in Implementation 2.

[0112] Comparative Example 3

[0113] This comparative example prepared an airport pavement concrete surface treatment agent to enhance wear resistance. The only difference from Example 2 is that the surface treatment agent was not used after the concrete was vibrated and before it was kneaded and leveled.

[0114] Comparative Example 4

[0115] This comparative example prepared an airport pavement concrete surface treatment agent with enhanced wear resistance. The only difference from Example 2 is that fly ash is used instead of micron-sized corundum.

[0116] Comparative Example 5

[0117] This comparative example prepared an airport pavement concrete surface treatment agent with enhanced wear resistance. The only difference from Example 2 is that phenyltriethoxysilane was used instead of micron-sized corundum.

[0118] Test case

[0119] This test example evaluated the performance of the airport pavement concrete surface treatment agents with enhanced wear resistance prepared in Examples 1-9 and Comparative Examples 1-3.

[0120] Abrasion resistance testing:

[0121] The concrete prepared in Examples 1-9 and Comparative Examples 1-3 of this invention was molded and cured in accordance with JTG 3420-2020 "Test Procedures for Cement and Cement Concrete in Highway Engineering" and relevant performance tests were conducted. The test results are shown in Table 1. The experiment was repeated 3 times and the average value was taken.

[0122] Table 1 Performance of Concrete Surface Treatment Agents

[0123]

[0124]

[0125] The results are shown in Table 1. From Examples 1-6 and Comparative Examples 1-2 in Table 1, it can be seen that micron-sized corundum has a greater impact on surface wear resistance than methyltriethoxysilane. When the dosage of other components is the same, within the range of 10-30 parts of micron-sized corundum, the 28-day wear of concrete decreases with increasing content of micron-sized corundum in the surface treatment agent. This is because micron-sized corundum increases the sand ratio of the concrete surface. Within a certain range, when the sand ratio increases (i.e., more fine aggregate), the surface wear resistance will significantly improve. Furthermore, the wear resistance of corundum is far greater than that of ordinary manufactured sand or river sand. Simultaneously, micron-sized corundum can fill the pores of hydration products, making the cement paste structure more compact. Therefore, within a certain range, a higher content of micron-sized corundum in the surface treatment agent is better. However, when the content of micron-sized corundum exceeds 30 parts, on the one hand, ultrasonic methods cannot completely disperse it in the organic solvent; on the other hand, the concrete surface slurry cannot completely coat the corundum, resulting in the formation of independent blocky areas that are easily worn.

[0126] After passing through the capillary walls of the concrete, the methyltriethoxysilane in the organic treatment agent reacts with the hydrated cement to form a silane interpenetrating network structure. Through a strong chemical bonding reaction, it imparts surface tension to the concrete, thereby effectively improving the surface wear resistance of the concrete.

[0127] This invention mixes two organic treatment agents with micron-sized corundum, giving the surface treatment agent both chemical treatment and physical filling functions, resulting in superior performance compared to single surface treatment agents used in the market.

[0128] As can be seen from Examples 2, 7-8, and Comparative Example 3 in the table, the surface abrasion of concrete is extremely high when no surface treatment agent is used, meaning the surface abrasion resistance of concrete is poor. When a surface treatment agent is sprayed onto the surface, the surface abrasion of concrete first decreases and then increases with the increase of the surface treatment agent spraying amount. When the surface treatment agent spraying amount is 15 g / m², the surface abrasion decreases further. 2The lowest abrasion rate and strongest abrasion resistance were observed initially, but the surface properties of the specimens actually decreased with increasing spraying amount. This is because when the surface treatment agent was applied in small quantities, it was insufficient to fully cover the concrete surface, failing to form a complete surface reaction layer, and thus the overall abrasion resistance was not enhanced. When the surface treatment agent was applied in excessive amounts, the excess agent could not penetrate the capillary walls into the concrete during the curing period. The remaining agent formed a film on the concrete surface, which, after a certain number of abrasion cycles, was completely removed from the concrete surface, leading to increased abrasion rate and decreased abrasion resistance.

[0129] Combining Examples 1-8 and Comparative Examples 1-3, with an organic treatment agent dosage of 70 parts and micron-sized corundum of 30 parts, the present invention can significantly improve the wear resistance of airport pavement concrete surfaces without significantly increasing concrete costs.

[0130] Example 9: The addition of hydroxyl-modified polyethylene glycol distearate further reduced the 28-day abrasion loss, thus further enhancing the abrasion resistance of the concrete surface.

[0131] In Comparative Example 4, fly ash was used to replace micron-sized corundum. The filling effect of fly ash was relatively limited, which meant that the pore structure of the concrete could not be effectively improved, thus affecting the crack resistance of the concrete.

[0132] In Comparative Example 5, phenyltriethoxysilane was used to replace micron-sized corundum. The introduction of the phenyl group affected the chemical reaction between silane and cement hydration products, resulting in a less effective amount and quality of calcium silicate gel than methyltriethoxysilane, which in turn affected the strength and wear resistance of the concrete.

[0133] The above description provides a detailed account of the embodiments of the present invention. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention. Furthermore, unless otherwise specified, the embodiments of the present invention and the features thereof can be combined with each other.

Claims

1. A surface treatment agent, characterized in that, By weight, the raw materials for preparation include: 10-40 parts of micron-sized diamond abrasive and 60-90 parts of organic treatment agent; The raw materials for preparing the organic treatment agent include: 20-30 parts of a silane coupling agent, 20-30 parts of a surfactant, and 60-80 parts of a solvent. The silane coupling agent includes at least one selected from isobutyltriethoxysilane, methyltriethoxysilane, propenyltriethoxysilane, and butyl acrylate triethoxysilane. The surfactant includes at least one selected from sodium dodecylbenzenesulfonate, γ-aminopropyltrimethoxysilane, epoxypropenyltrimethoxysilane, and methyltrimethoxysilane. The solvent includes at least one selected from xylene, propylene glycol monobutyl ether, ethylene glycol, and methane chloride. The raw materials for preparing the organic treatment agent also include hydroxyl-modified polyethylene glycol distearate. The preparation method of the hydroxyl-modified polyethylene glycol distearate includes: dispersing and reacting the hydroxyl modifier and polyethylene glycol distearate, wherein the reaction temperature is 60~80℃.

2. The surface treatment agent according to claim 1, characterized in that, The micron-sized diamond abrasive is of grade F, with a particle size ranging from 50 μm to 150 μm.

3. A method for preparing a surface treatment agent as described in any one of claims 1 or 2, characterized in that, Includes the following steps: S1: An organic treatment agent is obtained by mixing and dispersing the surfactant, the silane coupling agent, the hydroxyl-modified polyethylene glycol distearate, and the solvent; S2: Mix and disperse the micron-sized diamond and the organic treatment agent.

4. The application of a surface treatment agent as described in any one of claims 1 to 2 in concrete pavement.

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