Wear-resistant impermeable cement-based material, method for its production and use

Abstract

The application discloses a wear-resistant and anti-permeable cement-based material and a preparation method and application thereof, and belongs to the technical field of cementing materials. The wear-resistant and anti-permeable cement-based material is prepared from the following raw materials in mass fractions: 400-800 parts of cementing materials, 200-400 parts of water, 15-150 parts of wear-resistant additives, 0-30 parts of water reducing agents and 0-20 parts of surface modifiers; the wear-resistant additives are selected from super high molecular weight polyethylene powders. The wear-resistant additives, i.e. the super high molecular weight polyethylene, have excellent wear resistance and very low water absorption, and the cementing materials are modified by using the wear-resistant additives, so that the permeability of the cement-based material can be greatly reduced; the obtained cement-based material has low water absorption and capillary absorption coefficient, has a dense pore structure and good hydrophobic property, has excellent anti-permeability and durability, and can effectively prolong the service life of the cement-based material and reduce the maintenance and maintenance cost of large-scale infrastructure projects in the later period.

Description

Technical Field

[0001] This invention belongs to the field of cementitious materials technology, and particularly relates to a wear-resistant and impermeable cement-based material, its preparation method and application. Background Technology

[0002] Abrasion-resistant concrete is a type of cement-based material widely used in roads, bridge decks, airport runways, and parking lots. Because it needs to withstand dynamic loads and harsh environments, abrasion-resistant concrete requires good strength and durability. Abrasion resistance, impermeability, impact resistance, and freeze-thaw resistance are all indicators of its durability. Among these durability indicators, abrasion resistance and impermeability are key factors.

[0003] Currently, there are two main types of materials used in wear-resistant concrete: one type directly enhances the wear resistance of concrete. These materials can replace some fine aggregates and commonly include steel scrap, steel fibers, corundum, and calcined alumina sand. Among these, steel scrap, steel fibers, and corundum are particularly effective, but they are expensive and detrimental to concrete construction. The other type consists of admixtures that enhance the density and strength of concrete, commonly including silica fume and ultrafine slag powder. These materials only improve wear resistance by enhancing the density of concrete; the materials themselves do not possess wear resistance, thus their improvement in wear resistance is limited. Therefore, developing a low-cost modified cementitious material with excellent wear resistance is crucial for improving the durability of wear-resistant concrete, extending the service life of infrastructure, and significantly reducing the maintenance costs of infrastructure structures. Summary of the Invention

[0004] In order to overcome the problems existing in the prior art, one of the objectives of the present invention is to provide a wear-resistant and impermeable cement-based material, which has a dense pore structure and good hydrophobicity, and excellent impermeability and durability.

[0005] The second objective of this invention is to provide a method for preparing the above-mentioned wear-resistant and impermeable cement-based material.

[0006] The third objective of this invention is to provide an application of the above-mentioned wear-resistant and impermeable cement-based material in the field of infrastructure construction.

[0007] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0008] The first aspect of the present invention provides a wear-resistant and impermeable cement-based material, which is prepared from the following raw materials in parts by weight: 400-800 parts of cementitious material, 200-400 parts of water, 15-150 parts of wear-resistant additive, 0-30 parts of water-reducing agent, and 0-20 parts of surface modifier; wherein the wear-resistant additive is selected from ultra-high molecular weight polyethylene powder.

[0009] Ultra-high molecular weight polyethylene (UHMWPE) reinforcement of silicate cement in the form of fibers mainly improves mechanical properties (such as flexural strength). Compared with UHMWPE fibers, this invention uses UHMWPE powder, which can effectively improve the wear resistance and impermeability of the material while maintaining good mechanical properties.

[0010] Preferably, in the raw materials for preparing the wear-resistant and impermeable cementitious material, the mass fractions of the water-reducing agent and the surface modifier are not both 0.

[0011] Preferably, the surface modifier in the raw materials for preparing the wear-resistant and impermeable cementitious material is 1 to 20 parts by mass; more preferably 1.5 to 15 parts; and even more preferably 2 to 10 parts.

[0012] Preferably, the wear-resistant and impermeable cementitious material is prepared from the following raw materials in parts by weight: 400-800 parts of cementitious material, 200-400 parts of water, 15-150 parts of wear-resistant additive, 0-30 parts of water-reducing agent, and 1-20 parts of surface modifier.

[0013] Preferably, the water-reducing agent in the raw materials for preparing the wear-resistant and impermeable cement-based material is 1 to 30 parts by mass; more preferably 3 to 25 parts; and even more preferably 5 to 15 parts.

[0014] Preferably, the wear-resistant and impermeable cementitious material is prepared from the following raw materials in parts by weight: 400-800 parts of cementitious material, 200-400 parts of water, 15-150 parts of wear-resistant additive, 1-30 parts of water-reducing agent, and 0-20 parts of surface modifier.

[0015] More preferably, the wear-resistant and impermeable cementitious material is prepared from the following raw materials in parts by weight: 400-800 parts of cementitious material, 200-400 parts of water, 15-150 parts of wear-resistant additive, 1-30 parts of water-reducing agent, and 1-20 parts of surface modifier.

[0016] Preferably, the mass fraction of the cementitious material in the raw materials for preparing the wear-resistant and impermeable cementitious material is 450-750 parts; more preferably 500-700 parts; and even more preferably 550-650 parts.

[0017] Preferably, the water content in the raw materials for preparing the wear-resistant and impermeable cementitious material is 220-380 parts by mass; more preferably 240-360 parts; and even more preferably 260-340 parts.

[0018] Preferably, the wear-resistant additive in the raw materials for preparing the wear-resistant and impermeable cementitious material is 20-120 parts by mass; more preferably 25-100 parts; and even more preferably 25-80 parts.

[0019] Preferably, the wear-resistant and impermeable cementitious material is prepared from the following raw materials in parts by weight: 450-750 parts of cementitious material, 220-380 parts of water, 20-120 parts of wear-resistant additive, 1-30 parts of water-reducing agent, and 1-20 parts of surface modifier.

[0020] More preferably, the wear-resistant and impermeable cementitious material is prepared from the following raw materials in parts by weight: 500-700 parts cementitious material, 240-360 parts water, 25-100 parts wear-resistant additive, 3-25 parts water-reducing agent, and 1.5-15 parts surface modifier.

[0021] More preferably, the wear-resistant and impermeable cementitious material is prepared from the following raw materials in parts by weight: 550-650 parts cementitious material, 260-340 parts water, 25-80 parts wear-resistant additive, 5-15 parts water-reducing agent, and 2-10 parts surface modifier.

[0022] Preferably, in the raw materials for preparing the wear-resistant and impermeable cementitious material, the wear-resistant additive accounts for 3% to 25% of the mass fraction of the cementitious material; more preferably, 3.5% to 20%; and even more preferably, 4% to 12%.

[0023] In some specific embodiments, the wear-resistant additive accounts for 3%, 3.5%, 4%, 4.5%, 5%, 5.5%, 6%, 6.5%, 7%, 7.5%, 8%, 8.5%, 9%, 9.5%, 10%, 12%, 14%, 16%, 18%, 20%, 22%, and 25% of the mass of the cementitious material.

[0024] Preferably, in the raw materials for preparing the wear-resistant and impermeable cementitious material, the water-reducing agent accounts for 0% to 3% of the mass fraction of the cementitious material; more preferably, 0.4% to 2%; and even more preferably, 0.8% to 1.5%.

[0025] Preferably, in the raw materials for preparing the wear-resistant and impermeable cementitious material, the surface modifier accounts for 0% to 2% of the mass fraction of the cementitious material; more preferably, 0.2% to 1.5%; and even more preferably, 0.4% to 1%.

[0026] Preferably, in the raw materials for preparing the wear-resistant and impermeable cementitious material, the weight-average molecular weight of the ultra-high molecular weight polyethylene powder is 1.5 million to 3 million; more preferably 1.8 million to 2.8 million; and even more preferably 2 million to 2.5 million.

[0027] Preferably, the average particle size of the ultra-high molecular weight polyethylene powder in the raw materials for preparing the wear-resistant and impermeable cement-based material is 10μm to 50μm; more preferably 15μm to 45μm; and even more preferably 20μm to 40μm.

[0028] Preferably, in the raw materials for preparing the wear-resistant and impermeable cementitious material, the surface modifier is selected from silane coupling agents; more preferably, the silane coupling agent includes at least one of γ-glycidoxypropyltriethoxysilane (A-187), β-(3,4-epoxycyclohexyl)-ethyltrimethoxysilane (A-186), γ-aminopropyltriethoxysilane (A-1100), or γ-methacryloyloxypropyltrimethoxysilane (A-174); even more preferably, the silane coupling agent includes A-187, A-186, or a combination thereof.

[0029] Preferably, the cementitious material in the preparation of the wear-resistant and impermeable cementitious material is selected from ordinary Portland cement; more preferably, the Portland cement includes at least one of Portland cement with a strength grade of 42.5, 52.5 or 62.5; even more preferably, the Portland cement is selected from Portland cement with a strength grade of 52.5.

[0030] Preferably, the water-reducing agent in the raw materials for preparing the wear-resistant and impermeable cementitious material includes at least one of lignin sulfonate, naphthalene sulfonate formaldehyde polymer, or polycarboxylate water-reducing agent; more preferably, the water-reducing agent is selected from polycarboxylate water-reducing agents.

[0031] Preferably, the water-cement ratio of the raw materials for preparing the wear-resistant and impermeable cementitious material is 0.3–0.7; more preferably 0.4–0.6; and even more preferably 0.45–0.55. The water-cement ratio refers to the mass ratio of water to cementitious material per cubic meter of cementitious material.

[0032] Preferably, the 7-day compressive strength of the wear-resistant and impermeable cementitious material is 30-65 MPa; more preferably, it is 35-62 MPa; and even more preferably, it is 45-60 MPa.

[0033] Preferably, the 28-day compressive strength of the wear-resistant and impermeable cementitious material is 40–95 MPa; more preferably 50–92 MPa; and even more preferably 60–90 MPa.

[0034] Preferably, the 7-day flexural strength of the wear-resistant and impermeable cementitious material is 5–14 MPa; more preferably 6–13 MPa; and even more preferably 7–12 MPa.

[0035] Preferably, the 28-day flexural strength of the wear-resistant and impermeable cementitious material is 8–16 MPa; more preferably 9–15 MPa; and even more preferably 10–14 MPa.

[0036] Preferably, the 7-day water absorption rate of the wear-resistant and impermeable cementitious material is 1-7 kg / m³. 2A further preferred value is 1.5–6.5 kg / m³. 2 A further preferred value is 2-6 kg / m³. 2 .

[0037] Preferably, the capillary absorption coefficient of the wear-resistant and impermeable cementitious material is 0.1 to 1 kg / (m²). 2 ×h 0.5 Further preferred is 0.2–0.8 kg / (m³). 2 ×h 0.5 More preferably, it is 0.2–0.7 kg / (m³). 2 ×h 0.5 ).

[0038] Preferably, the wear-resistant and impermeable cementitious material has a wear rate of 0.02-0.3% after 3000 cycles; more preferably, it has a wear rate of 0.025-0.1%; and even more preferably, it has a wear rate of 0.03-0.05%.

[0039] The second aspect of the present invention provides a method for preparing the wear-resistant and impermeable cementitious material described in the first aspect of the present invention, comprising the following steps: mixing a cementitious material and a wear-resistant additive to obtain a dry powder, then preparing other raw materials into an aqueous solution, and mixing the dry powder and the aqueous solution to obtain the wear-resistant and impermeable cementitious material.

[0040] In the preparation method, when the raw materials for preparing the wear-resistant and impermeable cementitious material include a surface modifier, the aqueous agent includes water and a surface modifier; when the raw materials for preparing the wear-resistant and impermeable cementitious material include a surface modifier and a water-reducing agent, the aqueous agent includes water, a surface modifier, and a water-reducing agent.

[0041] Preferably, in the preparation method, the mixing of the cementitious material and the wear-resistant additive is selected from stirring.

[0042] Preferably, the stirring speed for mixing the cementitious material and the wear-resistant additive is 40-80 rpm; more preferably 45-75 rpm; and even more preferably 50-70 rpm.

[0043] Preferably, the stirring time for mixing the cementitious material and the wear-resistant additive is 1 to 5 minutes; more preferably 1 to 4 minutes; and even more preferably 1 to 3 minutes.

[0044] Preferably, the method of mixing the dry powder and the aqueous solution is selected from stirring.

[0045] Preferably, the mixing of dry powder and water is divided into a first stage and a second stage.

[0046] Preferably, the stirring speed in the first stage is 20-60 rpm; more preferably 25-55 rpm; and even more preferably 30-50 rpm.

[0047] Preferably, the stirring time in the first stage is 5-60 s; more preferably 10-50 s; and even more preferably 20-40 s.

[0048] Preferably, the stirring speed in the second stage is 120-160 rpm; more preferably 125-155 rpm; and even more preferably 130-150 rpm.

[0049] Preferably, the stirring time in the second stage is 1 to 8 minutes; more preferably 2 to 6 minutes; and even more preferably 3 to 5 minutes.

[0050] Preferably, in the preparation method, the dry powder and the aqueous agent are mixed and then cast into shape; more preferably, curing is performed after casting.

[0051] In some embodiments, the maintenance is wet maintenance; preferably, the maintenance time of the wet maintenance is 18 to 54 hours; more preferably, it is 24 to 48 hours.

[0052] In other embodiments, the maintenance is standard maintenance; preferably, the standard maintenance period is 20 to 35 days; more preferably, it is 25 to 30 days.

[0053] A third aspect of the present invention provides an application of the wear-resistant and impermeable cementitious material described in the first aspect of the present invention in the field of construction.

[0054] Preferably, the building sector is selected from the infrastructure sector; more preferably, the infrastructure sector includes at least one of the sectors of road surface, bridge deck, airport runway, or parking lot.

[0055] The beneficial effects of this invention are:

[0056] The wear-resistant additive of this invention, ultra-high molecular weight polyethylene, has excellent wear resistance and extremely low water absorption. By using it to modify cementitious materials, the permeability of cement-based materials can be significantly reduced. The resulting cement-based materials have low water absorption and capillary absorption coefficient, dense pore structure and good hydrophobicity, excellent impermeability and durability, and can effectively improve the service life of cement-based materials and reduce the maintenance and upkeep costs of large-scale infrastructure projects in the later stages.

[0057] Specifically, compared with the prior art, the present invention has the following advantages:

[0058] 1. Cement-based materials made using the wear-resistant additive ultra-high molecular weight polyethylene of this invention exhibit excellent impermeability and durability, effectively extending their service life. Furthermore, cement-based materials made using this wear-resistant additive possess good compressive and flexural strength. By adjusting the proportion of the wear-resistant additive, the overall performance of the cement-based material can be effectively adjusted, significantly increasing flexural strength by 20-50% while maintaining compressive strength, thus enhancing the toughness of the cement-based material.

[0059] 2. Furthermore, the surface modifier of this invention is a liquid and needs to be prepared into an aqueous solution with water to achieve uniform dissolution. After the surface modifier is uniformly dissolved in water to form an aqueous solution, the dry powder and the aqueous solution are mixed. The surface modifier forms bonds at the interface between polyethylene and cementitious materials through hydrolysis, promoting their compatibility. This invention modifies the hydrophobic ultra-high molecular weight polyethylene by adding a surface modifier, enhancing its compatibility with other raw materials used in the preparation of cement-based materials. Therefore, this invention can fully utilize the synergistic effect of ultra-high molecular weight polyethylene and the surface modifier, resulting in a cement-based material with a denser pore structure. The surface modifier, together with ultra-high molecular weight polyethylene with excellent wear resistance, improves the wear resistance of the material. In particular, using a silane coupling agent as a surface modifier results in better surface modification of ultra-high molecular weight polyethylene. In addition, due to the dense pore structure and the extremely low water absorption rate of ultra-high molecular weight polyethylene, the material also possesses good impermeability.

[0060] 3. The wear-resistant additives used in this invention are bulk chemical products with controllable costs, which is conducive to the large-scale preparation of the products. Moreover, the preparation method of the cement-based material in this invention adopts a two-step mixing method of first dry powder mixing and then wet mixing. The preparation method is simple and greatly improves the wear resistance and impermeability of the cement-based material without reducing its strength. It can be widely promoted and used in infrastructure fields such as roads, bridge decks, airport runways and parking lots. Attached Figure Description

[0061] Figure 1 The water absorption rate-time curves are for the cement-based materials of Examples 1-4 and Comparative Example 1.

[0062] Figure 2 The capillary absorption coefficient curves are for the cement-based materials of Examples 1-4 and Comparative Example 1.

[0063] Figure 3 Bar charts showing the 7-day and 28-day compressive strength of the cement-based materials in Examples 1-4 and Comparative Example 1.

[0064] Figure 4 Bar charts showing the 7-day and 28-day flexural strength of the cement-based materials in Examples 1-4 and Comparative Example 1.

[0065] Figure 5 The graphs show the cyclic wear loss curves of the cement-based materials in Examples 1-4 and Comparative Example 1.

[0066] Figure 6 The diagram shows the hydrophilic and hydrophobic states of the cement-based materials in Examples 1-4 and Comparative Example 1. Detailed Implementation

[0067] The following specific embodiments further illustrate the content of the present invention in detail. It should also be understood that the following embodiments are only for further explanation of the present invention and should not be construed as limiting the scope of protection of the present invention. Non-essential improvements and adjustments made by those skilled in the art based on the principles described herein are all within the scope of protection of the present invention. The specific process parameters, etc., in the following examples are merely examples within a suitable range; that is, those skilled in the art can make selections within a suitable range based on the description herein, and are not intended to be limited to the specific data in the examples below. Unless otherwise specified, the raw materials, reagents, or apparatus used in the following embodiments and comparative examples can be obtained from conventional commercial sources or by existing known methods.

[0068] Examples 1-4 and Comparative Example 1

[0069] The raw material formulations for preparing the cement-based materials in Examples 1-4 and Comparative Example 1 are shown in Table 1.

[0070] Table 1. Raw material proportions for the preparation of cement-based materials in Examples 1-4 and Comparative Example 1.

[0071] cementitious materials / g Water-to-glue ratio Wear-resistant additives / g Water-reducing agent / g Surface modifier / g Example 1 (UH-5) 600 0.5 30 6 3.6 Example 2 (UH-10) 600 0.5 60 6 3.6 Example 3 (UH-15) 600 0.5 90 6 3.6 Example 4 (UH-20) 600 0.5 120 6 3.6 Comparative Example 1 (RF) 600 0.5 0 0 0

[0072] In Examples 1-4 and Comparative Example 1, the cementitious material was selected from silicate cement with a strength grade of 52.2, the wear-resistant additive was selected from ultra-high molecular weight polyethylene powder, the ultra-high molecular weight polyethylene had a weight average molecular weight of 1.5 million to 3 million, the powder particle size was 30 μm, the water-reducing agent was selected from polycarboxylate water-reducing agent, the surface modifier was selected from silane coupling agent, and the water-cement ratio refers to the mass ratio of water to cementitious material, that is, the water consumption in the examples and comparative examples was 300g.

[0073] The cement-based materials in Examples 1-4 were prepared using the following method:

[0074] 1) Use a cement mortar mixer for mixing: A two-step mixing method is adopted. In the first step, the wear-resistant additive and cementitious material are mixed as dry powder at a speed of 60 rpm for 2 minutes to obtain a uniformly mixed dry powder. In the second step, the water-reducing agent and surface modifier are added to water to prepare an aqueous solution. The aqueous solution is then gradually added to the uniformly mixed dry powder obtained in the first step. The mixture is first stirred at a speed of 40 rpm for 30 seconds, and then stirred at a speed of 140 rpm for 3-5 minutes to obtain a uniformly mixed slurry.

[0075] 2) Pour the well-mixed slurry into a mold and cure it under wet curing conditions for 24h to 48h, or under standard curing conditions for 28 days to obtain cement-based material.

[0076] Comparative Example 1: The cement-based material was prepared using the following method:

[0077] The preparation method is basically the same as that of Examples 1 to 4. The difference is that Comparative Example 1 does not add wear-resistant additives, water-reducing agents and surface modifiers. Therefore, the preparation process does not require a two-step mixing method. It only requires mixing the cementitious material and water in the design ratio once, and then pouring the well-stirred slurry into shape. After standard curing for 28 days, cement-based material is obtained.

[0078] The relevant properties of the cement-based materials tested in Examples 1-4 and Comparative Example 1 are recorded in Table 2. The standards for compressive strength and flexural strength testing are GB / T 50081-2019; water absorption testing standard is DB32 / T 3696-2019; and abrasion testing standard is GB 9867-2008.

[0079] Table 2 shows the relevant properties of the cement-based materials in Examples 1-4 and Comparative Example 1.

[0080]

[0081] from Figure 1 , Figure 2 As shown in Table 2, the cement-based materials prepared according to the method of the present invention all have low water absorption rates and capillary absorption coefficients. In particular, compared with Comparative Example 1, the 7-day water absorption rate of Example 1 is reduced from 8.29 kg / m³. 2 Reduced to 2.24 kg / m 2 The capillary absorption coefficient also increased from 1.22 kg / (m³) 2 ×h 0.5 Reduced to 0.29 kg / (m 2 ×h 0.5 Therefore, the cement-based material in this invention has a denser pore structure and a certain degree of hydrophobicity, which is beneficial to the cement-based material's resistance to chloride and sulfate ion corrosion during long-term service, thereby significantly improving its durability.

[0082] from Figure 3 , Figure 4 As shown in Table 2, in Examples 1-4, the compressive strength and flexural strength of the cement-based materials all decreased with the addition of wear-resistant additives. The experimental results demonstrate that wear-resistant additives play a crucial role in achieving the superior performance of cement-based materials. Adding a certain amount of wear-resistant additive can increase the flexural strength of cement-based materials by 20-50% without reducing their compressive strength. This significantly improves the fracture toughness of concrete, reduces cracking and damage, and effectively lowers the maintenance and upkeep costs of large-scale infrastructure projects in the later stages.

[0083] from Figure 5 As shown in Table 2, compared with Comparative Example 1, the wear loss after 3000 cycles in Example 1 decreased from 0.063% to 0.035%, indicating that the cement-based material in this invention has excellent wear resistance. However, the wear loss after 3000 cycles in Examples 3 and 4 increased to 0.35% and 0.28%, respectively, indicating that further increasing the amount of wear-resistant additives will lead to a slight decrease in material strength and affect its wear resistance.

[0084] from Figure 6 It can be seen that the contact angle of the material in Comparative Example 1 is 0°, which is a superhydrophilic material. In Examples 1 to 4, as the amount of wear-resistant additives added increases, the contact angle first increases and then decreases, increasing from 25.1° to 74.8° and then decreasing to 0°. This shows that after adding wear-resistant additives, the cement-based material of the present invention has a certain degree of hydrophobicity, which is beneficial to improving the durability of the material.

[0085] Furthermore, this invention modifies the hydrophobic ultra-high molecular weight polyethylene (UHMWPE) by adding a surface modifier, enhancing its compatibility with other raw materials used in the preparation of cement-based materials. Therefore, this invention fully leverages the synergistic effect of UHMWPE and the surface modifier, resulting in a cement-based material with a denser pore structure. The surface modifier, together with the UHMWPE possessing excellent wear resistance, improves the material's wear resistance. In experiments, without the addition of water-reducing agents and surface modifiers, the wear-resistant additives and gel materials exhibit significant delamination, making molding difficult.

[0086] In summary, the cement-based material of this invention has a dense pore structure and good hydrophobic properties, excellent impermeability and durability. Preferably, this invention can also improve the flexural strength of the cement-based material without reducing its compressive strength, and also has excellent wear resistance, thereby significantly improving the durability of concrete materials, effectively reducing the maintenance and upkeep costs of large-scale infrastructure projects in the later stages, and can be widely promoted and used in infrastructure fields such as roads, bridge decks, airport runways and parking lots.

Claims

1. A wear-resistant and impermeable cement-based material, characterized in that, It is prepared from the following raw materials in parts by weight: 400-800 parts cementitious material, 200-400 parts water, 15-150 parts wear-resistant additive, 1-30 parts water-reducing agent, and 1-20 parts surface modifier; wherein the wear-resistant additive is selected from ultra-high molecular weight polyethylene powder; the weight-average molecular weight of the ultra-high molecular weight polyethylene powder is 1.5 million to 3 million; the average particle size of the ultra-high molecular weight polyethylene powder is 10 μm to 50 μm; the wear-resistant additive accounts for 4% to 12% of the mass fraction of the cementitious material; the surface modifier is selected from silane coupling agents; and the water-reducing agent includes at least one of lignin sulfonate, naphthalene sulfonate formaldehyde polymer, or polycarboxylate-type water-reducing agent.

2. The wear-resistant and impermeable cementitious material according to claim 1, characterized in that, The silane coupling agent includes at least one of γ-glycidoxypropyltriethoxysilane, β-(3,4-epoxycyclohexyl)-ethyltrimethoxysilane, γ-aminopropyltriethoxysilane, or γ-methacryloyloxypropyltrimethoxysilane.

3. The wear-resistant and impermeable cementitious material according to claim 1, characterized in that, The cementing material is selected from ordinary Portland cement.

4. The wear-resistant and impermeable cementitious material according to claim 1, characterized in that, The water-to-binder ratio is 0.3 to 0.

7.

5. The method for preparing the wear-resistant and impermeable cementitious material according to any one of claims 1 to 4, characterized in that, The process includes the following steps: mixing cementitious materials and wear-resistant additives to obtain a dry powder, then mixing other raw materials to prepare an aqueous solution, and finally mixing the dry powder and the aqueous solution to obtain the wear-resistant and impermeable cementitious material.

6. The application of the wear-resistant and impermeable cementitious material according to any one of claims 1 to 4 in the construction field.

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