A quick-drying, wear-resistant and crack-resistant pouring material that does not require drying and its construction method

Abstract

The present invention belongs to the technical field of building materials, and particularly relates to a quick-drying, wear-resistant and anti-burst casting material that does not require drying and its construction method. By modifying the main component quartz sand of the casting material and using titanium dioxide-modified bauxite, cement composite material and epoxy resin in combination, the present invention effectively reduces the dry shrinkage value of the casting material, increases the compressive strength, and improves the anti-seepage pressure at the same time.

Description

Technical Field

[0001] The present invention belongs to the technical field of building materials, and particularly relates to a quick-drying, wear-resistant casting material that is air-drying-free and anti-explosion, and a construction method thereof. Background Art

[0002] Casting material is a granular and powdery material made of refractory substances, and is jointly composed of a certain amount of binder and moisture; casting material has high fluidity, is suitable for construction by casting method, and is an amorphous refractory material that can be hardened without heating; casting material is mainly composed of refractory aggregate, powder, binder, admixture, water or other liquid materials, and is generally cast and formed at the construction site by casting, vibrating or ramming methods, and can also be made into prefabricated parts for use.

[0003] Chinese Patent (Publication No. CN118684476A) discloses a casting material and its preparation method, and an assembled casting large wall and its preparation method. After grouping and reorganizing the raw materials, the raw materials treated by small molecules are subjected to high and low temperature treatment, and then reorganized with raw materials with strong chemical reaction ability, realizing high adsorption of the raw materials; special additives can produce mutual adsorption performance, which can greatly improve the strength of the raw materials; at the same time, the materials with strong chemical reaction ability are reorganized with ductile materials and wrapping materials, endowing the raw materials with good flexibility, elasticity, memory and self-healing properties; in addition, the raw materials are compounded through multiple reorganizations, and the obtained casting material has high strength, strong toughness, good ductility, and has the functions of high heat preservation, high fire prevention and high corrosion resistance, and has excellent comprehensive performance. However, this patent does not solve the problems existing in the casting materials in the prior art, such as large dry shrinkage value, low compressive strength, and insufficient impermeability pressure, which seriously affect its actual use.

[0004] Therefore, there is an urgent need for a quick-drying, wear-resistant casting material that is air-drying-free and anti-explosion, and a construction method thereof. By modifying the composition of the casting material and selecting appropriate functional components, the dry shrinkage value is reduced, the compressive strength is increased, and the impermeability pressure is improved. Summary of the Invention

[0005] The purpose of the present invention is to provide a quick-drying, wear-resistant casting material that is air-drying-free and anti-explosion, and a construction method thereof. By modifying the main component quartz sand of the casting material and cooperating with the common use of titanium dioxide-modified bauxite, cement composite material and epoxy resin, the dry shrinkage value of the casting material is effectively reduced, the compressive strength is increased, and the impermeability pressure is improved at the same time.

[0006] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0007] In the first aspect of the present invention, a quick-drying, wear-resistant casting material that is air-drying-free and anti-explosion is provided. The casting material is made of the following raw materials in parts by weight:

[0008] 40 - 50 parts of modified quartz sand, 20 - 30 parts of bauxite, 12 - 16 parts of gypsum, 10 - 14 parts of cement, 8 - 12 parts of epoxy resin, 2 - 4 parts of water reducer and 1 - 3 parts of defoamer;

[0009] The preparation method of the modified quartz sand includes: by weight, adding 10 - 20 parts of ferric nitrate into 90 - 100 parts of deionized water and dissolving it fully, then adding 40 - 50 parts of quartz sand and adjusting the pH to 9.2 - 9.6, stirring at a speed of 100 - 200 r / min for 4 - 6 h, and after the stirring is completed, transferring it to an oven and heating it at 106 - 110 °C for 8 - 10 h to obtain the modified quartz sand.

[0010] The modified quartz sand introduces iron oxide, and through the iron oxide, the pore structure of the casting material matrix can be changed, making the pore distribution in the material more reasonable, which is beneficial to reducing the resistance on the water migration path and reducing the shrinkage stress generated during the drying process, thereby reducing the drying shrinkage value.

[0011] As a preferred scheme, the bauxite is titanium dioxide - modified bauxite; the preparation method of the titanium dioxide - modified bauxite includes: by weight, mixing 30 - 40 parts of bauxite, 12 - 20 parts of titanium dioxide, 6 - 10 parts of methyltrioctylammonium chloride, 2 - 6 parts of 2 - methyl - 2,4 - pentanediol and 2 - 4 parts of polyethylene glycol evenly, and then ball - milling and dispersing for 24 - 30 h to obtain a mixed slurry; subjecting the mixed slurry to heat treatment, cooling to room temperature after the heat treatment is completed, and then pulverizing and grinding to obtain the titanium dioxide - modified bauxite.

[0012] As a preferred scheme, the conditions of the heat treatment include: the heat treatment temperature is 760 - 800 °C, and the heat treatment time is 10 - 12 h.

[0013] Due to the small particle size of titanium dioxide particles, the titanium dioxide - modified bauxite can act as a micro - filler in the casting material, filling the tiny voids between the cement matrix and the aggregate, forming a denser structure, reducing the generation and development of micro - cracks, and thus enhancing the overall compressive strength.

[0014] As a preferred scheme, the cement is a cement composite material; the preparation method of the cement composite material includes: by weight, adding 2 - 4 parts of polyvinylpyrrolidone into 100 - 110 parts of deionized water and stirring evenly, then adding 4 - 8 parts of carboxylated graphene and ultrasonically dispersing for 50 - 60 min to obtain a graphene suspension; mixing and stirring 100 - 110 parts of the graphene suspension and 130 - 140 parts of sulfoaluminate cement for 6 - 8 min, drying, and pulverizing to obtain the cement composite material.

[0015] As a preferred embodiment, the method for preparing carboxylated graphene includes: by weight, adding 2 to 6 parts of graphene oxide into 400 to 500 parts of deionized water, ultrasonically dispersing for 50 to 60 minutes, then adding 6 to 10 parts of sodium hydroxide and 16 to 20 parts of azobisisobutyronitrile and ultrasonically dispersing for 30 to 40 minutes, reacting at 30 to 34 °C for 4 to 6 hours, washing with water, and drying to obtain carboxylated graphene.

[0016] As a preferred embodiment, the particle size of the sulfoaluminate cement is 20 to 200 μm.

[0017] The cement composite material is modified by introducing carboxylated graphene. Through the carboxyl functional group, chemical reactions can occur with calcium ions in the hydration products of the casting material, forming stable chemical bonds, enhancing the interfacial bonding force between the cement and the matrix, and also promoting the formation of a denser microstructure, thereby reducing the penetration paths of moisture and other harmful substances and effectively preventing them from entering the interior of the material, and improving the anti-seepage pressure of the material.

[0018] As a preferred embodiment, the epoxy resin is bisphenol A epoxy resin and phenol novolac epoxy resin; the mass ratio of the bisphenol A epoxy resin to the phenol novolac epoxy resin is (1 to 2):1.

[0019] By using bisphenol A epoxy resin and phenol novolac epoxy resin in combination and controlling their mass ratio, a good compounding effect is achieved, acting as the binder of the modified component, effectively reducing the dry shrinkage value of the casting material, increasing the compressive strength, and at the same time enhancing the anti-seepage pressure.

[0020] As a preferred embodiment, the water reducing agent is selected from any one or a combination of at least two of polycarboxylate water reducing agent, melamine water reducing agent, and naphthalene water reducing agent.

[0021] As a preferred embodiment, the defoaming agent is selected from any one or a combination of at least two of tributyl phosphate, polydimethylsiloxane, and triglycerol monostearate.

[0022] The second aspect of the present invention provides a construction method for a quick-drying, wear-resistant, and anti-burst casting material without drying. Mix the quick-drying, wear-resistant, and anti-burst casting material without drying as described in the first aspect with water, stir well, then spread it on the construction surface and compact, grind, and polish.

[0023] Compared with the prior art, the advantages and beneficial effects of the present invention are:

[0024] 1. The present invention introduces epoxy resin into the casting material. The epoxy groups of the epoxy resin can react with the carboxyl groups in the cement composite material. Meanwhile, through the compounding of bisphenol A epoxy resin and phenol novolac epoxy resin, it effectively acts as a binder for modified quartz sand and titanium dioxide-modified bauxite, thereby constructing a network interconnected structure, effectively restricting the drying shrinkage of the casting material, increasing the compressive strength, and improving the impermeability pressure.

[0025] 2. The modified quartz sand of the present invention introduces iron oxide. Through the iron oxide, the pore structure of the casting material matrix can be changed, making the pore distribution in the material more reasonable, which is beneficial to reducing the resistance on the water migration path and reducing the shrinkage stress generated during the drying process, thereby reducing the drying shrinkage value.

[0026] 3. Due to the small particle size of the titanium dioxide particles, the titanium dioxide-modified bauxite of the present invention can act as a micro filler in the casting material, filling the tiny voids between the cement matrix and the aggregate, forming a denser structure, reducing the generation and development of microcracks, and thus enhancing the overall compressive strength.

[0027] 4. The cement composite material of the present invention introduces carboxylated graphene through modification. Through the carboxyl functional group, it can chemically react with calcium ions in the hydration products of the casting material to form stable chemical bonds, enhancing the interfacial bonding force between the cement and the matrix, and also promoting the formation of a denser microstructure, thereby reducing the penetration paths of water and other harmful substances and effectively preventing them from entering the interior of the material, improving the impermeability pressure of the material. Detailed implementation mode

[0028] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts belong to the scope of protection of the present invention.

[0029] The sources of some components in the examples and comparative examples are as follows:

[0030] Quartz sand, product number sjz139, purchased from Shijiazhuang Tourmaline Mineral Products Co., Ltd.

[0031] ]>Ferric nitrate, CAS number 7782-61-8, purchased from Sinopharm Chemical Reagent Co., Ltd.

[0032] Bauxite, model YY-75, purchased from Gongyi Yuying Refractory Materials Co., Ltd.

[0033] Gypsum, grade 20140, purchased from Weifang Shengchuan Chemical Co., Ltd.

[0034] Sulfoaluminate cement Ⅰ, with an average particle size of 20μm, was purchased from Sanxiang Special Cement Company;

[0035] Sulfoaluminate cement Ⅱ, with an average particle size of 4mm, was purchased from Hubei Yicheng Anda Special Cement Co., Ltd.;

[0036] Bisphenol A epoxy resin, product number XHL1920, was purchased from Hubei Xin Hongli Chemical Co., Ltd.;

[0037] Phenol novolac epoxy resin, model SQPN - 051, was purchased from Shandong Shengquan New Materials Co., Ltd.;

[0038] Polycarboxylate superplasticizer, model ZWL - A - Ⅸ, was purchased from Zhejiang Wulong Chemical Co., Ltd.;

[0039] Melamine superplasticizer, model VF - 8, was purchased from Shanghai Lujia Chemical Co., Ltd.;

[0040] Naphthalene series superplasticizer, model SNF - A, was purchased from Shenyang Xingzhenghe Chemical Co., Ltd.;

[0041] Tributyl phosphate, CAS number 126 - 73 - 8, was purchased from Sinopharm Chemical Reagent Co., Ltd.;

[0042] Polydimethylsiloxane, CAS number 9006 - 65 - 9, was purchased from Shanghai Macklin Biochemical Co., Ltd.;

[0043] Polyglycerol monostearate, CAS number 26855 - 43 - 6, was purchased from Shanghai Macklin Biochemical Co., Ltd.;

[0044] Titanium dioxide, CAS number 13463 - 67 - 7, was purchased from Shanghai Macklin Biochemical Co., Ltd.;

[0045] Methyltrioctylammonium chloride, CAS number 63393 - 96 - 4, was purchased from Sinopharm Chemical Reagent Co., Ltd.;

[0046] 2 - Methyl - 2,4 - pentanediol, CAS number 107 - 41 - 5, was purchased from Sinopharm Chemical Reagent Co., Ltd.;

[0047] Polyethylene glycol, product number P103725, was purchased from Shanghai Aladdin Biochemical Technology Co., Ltd.;

[0048] Graphene oxide, model DN - 20DY, was purchased from Zhejiang Zhitaina Micro - New Materials Co., Ltd.,

[0049] 2,2'-Azobis(2 - methylpropionitrile), CAS number 78 - 67 - 1, was purchased from Shanghai Aladdin Biochemical Technology Co., Ltd.;

[0050] Polyvinylpyrrolidone, product number S30267, was purchased from Shanghai Yuanye Bio-Technology Co., Ltd.

[0051] Example 1

[0052] This example provides a quick-drying, wear-resistant casting material that is air-drying-free and anti-explosion. The casting material is made from the following raw materials in parts by weight:

[0053] 50 parts of modified quartz sand, 30 parts of titanium dioxide-modified bauxite, 16 parts of gypsum, 14 parts of cement composite, 12 parts of epoxy resin (8 parts of bisphenol A epoxy resin and 4 parts of phenol phenolic epoxy resin), 2 - 4 parts of polycarboxylate water reducer, and 1 - 3 parts of defoaming agent tributyl phosphate;

[0054] The preparation of the modified quartz sand: In parts by weight, 20 parts of ferric nitrate are added to 100 parts of deionized water and dissolved thoroughly. Then 50 parts of quartz sand are added and the pH is adjusted to 9.6. Stir at a speed of 200 r / min for 4 h. After stirring, transfer to an oven and heat at 110 °C for 8 h to obtain the modified quartz sand;

[0055] The preparation of the titanium dioxide-modified bauxite: In parts by weight, 40 parts of bauxite, 20 parts of titanium dioxide, 10 parts of methyltrioctylammonium chloride, 6 parts of 2-methyl-2,4-pentanediol, and 4 parts of polyethylene glycol are mixed evenly and then ball-milled and dispersed for 30 h to obtain a mixed slurry; The mixed slurry is subjected to heat treatment (heat treatment temperature is 800 °C, heat treatment time is 10 h). After heat treatment, it is cooled to room temperature, pulverized, and ground to obtain the titanium dioxide-modified bauxite;

[0056] The preparation of the cement composite: (1) In parts by weight, 6 parts of graphene oxide are added to 500 parts of deionized water and ultrasonically dispersed for 60 min. Then 10 parts of sodium hydroxide and 20 parts of azobisisobutyronitrile are added and ultrasonically dispersed for 40 min. React at 34 °C for 4 h, wash with water, and dry to obtain carboxylated graphene. (2) In parts by weight, 4 parts of polyvinylpyrrolidone are added to 110 parts of deionized water and stirred evenly. Then 8 parts of carboxylated graphene are added and ultrasonically dispersed for 60 min to obtain a graphene suspension; 110 parts of the graphene suspension and 140 parts of sulfoaluminate cement I (average particle size is 20 μm) are mixed and stirred for 8 min, dried, and pulverized to obtain the cement composite.

[0057] Example 2

[0058] This example provides a quick-drying, wear-resistant casting material that is air-drying-free and anti-explosion. The casting material is made from the following raw materials in parts by weight:

[0059] 40 parts of modified quartz sand, 20 parts of titanium dioxide modified bauxite, 12 parts of gypsum, 10 parts of cement composite material, 8 parts of epoxy resin (4 parts of bisphenol A epoxy resin and 4 parts of phenol novolac epoxy resin), 2 parts of melamine water reducer and 1 part of defoaming agent polydimethylsiloxane;

[0060] Preparation of the modified quartz sand: 10 parts by weight of ferric nitrate were added to 90 parts of deionized water and fully dissolved, then 40 parts of quartz sand were added and the pH was adjusted to 9.2, and the mixture was stirred at a speed of 100 r / min for 6 hours. After the stirring was completed, the mixture was transferred to an oven and heated at 106° C. for 10 hours to obtain modified quartz sand;

[0061] Preparation of the titanium dioxide modified bauxite: 30 parts by weight of bauxite, 12 parts of titanium dioxide, 6 parts of methyltrioctylammonium chloride, 2 parts of 2-methyl-2,4-pentanediol, and 2 parts of polyethylene glycol are mixed uniformly and then ball-milled for 24 hours to obtain a mixed slurry; the mixed slurry is heat-treated (heat treatment temperature is 760° C., heat treatment time is 12 hours), cooled to room temperature after heat treatment, crushed, and ground to obtain titanium dioxide modified bauxite;

[0062] The preparation method of the cement composite material comprises the following steps: (1) adding 2 parts of graphene oxide to 400 parts of deionized water, ultrasonically dispersing the mixture for 50 minutes, then adding 6 parts of sodium hydroxide and 16 parts of azobisisobutyronitrile and ultrasonically dispersing the mixture for 30 minutes, reacting the mixture at 30°C for 6 hours, washing the mixture with water, and drying the mixture to obtain carboxylated graphene. (2) adding 2 parts of polyvinyl pyrrolidone to 100 parts of deionized water, stirring the mixture uniformly, then adding 4 parts of carboxylated graphene and ultrasonically dispersing the mixture for 50 minutes to obtain a graphene suspension; mixing 100 parts of the graphene suspension with 130 parts of sulfoaluminate cement I (average particle size of 20 μm) and stirring the mixture for 6 minutes, drying the mixture, and crushing the mixture to obtain a cement composite material.

[0063] Example 3

[0064] This embodiment provides a quick-drying, anti-cracking, wear-resistant casting material that does not require drying. The casting material is made of the following raw materials in parts by weight:

[0065] 45 parts of modified quartz sand, 25 parts of titanium dioxide modified bauxite, 14 parts of gypsum, 12 parts of cement composite material, 10 parts of epoxy resin (6 parts of bisphenol A epoxy resin and 4 parts of phenol novolac epoxy resin), 3 parts of naphthalene water reducer and 2 parts of defoaming agent triglycerol monostearate;

[0066] Preparation of the modified quartz sand: By weight, add 15 parts of iron nitrate to 95 parts of deionized water and dissolve it fully. Then add 45 parts of quartz sand and adjust the pH to 9.4. Stir at a speed of 150 r / min for 5 h. After stirring, transfer it to an oven and heat it at 108 °C for 9 h to obtain the modified quartz sand;

[0067] Preparation of the titanium dioxide-modified bauxite: By weight, mix 35 parts of bauxite, 16 parts of titanium dioxide, 8 parts of methyltrioctylammonium chloride, 4 parts of 2-methyl-2,4-pentanediol, and 3 parts of polyethylene glycol. After mixing evenly, ball-mill and disperse for 26 h to obtain a mixed slurry; Perform heat treatment on the mixed slurry (heat treatment temperature is 780 °C, heat treatment time is 11 h). After the heat treatment is completed, cool it to room temperature, crush it, and grind it to obtain the titanium dioxide-modified bauxite;

[0068] The preparation method of the cement composite material includes: (1) By weight, add 4 parts of graphene oxide to 450 parts of deionized water, ultrasonically disperse for 55 min, then add 8 parts of sodium hydroxide and 18 parts of azobisisobutyronitrile and ultrasonically disperse for 35 min. React at 32 °C for 5 h, wash with water, and dry to obtain carboxylated graphene. (2) By weight, add 3 parts of polyvinylpyrrolidone to 105 parts of deionized water and stir evenly. Then add 6 parts of carboxylated graphene and ultrasonically disperse for 56 min to obtain a graphene suspension; Mix and stir 105 parts of the graphene suspension and 135 parts of sulfoaluminate cement I (average particle size is 20 μm) for 7 min, dry, and crush to obtain the cement composite material.

[0069] Comparative Example 1

[0070] The difference between this comparative example and Example 1 is that commercially available quartz sand is used to replace the modified quartz sand.

[0071] Comparative Example 2

[0072] The difference between this comparative example and Example 1 is that commercially available bauxite is used to replace the titanium dioxide-modified bauxite.

[0073] Comparative Example 3

[0074] The difference between this comparative example and Example 1 is that sulfoaluminate cement I is used to replace the cement composite material.

[0075] Comparative Example 4

[0076] The difference between this comparative example and Example 1 is that sulfoaluminate cement II is used to replace sulfoaluminate cement I for the preparation of the cement composite material.

[0077] Comparative Example 5

[0078] The difference between this comparative example and Example 1 is that the dosage of bisphenol A epoxy resin is changed to 10 parts, and the dosage of phenol novolac epoxy resin is changed to 2 parts.

[0079] Comparative Example 6

[0080] The difference between this comparative example and Example 1 is that the dosage of bisphenol A epoxy resin is changed to 4 parts, and the dosage of phenol novolac epoxy resin is changed to 8 parts.

[0081] Performance Test

[0082] The casting materials of the above-mentioned examples and comparative examples were subjected to the following tests:

[0083] (1) Dry shrinkage test: The test was carried out in accordance with the requirements of "GB / T 29417-2012 Test Method for Dry Shrinkage and Cracking Performance of Cement Mortar and Concrete".

[0084] (2) Compressive strength test: The test was carried out in accordance with the requirements of "GB / T 50081-2019 Standard for Test Methods of Physical and Mechanical Properties of Concrete".

[0085] (3) Impermeability performance test: The test was carried out in accordance with the requirements of "GB 18445-2012 Cementitious Crystalline Waterproofing Materials".

[0086] Table 1 Performance Test Results

[0087]

[0088] From the above performance test results, it can be seen that the casting materials of Examples 1-3 have the best comprehensive performance, with a dry shrinkage value of 1.1~1.5 mm / m, a 28-day compressive strength of 36.5~37.2 MPa, and an impermeability pressure of 1.9~2.2 MPa; this is mainly because the main component quartz sand of the casting material is modified, and the combined use of titanium dioxide-modified bauxite, cement composite material and epoxy resin effectively reduces the dry shrinkage value of the casting material, increases the compressive strength, and improves the impermeability pressure at the same time.

[0089] In the comparative examples, since the necessary technical solutions were not adopted, their corresponding performance tests were significantly worse than those of the examples. Compared with Example 1, in Comparative Example 1, commercially available quartz sand was used to replace the modified quartz sand, resulting in a larger dry shrinkage value, a decrease in compressive strength, and a reduction in impermeability pressure. Compared with Example 1, in Comparative Example 2, commercially available bauxite was used to replace the titanium dioxide-modified bauxite, resulting in a larger dry shrinkage value, a decrease in compressive strength, and a reduction in impermeability pressure. Compared with Example 1, in Comparative Example 3, sulfoaluminate cement I was used to replace the cement composite material, resulting in a larger dry shrinkage value, a decrease in compressive strength, and a reduction in impermeability pressure. Compared with Example 1, in Comparative Example 4, sulfoaluminate cement II was used to replace sulfoaluminate cement I for the preparation of the cement composite material. Since the particle size of sulfoaluminate cement II was too large and the modification effect was poor, the dry shrinkage value increased, the compressive strength decreased, and the impermeability pressure decreased. Compared with Example 1, in Comparative Example 5, the dosage of bisphenol A epoxy resin was changed to 10 parts and the dosage of phenol novolac epoxy resin was changed to 2 parts. Since the dosage of bisphenol A epoxy resin was too much and the compounding effect was poor, the dry shrinkage value increased, the compressive strength decreased, and the impermeability pressure decreased. Compared with Example 1, in Comparative Example 6, the dosage of bisphenol A epoxy resin was changed to 4 parts and the dosage of phenol novolac epoxy resin was changed to 8 parts. Since the dosage of bisphenol A epoxy resin was too little and the compounding effect was poor, the dry shrinkage value increased, the compressive strength decreased, and the impermeability pressure decreased. The above experimental results further prove the importance of the technical solutions defined in the present invention for its technical effects.

[0090] The above are the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle described in the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A quick-drying, wear-resistant and anti-burst casting material that does not require drying, characterized in that, The casting material is made of the following raw materials in parts by weight: 40~50 parts of modified quartz sand, 20~30 parts of bauxite, 12~16 parts of gypsum, 10~14 parts of cement, 8~12 parts of epoxy resin, 2~4 parts of water reducer and 1~3 parts of defoamer; The preparation method of modified quartz sand includes: adding 10-20 parts of ferric nitrate to 90-100 parts of deionized water to fully dissolve, then adding 40-50 parts of quartz sand and adjusting the pH to 9.2-9.6, stirring at a speed of 100-200 r / min for 4-6 hours, and after the stirring is completed, transferring to an oven and heating at 106-110° C. for 8-10 hours to obtain the modified quartz sand; The bauxite is titanium dioxide-modified bauxite, and the preparation method comprises: uniformly mixing 30-40 parts of bauxite, 12-20 parts of titanium dioxide, 6-10 parts of methyltrioctylammonium chloride, 2-6 parts of 2-methyl-2,4-pentanediol and 2-4 parts of polyethylene glycol, and then ball-milling and dispersing them for 24-30 hours to obtain a mixed slurry; heat-treating the mixed slurry, cooling it to room temperature after the heat treatment, crushing it, and grinding it to obtain the bauxite; The cement is a cement composite material, and the preparation method comprises: adding 2-4 parts of polyvinyl pyrrolidone to 100-110 parts of deionized water and stirring uniformly, then adding 4-8 parts of carboxylated graphene and ultrasonically dispersing for 50-60 minutes to obtain a graphene suspension; mixing 100-110 parts of the graphene suspension and 130-140 parts of sulphoaluminate cement and stirring for 6-8 minutes, drying, and crushing to obtain the cement; The preparation method of carboxylated graphene comprises: adding 2 to 6 parts of graphene oxide to 400 to 500 parts of deionized water, ultrasonically dispersing for 50 to 60 minutes, then adding 6 to 10 parts of sodium hydroxide and 16 to 20 parts of azobisisobutyronitrile and ultrasonically dispersing for 30 to 40 minutes, reacting at 30 to 34° C. for 4 to 6 hours, washing with water, and drying to obtain the obtained product; The epoxy resin is a mixture of bisphenol A epoxy resin and phenol novolac epoxy resin in a mass ratio of (1~2):

1.

2. The quick-drying, wear-resistant and non-bursting casting material that does not require drying according to claim 1, characterized in that The heat treatment conditions include: a heat treatment temperature of 760-800° C. and a heat treatment time of 10-12 hours.

3. The quick-drying and wear-resistant pouring material that is air-drying-free and anti-burst according to claim 2, wherein, The particle size of the sulphoaluminate cement is 20-200 μm.

4. The quick-drying, wear-resistant and anti-burst casting material that does not require drying according to claim 3, characterized in that, The water reducer is selected from any one of polycarboxylate water reducer, melamine water reducer and naphthalene water reducer or a combination of at least two thereof.

5. A quick-drying, wear-resistant and anti-burst casting material that does not require drying, characterized in that, The defoaming agent is selected from any one of tributyl phosphate, polydimethylsiloxane, and triglycerol monostearate, or a combination of at least two thereof.

6. A construction method of a quick-drying, wear-resistant and crack-resistant casting material that does not require drying, characterized in that, The quick-drying wear-resistant casting material that does not require drying and is resistant to cracking according to any one of claims 1 to 5 is mixed with water, stirred thoroughly and evenly, and then spread on the construction surface and compacted, ground and polished.

Images