Stone-like PC brick and preparation method thereof

Abstract

The invention belongs to the technical field of preparation of building materials, and particularly relates to a stone-like PC brick and a preparation method thereof. The colored sand, the limestone powder, the white carbon black, the cement and the epoxy resin are added into the surface material, so that the strength and durability of the stone-like PC brick are improved, and the stone-like PC brick is resistant to corrosion of chemical substances; meanwhile, the cement, the gravel, the kaolin, the ethyl methyl cellulose and the silica fume are used for preparing the base material, the alkali efflorescence of the stone-like PC brick is improved, the layering sense is improved, and therefore the stone-like PC brick which is high in strength and free of alkali efflorescence can be prepared, and meanwhile the preparation method is easy and convenient to operate and can meet the use requirements of various scenes.

Description

Technical Field

[0001] The invention belongs to the technical field of preparing building materials, and particularly relates to a stone-like PC brick and a preparation method thereof. Background Art

[0002] Imitation stone PC bricks are a new type of building material. Their surface texture mainly imitates stone and has the advantages of being beautiful and natural. They have long been used in scenes such as urban road construction, home decoration, courtyard corridors and entrance corridors, and have a wide range of applications.

[0003] At present, the production methods of imitation stone PC bricks include dry process and wet process. Although both methods can produce imitation stone PC bricks, both methods have disadvantages. For example, in the process of extruding bricks in the wet process, the air in the pores cannot be discharged, so the strength is not high; while the dry production process produces slightly larger surface pores, which makes the product prone to alkali reversion. Therefore, how to produce imitation stone PC bricks with high strength and no efflorescence is an urgent problem to be solved in this field. Summary of the invention

[0004] The object of the present invention is to provide a stone-like PC brick and a preparation method thereof. The stone-like PC brick has high strength, is not efflorescent, and has a simple preparation method.

[0005] The present invention provides a stone-like PC brick, comprising a base material and a surface material, wherein the surface material comprises the following raw materials in parts by weight: 110-120 parts of colored sand, 10-15 parts of limestone powder, 8-10 parts of white carbon black, 20-30 parts of cement, 15-20 parts of epoxy resin and 5-10 parts of water;

[0006] The base material comprises the following raw materials in parts by weight: 70-80 parts of cement, 90-100 parts of crushed stone, 3-5 parts of kaolin, 2-3 parts of ethyl methyl cellulose, 5-8 parts of silica fume and 5-10 parts of water.

[0007] Preferably, the fabric comprises the following raw materials in parts by mass: 120 parts of colored sand, 15 parts of limestone powder, 8 parts of white carbon black, 30 parts of cement, 20 parts of epoxy resin and 10 parts of water.

[0008] Preferably, the base material comprises the following raw materials in parts by weight: 80 parts of cement, 100 parts of crushed stone, 5 parts of kaolin, 3 parts of ethyl methyl cellulose, 5 parts of silica fume and 10 parts of water.

[0009] The present invention provides a method for preparing the stone-like PC brick described in the above technical solution, comprising the following steps:

[0010] After the colored sand and epoxy resin are evenly mixed, limestone powder, white carbon black and cement are added to the mixture in sequence, and water is added and stirred evenly to obtain the fabric;

[0011] Mix cement, crushed stone, kaolin, ethyl methyl cellulose, silica fume and water evenly to obtain a base material;

[0012] The base material and the surface material are introduced into a mold in sequence, and then pressed and formed to obtain a stone-like PC brick.

[0013] Preferably, when the base material or the outer material is introduced into the mold, the mold is accompanied by vibration; after the base material or the outer material is completely introduced into the mold, the vibration stops.

[0014] Preferably, after the base material is completely introduced into the mold, the base material is subjected to a pressure treatment; the pressure treatment comprises: applying pressure to the base material and leaving it to stand in sequence;

[0015] The pressure when applying pressure is 5-10KN, and the time is 1-2s; the static time is 2-3s;

[0016] The pressure treatment is performed 2-3 times.

[0017] Preferably, the parameters of the pressurizing molding include: a pressure of 45-50KN.

[0018] Preferably, when adding water and stirring, the stirring speed is 1400-1500r / min.

[0019] Beneficial effects:

[0020] The present invention provides a stone-like PC brick, comprising a base material and a surface material, wherein the surface material comprises the following raw materials in mass fractions: 110-120 parts of colored sand, 10-15 parts of limestone powder, 8-10 parts of white carbon black, 20-30 parts of cement, 15-20 parts of epoxy resin and 5-10 parts of water; the base material comprises the following raw materials in mass fractions: 70-80 parts of cement, 90-100 parts of crushed stone, 3-5 parts of kaolin, 2-3 parts of ethyl methyl cellulose, 5-8 parts of silica fume and 5-10 parts of water. The present invention improves the strength and durability of the stone-like PC brick and resists the erosion of chemical substances by adding colored sand, limestone powder, white carbon black, cement and epoxy resin to the surface material; and the base material is prepared by using cement, crushed stone, kaolin, ethyl methyl cellulose and silica fume at the same time, which is conducive to improving the alkali of the stone-like PC brick and increasing the sense of hierarchy.

[0021] Based on the above technical advantages, the present invention also provides a method for preparing stone-like PC bricks. By mixing different raw materials evenly and then extruding them to form, stone-like PC bricks with high strength and no efflorescence can be obtained. At the same time, the above preparation method is easy to operate and can meet the use requirements of various scenarios. DETAILED DESCRIPTION

[0022] In the present invention, unless otherwise specified, the various equipment, materials and methods used are conventionally selected.

[0023] In order to further illustrate the present invention, the scheme provided by the present invention is described in detail below in conjunction with embodiments, but they should not be understood as limiting the protection scope of the present invention.

[0024] Example 1

[0025] A method for preparing a stone-like PC brick comprises the following steps:

[0026] (1) Imitation stone PC tiles, including base material and surface material, including:

[0027] The fabric includes the following raw materials by mass: 120 parts of colored sand, 15 parts of limestone powder, 8 parts of white carbon black, 30 parts of cement, 20 parts of epoxy resin and 10 parts of water;

[0028] The base material includes the following raw materials in parts by weight: 80 parts of cement, 100 parts of crushed stone, 5 parts of kaolin, 3 parts of ethyl methyl cellulose, 5 parts of silica fume and 10 parts of water.

[0029] (2) Preparation method:

[0030] After the colored sand and the epoxy resin are evenly mixed, a mixture is obtained;

[0031] Add limestone powder, white carbon black, cement and water to the mixture in sequence, and stir the above substances evenly at 1400 r / min to obtain a fabric;

[0032] Mix cement, crushed stone, kaolin, ethyl methyl cellulose, silica fume and water evenly to obtain a base material;

[0033] Under vibration conditions, the base material is injected into the mold, and the vibration is used to ensure that the base material evenly covers the mold. After the base material is injected, the vibration is stopped, and the base material is pressurized for 2 seconds under the condition of 5KN, and then allowed to stand for 2 seconds; after standing, the base material is pressurized for 2 seconds under the condition of 5KN again, and then allowed to stand for 2 seconds to obtain the base material after pressurization;

[0034] Under the condition of vibration, the fabric is injected into the mold. After the fabric injection is completed, the vibration is stopped, and then it is pressurized under the condition of 50KN, and then demolded to obtain imitation stone PC bricks.

[0035] Example 2

[0036] A method for preparing a stone-like PC brick comprises the following steps:

[0037] (1) Imitation stone PC tiles, including base material and surface material, including:

[0038] The fabric includes the following raw materials by mass: 120 parts of colored sand, 15 parts of limestone powder, 8 parts of white carbon black, 30 parts of cement, 20 parts of epoxy resin and 10 parts of water;

[0039] The base material includes the following raw materials in parts by weight: 70 parts of cement, 100 parts of crushed stone, 3 parts of kaolin, 2 parts of ethyl methyl cellulose, 5 parts of silica fume and 10 parts of water.

[0040] (2) Preparation method:

[0041] After the colored sand and the epoxy resin are evenly mixed, a mixture is obtained;

[0042] Add limestone powder, white carbon black, cement and water to the mixture in sequence, and stir the above substances evenly at 1450 r / min to obtain a fabric;

[0043] Mix cement, crushed stone, kaolin, ethyl methyl cellulose, silica fume and water evenly to obtain a base material;

[0044] Under vibration conditions, the base material is injected into the mold, and the vibration is used to ensure that the base material is evenly spread over the mold. After the base material is injected, the vibration is stopped, and the base material is pressurized for 2 seconds under the condition of 8KN, and then allowed to stand for 2 seconds; after standing, the base material is pressurized for 2 seconds under the condition of 8KN again, and then allowed to stand for 2 seconds to obtain the base material after pressurization;

[0045] Under the condition of vibration, the fabric is injected into the mold. After the fabric injection is completed, the vibration is stopped, and then it is pressurized under the condition of 50KN, and then demolded to obtain imitation stone PC bricks.

[0046] Example 3

[0047] A method for preparing a stone-like PC brick comprises the following steps:

[0048] (1) Imitation stone PC tiles, including base material and surface material, including:

[0049] The fabric includes the following raw materials by mass: 110 parts of colored sand, 15 parts of limestone powder, 10 parts of white carbon black, 30 parts of cement, 20 parts of epoxy resin and 10 parts of water;

[0050] The base material includes the following raw materials in parts by weight: 80 parts of cement, 100 parts of crushed stone, 5 parts of kaolin, 3 parts of ethyl methyl cellulose, 5 parts of silica fume and 10 parts of water.

[0051] (2) Preparation method:

[0052] After the colored sand and the epoxy resin are evenly mixed, a mixture is obtained;

[0053] Add limestone powder, white carbon black, cement and water to the mixture in sequence, and stir the above substances evenly at 1500 r / min to obtain a fabric;

[0054] Mix cement, crushed stone, kaolin, ethyl methyl cellulose, silica fume and water evenly to obtain a base material;

[0055] Under vibration conditions, the base material is injected into the mold, and the vibration is used to ensure that the base material is evenly spread over the mold. After the base material is injected, the vibration is stopped, and the base material is pressurized for 2 seconds under the condition of 5KN, and then allowed to stand for 2 seconds; after standing, the base material is pressurized for 2 seconds under the condition of 5KN, and then allowed to stand for 2 seconds; then, the base material is pressurized for 2 seconds under the condition of 5KN, and then allowed to stand for 2 seconds, to obtain the base material after pressurization;

[0056] Under the condition of vibration, the fabric is injected into the mold. After the fabric injection is completed, the vibration is stopped, and then it is pressurized under the condition of 50KN, and then demolded to obtain imitation stone PC bricks.

[0057] Comparative Example 1

[0058] A method for preparing a stone-like PC brick comprises the following steps:

[0059] (1) Imitation stone PC tiles, including base material and surface material, including:

[0060] The fabric includes the following raw materials by mass: 150 parts of colored sand, 15 parts of limestone powder, 8 parts of white carbon black, 30 parts of cement, 10 parts of epoxy resin and 10 parts of water;

[0061] The base material includes the following raw materials in parts by weight: 80 parts of cement, 70 parts of crushed stone, 5 parts of kaolin, 3 parts of ethyl methyl cellulose, 15 parts of silica fume and 10 parts of water.

[0062] (2) Preparation method:

[0063] After the colored sand and the epoxy resin are evenly mixed, a mixture is obtained;

[0064] Add limestone powder, white carbon black, cement and water to the mixture in sequence, and stir the above substances evenly at 1400 r / min to obtain a fabric;

[0065] Mix cement, crushed stone, kaolin, ethyl methyl cellulose, silica fume and water evenly to obtain a base material;

[0066] Under vibration conditions, the base material is injected into the mold, and the vibration is used to ensure that the base material is evenly spread over the mold. After the base material is injected, the vibration is stopped, and the base material is pressurized for 2 seconds under the condition of 5KN, and then allowed to stand for 2 seconds; after standing, the base material is pressurized for 2 seconds under the condition of 5KN again, and then allowed to stand for 2 seconds to obtain the base material after pressurization;

[0067] Under the condition of vibration, the fabric is injected into the mold. After the fabric injection is completed, the vibration is stopped, and then it is pressurized under the condition of 50KN, and then demolded to obtain imitation stone PC bricks.

[0068] Comparative Example 2

[0069] A method for preparing a stone-like PC brick comprises the following steps:

[0070] (1) Imitation stone PC tiles, including base material and surface material, including:

[0071] The fabric includes the following raw materials by mass: 120 parts of colored sand, 15 parts of quartz sand powder, 8 parts of white carbon black, 30 parts of cement, 20 parts of epoxy resin and 10 parts of water;

[0072] The base material includes the following raw materials in parts by weight: 80 parts of cement, 100 parts of crushed stone, 3 parts of ethyl methyl cellulose, 5 parts of silica fume and 10 parts of water.

[0073] (2) Preparation method:

[0074] After the colored sand and the epoxy resin are evenly mixed, a mixture is obtained;

[0075] Adding quartz sand powder, white carbon black, cement and water to the mixture in sequence, stirring the above substances evenly at 1400 r / min to obtain a fabric;

[0076] The cement, crushed stone, ethyl methyl cellulose, silica fume and water are uniformly mixed to obtain a base material;

[0077] Under vibration conditions, the base material is injected into the mold, and the vibration is used to ensure that the base material evenly covers the mold. After the base material is injected, the vibration is stopped, and the base material is pressurized for 2 seconds under the condition of 5KN, and then allowed to stand for 2 seconds; after standing, the base material is pressurized for 2 seconds under the condition of 5KN again, and then allowed to stand for 2 seconds to obtain the base material after pressurization;

[0078] Under the condition of vibration, the fabric is injected into the mold. After the fabric injection is completed, the vibration is stopped, and then it is pressurized under the condition of 50KN, and then demolded to obtain imitation stone PC bricks.

[0079] Comparative Example 3

[0080] A method for preparing a stone-like PC brick comprises the following steps:

[0081] (1) Imitation stone PC tiles, including base material and surface material, including:

[0082] The fabric includes the following raw materials by mass: 120 parts of colored sand, 15 parts of limestone powder, 8 parts of white carbon black, 30 parts of cement and 10 parts of water;

[0083] The base material includes the following raw materials in parts by weight: 80 parts of cement, 100 parts of crushed stone, 5 parts of kaolin, 5 parts of silica fume and 10 parts of water.

[0084] (2) Preparation method:

[0085] The colored sand, limestone powder, white carbon black, cement and water are stirred uniformly at 1400 r / min to obtain a fabric;

[0086] The cement, crushed stone, kaolin, silica fume and water are mixed evenly to obtain a base material;

[0087] Under vibration conditions, the base material is injected into the mold, and the vibration is used to ensure that the base material is evenly spread over the mold. After the base material is injected, the vibration is stopped, and the base material is pressurized for 2 seconds under the condition of 5KN, and then allowed to stand for 2 seconds; after standing, the base material is pressurized for 2 seconds under the condition of 5KN again, and then allowed to stand for 2 seconds to obtain the base material after pressurization;

[0088] Under the condition of vibration, the fabric is injected into the mold. After the fabric injection is completed, the vibration is stopped, and then it is pressurized under the condition of 50KN, and then demolded to obtain imitation stone PC bricks.

[0089] Comparative Example 4

[0090] A method for preparing a stone-like PC brick comprises the following steps:

[0091] (1) Imitation stone PC tiles, including base material and surface material, including:

[0092] The fabric includes the following raw materials by mass: 120 parts of colored sand, 15 parts of limestone powder, 8 parts of white carbon black, 30 parts of cement, 20 parts of epoxy resin and 10 parts of water;

[0093] The base material includes the following raw materials in parts by weight: 80 parts of cement, 100 parts of crushed stone, 5 parts of kaolin, 3 parts of ethyl methyl cellulose, 5 parts of silica fume and 10 parts of water.

[0094] (2) Preparation method:

[0095] Colored sand, epoxy resin, limestone powder, white carbon black, cement and water are uniformly stirred at 1800 r / min to obtain a fabric;

[0096] Mix cement, crushed stone, kaolin, ethyl methyl cellulose, silica fume and water evenly to obtain a base material;

[0097] Under vibration conditions, the base material is injected into the mold, and the vibration is used to ensure that the base material is evenly spread over the mold. After the base material is injected, the vibration is stopped, and the base material is pressurized for 2 seconds under the condition of 5KN, and then allowed to stand for 2 seconds; after standing, the base material is pressurized for 2 seconds under the condition of 5KN again, and then allowed to stand for 2 seconds to obtain the base material after pressurization;

[0098] Under the condition of vibration, the fabric is injected into the mold. After the fabric injection is completed, the vibration is stopped, and then it is pressurized under the condition of 50KN, and then demolded to obtain imitation stone PC bricks.

[0099] Comparative Example 5

[0100] A method for preparing a stone-like PC brick comprises the following steps:

[0101] (1) Imitation stone PC tiles, including base material and surface material, including:

[0102] The fabric includes the following raw materials by mass: 120 parts of colored sand, 15 parts of limestone powder, 8 parts of white carbon black, 30 parts of cement, 20 parts of epoxy resin and 10 parts of water;

[0103] The base material includes the following raw materials in parts by weight: 80 parts of cement, 100 parts of crushed stone, 5 parts of kaolin, 3 parts of ethyl methyl cellulose, 5 parts of silica fume and 10 parts of water.

[0104] (2) Preparation method:

[0105] After the colored sand and the epoxy resin are evenly mixed, a mixture is obtained;

[0106] Add limestone powder, white carbon black, cement and water to the mixture in sequence, and stir the above substances evenly at 1400 r / min to obtain a fabric;

[0107] Mix cement, crushed stone, kaolin, ethyl methyl cellulose, silica fume and water evenly to obtain a base material;

[0108] Under vibration conditions, the base material is injected into the mold to ensure that the base material is evenly spread over the mold through vibration. After the base material is injected, the vibration is stopped and the base material is pressurized for 2 seconds under 5KN to obtain the base material after pressurization;

[0109] Under the condition of vibration, the fabric is injected into the mold. After the fabric injection is completed, the vibration is stopped, and then it is pressurized under the condition of 50KN, and then demolded to obtain imitation stone PC bricks.

[0110] Comparative Example 6

[0111] A method for preparing a stone-like PC brick comprises the following steps:

[0112] (1) Imitation stone PC tiles, including base material and surface material, including:

[0113] The fabric includes the following raw materials by mass: 120 parts of colored sand, 15 parts of limestone powder, 8 parts of white carbon black, 30 parts of cement, 20 parts of epoxy resin and 10 parts of water;

[0114] The base material includes the following raw materials in parts by weight: 80 parts of cement, 100 parts of crushed stone, 5 parts of kaolin, 3 parts of ethyl methyl cellulose, 5 parts of silica fume and 10 parts of water.

[0115] (2) Preparation method:

[0116] After the colored sand and the epoxy resin are evenly mixed, a mixture is obtained;

[0117] Add limestone powder, white carbon black, cement and water to the mixture in sequence, and stir the above substances evenly at 1400 r / min to obtain a fabric;

[0118] Mix cement, crushed stone, kaolin, ethyl methyl cellulose, silica fume and water evenly to obtain a base material;

[0119] Under vibration conditions, the base material is injected into the mold, and the vibration is used to ensure that the base material is evenly spread over the mold. After the base material is injected, the vibration is stopped, and the base material is pressurized for 2 seconds under the condition of 15KN, and then allowed to stand for 2 seconds; after standing, the base material is pressurized for 2 seconds under the condition of 15KN again, and then allowed to stand for 2 seconds to obtain the base material after pressurization;

[0120] Under the condition of vibration, the fabric is injected into the mold. After the fabric injection is completed, the vibration is stopped, and then it is pressurized under the condition of 70KN, and then demolded to obtain imitation stone PC bricks.

[0121] Comparative Example 7

[0122] A method for preparing a stone-like PC brick comprises the following steps:

[0123] (1) Imitation stone PC tiles, including base material and surface material, including:

[0124] The fabric includes the following raw materials by mass: 120 parts of colored sand, 15 parts of limestone powder, 8 parts of white carbon black, 30 parts of cement, 20 parts of epoxy resin and 10 parts of water;

[0125] The base material includes the following raw materials in parts by weight: 80 parts of cement, 100 parts of crushed stone, 5 parts of kaolin, 3 parts of ethyl methyl cellulose, 5 parts of silica fume and 10 parts of water.

[0126] (2) Preparation method:

[0127] After the colored sand and the epoxy resin are evenly mixed, a mixture is obtained;

[0128] Add limestone powder, white carbon black, cement and water to the mixture in sequence, and stir the above substances evenly at 1400 r / min to obtain a fabric;

[0129] Mix cement, crushed stone, kaolin, ethyl methyl cellulose, silica fume and water evenly to obtain a base material;

[0130] Under vibration conditions, the base material is injected into the mold to ensure that the base material is evenly spread over the mold through vibration. After the base material is injected, the vibration is stopped, and the base material is pressurized for 2 seconds under 5KN conditions, and then left to stand for 2 seconds to obtain the base material after pressurization;

[0131] Under the condition of vibration, the fabric is injected into the mold. After the fabric injection is completed, the vibration is stopped, and then it is pressurized under the condition of 30KN, and then demolded to obtain imitation stone PC bricks.

[0132] Comparative Example 8

[0133] Regularly purchase imitation stone PC tiles.

[0134] Test Example 1

[0135] The compressive strength of the imitation stone PC bricks prepared in Examples 1-3 and Comparative Examples 1-8 was tested using the strength grade test method in GB / T 28635-2012 Concrete Pavement Bricks. The results are shown in Table 1.

[0136] Table 1 Compressive strength of imitation stone PC bricks in different treatments (unit: MPa)

[0137]

[0138]

[0139] Combined with the data in Table 1, it can be seen that compared with the stone-like PC bricks prepared in Comparative Examples 1-8, the stone-like PC bricks prepared in Examples 1-3 have higher compressive strength, with an average compressive strength range of 67.1-67.5 MPa, while the average compressive strength in the comparative examples is only 64.1 at most.

[0140] Test Example 2

[0141] According to the results of Test Example 1, the imitation stone PC bricks in Examples 1-3, Comparative Examples 4 and Comparative Examples 8 were selected for efflorescence test. The specific process is as follows: the imitation stone PC bricks in different treatments were soaked in deionized water to moisten their surfaces, and then placed in an oven for drying to observe whether efflorescence occurs on the surface. The above test process was repeated every 24 hours and recorded. The results are shown in Table 2.

[0142] Table 2 Results of efflorescence test under different treatments

[0143] deal with Example 1 Example 2 Example 3 Comparative Example 4 Comparative Example 8 24h No efflorescence No efflorescence No efflorescence No efflorescence No efflorescence 48h No efflorescence No efflorescence No efflorescence No efflorescence No efflorescence 72h No efflorescence No efflorescence No efflorescence No efflorescence No efflorescence 96h No efflorescence No efflorescence No efflorescence No efflorescence No efflorescence 120h No efflorescence No efflorescence No efflorescence Slight alkali No efflorescence 144h No efflorescence No efflorescence No efflorescence Slight alkali Slight alkali 168h No efflorescence No efflorescence No efflorescence Slight alkali Slight alkali 192h No efflorescence No efflorescence No efflorescence Obvious efflorescence Obvious efflorescence 216h No efflorescence No efflorescence No efflorescence Obvious efflorescence Obvious efflorescence 240h No efflorescence No efflorescence No efflorescence Severe alkali Obvious efflorescence

[0144] Combined with the data in Table 2, it can be seen that the stone-like PC bricks prepared by the schemes in Examples 1-3 have no efflorescence after 240 hours of efflorescence test treatment, which is better than the severe efflorescence and obvious efflorescence in Comparative Examples 4 and 8.

[0145] In summary, the present invention improves the strength and durability of the stone-like PC bricks and resists the erosion of chemical substances by adding colored sand, limestone powder, white carbon black, cement and epoxy resin to the fabric; at the same time, cement, crushed stone, kaolin, ethyl methyl cellulose and silica fume are used to prepare the base material, which is beneficial to improve the alkali resistance of the stone-like PC bricks and increase the sense of layering, so that high-strength and non-alkali-like stone-like PC bricks can be obtained. At the same time, the above preparation method is simple to operate and can meet the use requirements of various scenarios.

[0146] Although the above embodiment describes the present invention in detail, it is only a part of the embodiments of the present invention, not all of the embodiments. People can also obtain other embodiments based on this embodiment without creativity, and these embodiments all fall within the protection scope of the present invention.

Claims

1. A stone-like PC brick, comprising a base material and a surface material, characterized in that: The fabric comprises the following raw materials in parts by weight: 110-120 parts of colored sand, 10-15 parts of limestone powder, 8-10 parts of white carbon black, 20-30 parts of cement, 15-20 parts of epoxy resin and 5-10 parts of water; The base material comprises the following raw materials in parts by weight: 70-80 parts of cement, 90-100 parts of crushed stone, 3-5 parts of kaolin, 2-3 parts of ethyl methyl cellulose, 5-8 parts of silica fume and 5-10 parts of water.

2. The imitation stone PC brick according to claim 1, characterized in that: The fabric comprises the following raw materials in parts by weight: 120 parts of colored sand, 15 parts of limestone powder, 8 parts of white carbon black, 30 parts of cement, 20 parts of epoxy resin and 10 parts of water.

3. The imitation stone PC brick according to claim 1, characterized in that: The base material comprises the following raw materials in parts by weight: 80 parts of cement, 100 parts of crushed stone, 5 parts of kaolin, 3 parts of ethyl methyl cellulose, 5 parts of silica fume and 10 parts of water.

4. The method for preparing the stone-like PC brick according to any one of claims 1 to 3, characterized in that: The steps include: After the colored sand and epoxy resin are evenly mixed, limestone powder, white carbon black and cement are added to the mixture in sequence, and water is added and stirred evenly to obtain the fabric; Mix cement, crushed stone, kaolin, ethyl methyl cellulose, silica fume and water evenly to obtain a base material; The base material and the surface material are introduced into a mold in sequence, and then pressed and formed to obtain a stone-like PC brick.

5. The preparation method according to claim 4, characterized in that: When the base material or the outer material is introduced into the mold, the mold is accompanied by vibration; after the base material or the outer material is completely introduced into the mold, the vibration stops.

6. The preparation method according to claim 5, characterized in that: After the base material is completely introduced into the mold, the base material is subjected to a pressure treatment; the pressure treatment includes: applying pressure to the base material and letting it stand in a static state in sequence; The pressure when applying pressure is 5-10KN, and the time is 1-2s; the static time is 2-3s; The pressure treatment is performed 2-3 times.

7. The preparation method according to claim 4, characterized in that: The parameters of the pressurizing molding include: a pressure of 45-50KN.

8. The preparation method according to claim 4, characterized in that: When adding water and stirring, the stirring speed is 1400-1500r / min.

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