Colored super-hydrophobic foam concrete tile and structure and preparation method thereof

Abstract

The invention relates to a colored super-hydrophobic foam concrete tile, and a structure and a preparation method thereof, the concrete tile is prepared from the following raw materials: 600-650 parts of cement, 180-220 parts of fly ash, 20-30 parts of calcium stearate, 2.5-5 parts of a water reducing agent, 60-75 parts of siloxane, 0.3-0.5 part of cellulose, 70-100 parts of a pigment and 3-6 parts of polypropylene fiber, the length of the polypropylene fiber is 12-18 mm, and the thickness of the polypropylene fiber is 10-20 mm. The addition amount of the foam is 2-4L / kg of the total amount of the other components except the foam; the concrete has the advantages of being ideal in durability, good in heat preservation performance, free of leakage and high in splitting tensile strength.

Description

Technical Field

[0001] The present application relates to the technical field of concrete tiles, and in particular to a colored super-hydrophobic foam concrete tile, its structure and preparation method. Background Art

[0002] About 30% of the world's energy is consumed in buildings. my country's energy consumption in the construction industry accounts for 35% of the total energy consumption, and will further increase with the development of society. Therefore, how to reduce the high energy consumption of buildings has become one of the issues that scholars attach great importance to. Traditional concrete has poor thermal insulation performance. Improving the thermal insulation performance of concrete can significantly reduce the heat loss of buildings and reduce building energy consumption.

[0003] The high porosity and low density of lightweight concrete give it good thermal insulation performance, which meets the requirements of reducing building energy consumption. The introduction of foaming agent makes foam concrete have more pores and lighter weight; at the same time, these pores can reduce the transfer of heat and sound. Therefore, foam concrete has the advantages of light weight, thermal insulation, fire resistance, shock absorption and sound absorption. In view of the above advantages, foam concrete has been widely used in building energy conservation and reducing building self-weight in various countries around the world.

[0004] However, due to the dense distribution of pores and large pore size in foam concrete, it is very easy to absorb water, which affects the performance of foam concrete and further affects the durability of the structure. Therefore, further improving the waterproof performance of foam concrete can effectively improve the durability of building structures, thereby achieving environmental protection, energy saving, and extending the service life of buildings. Modifying cement-based materials into hydrophobic materials can improve the durability of foam concrete. Hydrophobic cement-based materials are new building materials made by surface or overall hydrophobic modification of conventional cement-based materials. Compared with conventional cement-based materials, they have better impermeability, frost resistance, and resistance to chloride ion erosion, and have very good application prospects in some special engineering fields.

[0005] However, there are few reports on the use of foam concrete in the preparation of roof tiles. Moreover, when it is used as the preparation of roof tiles, it is required to have ideal splitting strength, thermal insulation and durability, and it is also required to be able to withstand long-term sunlight, high and low temperature resistance, rainwater erosion without leakage, corrosion resistance, etc. Therefore, preparing a foam concrete tile that meets the performance requirements of roof tiles is a technology with great industry application value. Summary of the invention

[0006] In view of the above-mentioned deficiencies in the prior art, the present application provides a colored foam concrete tile with super hydrophobic properties, which can retain the excellent properties of foam concrete while also having ideal durability, good thermal insulation performance, no leakage and high splitting strength.

[0007] In order to solve the above technical problems, the technical solution adopted in the present application is: a colored super-hydrophobic foam concrete tile, the raw materials for preparing the concrete tile include: 600-650 parts of cement, 180-220 parts of fly ash, 20-30 parts of calcium stearate, 2.5-5 parts of water reducer, 60-75 parts of siloxane, 0.3-0.5 parts of cellulose, 70-100 parts of pigment, 3-6 parts of polypropylene fiber, the length of the polypropylene fiber is 12-18mm, and the amount of foam added is 2-4L / kg of the total amount of other components except the foam (that is, other components except the above foam, 2-4L of foam is added for every 1000g of other components).

[0008] Furthermore, the colored super-hydrophobic foam concrete tile of the present application, the raw materials for preparing the concrete tile include: 615-640 parts of cement, 200-210 parts of fly ash, 21-27 parts of calcium stearate, 3-4 parts of water reducer, 61-70 parts of siloxane, 0.35-0.45 parts of cellulose, 75-85 parts of pigment, 3.5-5 parts of polypropylene fiber, the length of the polypropylene fiber is 15-18mm, and the amount of foam added is 2.5-3.5L / kg of the total amount of the other components except the foam.

[0009] Furthermore, the pigment is iron oxide powder (iron oxide pigment).

[0010] Furthermore, the cement and fly ash described in the present application are cementitious materials, and the added amount of the polypropylene fiber is 0.5-0.7% of the total amount of the cementitious materials.

[0011] Furthermore, the raw materials for preparing the concrete tile also include water, and the mass ratio of the water to the gel material is 0.3-0.5:1.

[0012] Furthermore, the amount of polypropylene fiber added is 0.6% of the total amount of cementitious material; because too little fiber cannot meet the flexural strength of the colored super-hydrophobic foam concrete, and too much fiber will have a negative impact on the compressive strength of the colored super-hydrophobic foam concrete, so controlling the doping amount to 0.6% can overcome the above-mentioned shortcomings.

[0013] Furthermore, the foam mentioned above in the present application is prepared by the following process: 2-4g of sodium dodecyl sulfate is dissolved in 1L of water, and stirred at 35-45°C and 450-550rpm / min using a magnetic stirrer for 8-12 minutes, and then a cement foaming agent (cement foaming agent: solution) is added to the above solution at a weight ratio of 1:55-65, and stirred at 450-550rpm / min of a magnetic stirrer for 1-5min to obtain a foamed material; when in use, the air compressor pressure is controlled at 6.5-8.5MPa, and the foam of the foamed material is mixed into the material of the concrete tile.

[0014] The present application also provides a structure of the above-mentioned colored super-hydrophobic foam concrete tile, which is prepared using the raw materials of the above-mentioned concrete tile, and its specific structure includes a tile body, wherein the tile body has a first raised portion and a second raised portion along the length direction, a first connecting plate is provided at one end of the first raised portion, and a second connecting plate is provided between the first raised portion and the second raised portion; a first lap joint is provided at the free end of the first connecting plate, and a second lap joint is provided at the tail end of the second raised portion, and the first lap joint is adapted to the second lap joint; the tile body has a first surface and a second surface that are arranged oppositely along the thickness direction, the first surface is provided with a convex rib along the length direction, and the second surface is provided with a groove along the length direction, and the convex rib is adapted to the groove.

[0015] By adopting the above structure, a tile of special structure prepared by using the above raw materials is prepared. The tile has two raised parts to prevent the collection of rainwater, and two overlap joints are arranged along the length direction so that multiple tiles in the length direction can be effectively hooked and connected. At the same time, ribs and grooves extending along the length direction are arranged on the first surface and the second surface, so that multiple tiles can be effectively hooked and connected along the width direction. Therefore, the above structure of the present application realizes the effective connection and laying of tiles in the longitudinal and transverse directions, and can also avoid the collection of rainwater, improve the connection firmness between tiles, and effectively prevent water from leaking.

[0016] Furthermore, the first connecting plate and the second connecting plate are of an arc-shaped bending structure, and the direction of the bending protrusion is opposite to the direction of the first raised portion and the second raised portion; with this structure, rainwater sliding down from the first raised portion and the second raised portion can be effectively collected on the connecting plate, and then quickly drained through the downwardly recessed connecting plate, thereby avoiding long-term accumulation of rainwater.

[0017] Furthermore, the first raised portion and the second raised portion both include a large raised portion and a small raised portion, and the large raised portion and the small raised portion are sequentially connected along the width direction of the tile body, the raised radius of the large raised portion is greater than the raised radius of the small raised portion, and the difference between the raised radius of the large raised portion and the small raised portion is equal to the thickness of the tile body; with this structure, when multiple tiles are overlapped with each other along the width direction, it can be ensured that the large raised portions of two adjacent tiles are more closely combined, and their upper surfaces also have the same raised height, further enhancing the tightness of the overlap of adjacent tiles and achieving a more ideal waterproof effect.

[0018] Furthermore, the first and second raised portions described in the present application are cylindrical raised portions, and the raised height thereof is greater than the radius of the cylinder; adopting this structure can further enhance the effective drainage of rainwater by the raised portions and avoid rainwater accumulation; and the present application can produce tiles with the above-mentioned raised height precisely because of the above-mentioned specific tile raw materials of the present application, and the tiles of the present application have ideal anti-bending properties and can therefore produce tile structures with the above-mentioned raised height.

[0019] Furthermore, the first lap joint includes an L-shaped lap plate bent inwardly, a lap platform is provided at the bottom end of the L-shaped lap plate, and a vertical lap plate arranged parallel to the long side is provided at the tail end of the short side of the L-shaped lap plate; the second lap joint includes a lap joint formed by the tail end of the large raised portion and the tail end of the small raised portion of the second raised portion; by adopting the above structure, multiple tiles can be connected horizontally, i.e. along the length direction of the tiles, and the lap joint positions of these tiles are covered by the second raised portion to form an alternating arrangement of raised portions and connecting plates, which is convenient for rapid drainage of rainwater and effective waterproofing.

[0020] The present application also provides a method for preparing the above-mentioned colored super-hydrophobic foam concrete tile, the preparation steps comprising:

[0021] (1) Take the raw materials of concrete tiles except foam, water reducing agent and siloxane, mix and stir according to the formula ratio;

[0022] (2) then adding water, a water reducing agent and siloxane, and mixing and stirring;

[0023] (3) preparing a foam material, and then placing the foam material into the mixed material obtained in step (2), and stirring until the wet density is 750-800 kg / m 3 Until between;

[0024] (4) Adding the mixture prepared in step (3) into a mold to form concrete tiles, and demolding to obtain the final concrete tile product.

[0025] Furthermore, the mixing and stirring of the raw materials in step (1) of the present application adopts the following procedure: first, cement, fly ash, pigment, calcium stearate, polypropylene fiber, and cellulose powder materials are weighed according to the formula ratio, and then the above components are mixed and stirred for 2-4 minutes; the stirring rate of slow stirring is 135-145rpm / min.

[0026] The above-mentioned tile structure of the present application can be prepared by the above-mentioned preparation method and preparation raw materials. It is a tile structure with a multi-bending arc structure. Of course, it can also be prepared into a plate-like structure, etc., and can be prepared specifically according to the usage scenario and needs.

[0027] Advantages and beneficial effects of this application:

[0028] 1. The colored super-hydrophobic foam concrete tile prepared by the solution of the present application has a more excellent super-hydrophobic performance, and its contact angle is between 150-155°, and Figure 1-2 It can be clearly seen that the concrete tiles prepared in the present application have excellent super-hydrophobic properties and can meet the requirements of roof tiles for preventing water seepage.

[0029] 2. The colored super-hydrophobic foam concrete tiles prepared by the solution of the present application have more excellent splitting tensile performance, and their splitting tensile strength can reach above 0.60MPa, which can effectively meet the use requirements of laying roof tiles in an overlapping manner without problems such as cracking.

[0030] 3. The concrete tiles of the present application are prepared by adding iron oxide pigments to their raw materials, which not only can give the product a colorful visual display, but also this pigment has strong tinting power and hiding power, as well as excellent acid and alkali resistance, light resistance, high temperature resistance and other properties. It also has the characteristics of oil-free and water-free permeability, and is therefore more conducive to the preparation of roofing tiles.

[0031] 4. The concrete tiles prepared in this application have a density of 540-600kg / m 3 The colored super-hydrophobic foam concrete tiles have a thermal conductivity of 0.1-0.15 W / m·degree, while the thermal conductivity of ordinary concrete tiles is 1.28 W / m·degree, and the thermal conductivity of synthetic resin tiles is 0.325 W / m·degree; it can be seen that the thermal conductivity of the concrete tiles prepared by the scheme of the present application is lower, so they must have more ideal thermal insulation performance; in addition, the scheme of the present application, by adding fibers of specific specifications and a specific foaming method, makes the dry density of the prepared concrete tiles meet the above-mentioned parameter range, and has a uniform pore size, which effectively reduces the mass of the overall concrete tiles.

[0032] 5. The foam in the raw material of the concrete tile of the present application is prepared by the following process: 2-4g of sodium dodecyl sulfate is dissolved in 1L of water, and stirred at 35-45°C and 450-550rpm / min for 8-12 minutes using a magnetic stirrer, and then a cement foaming agent (cement foaming agent: solution) is added to the above solution at a weight ratio of 1:55-65, and stirred at 450-550rpm / min of the magnetic stirrer for 1-5min to obtain a foamed material; when used, the air compressor pressure is controlled at 6.5-8.5MPa, and the foam of the foaming material is placed in the material mixed with the concrete tile; this method of adding foam (conventionally, the foaming agent is mixed with the raw material for foaming) can prepare foamed concrete tiles, and can reduce the density of the concrete tiles, thereby reducing their weight, while also increasing their thermal insulation performance and having ideal hydrophobic properties, that is, a concrete tile that is both hydrophobic, light in weight and has good thermal insulation performance is obtained, which meets the performance requirements of roof tiles.

[0033] 6. In the preparation process of the present application, the mixing and stirring of the raw materials in step (1) adopts the following process: first, cement, fly ash, pigment, calcium stearate, polypropylene fiber, and cellulose powder materials are weighed according to the formula ratio, and then the above components are mixed and stirred for 2-4 minutes; the stirring rate of slow stirring is 135-145rpm / min; the control of the above-mentioned specific material addition and stirring method can make the iron oxide pigment more fully mixed in the material, so that it is more evenly dispersed in the material, and the color of the formed colored super hydrophobic concrete tile will not have obvious color difference, and the performance of the iron oxide pigment will not deviate at all positions of the entire concrete tile, thereby improving the tinting power and hiding power of the overall concrete tile, as well as excellent acid and alkali resistance, light resistance, high temperature resistance and other properties, and also has the characteristics of no oil permeability and no water permeability. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 Microscopic image of the contact angle detection of the concrete tile prepared in Example 1 of the present application.

[0035] Figure 2 Pictures of the hydrophobic experiment of the concrete tiles prepared in Example 1 of the present application.

[0036] Figure 3 Process flow chart for preparing concrete tiles of this application.

[0037] Figure 4 Schematic diagram of the structure of the concrete tile of this application (visible from the front).

[0038] Figure 5 Schematic diagram of the structure of the concrete tile of this application (visible on the reverse side).

[0039] As shown in the accompanying drawings: a. Tile body, a1. First surface, a2. Second surface, 1. First raised portion, 2. Second raised portion, 101. Large raised portion, 102. Small raised portion, 201. Tail end of large raised portion, 202. Tail end of small raised portion, 3. First connecting plate, 4. Second connecting plate, 5. First lap joint, 501. L-shaped lap plate, 502. Lap platform, 503. Vertical lap plate, 6. Second lap joint, 7. Rib, 8. Groove. DETAILED DESCRIPTION

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments. Obviously, the described embodiments are only preferred embodiments, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application;

[0041] The pigment used in the present application is an iron oxide pigment, specifically iron oxide red, iron oxide yellow, iron oxide blue, iron oxide green, etc. Commercially available iron oxide pigment series products can be applied to the foamed concrete tiles of the present application.

[0042] The specifications of the polypropylene fiber of the present application are length 12-18mm, bundled monofilament, specific gravity 0.91, tensile strength above 486MPa, elastic mold (elastic modulus) above 4.8GPa, fiber diameter 18-48 microns, tensile limit above 15%; high acid and alkali resistance, low thermal conductivity, strong low temperature resistance, and no water absorption.

[0043] First, prepare the foam of the present application. The specific preparation process is as follows: dissolve 3g of sodium dodecyl sulfate in 1L of water, use a magnetic stirrer to stir at 500rpm / min at 40°C for 10 minutes, add a cement foaming agent to the above solution at a ratio of 1:60, and stir at 500rpm / min with a magnetic stirrer for 2min to obtain a foamed material. When using, control the air compressor pressure at 6.5-8.5MPa, and add the foam in the foaming material to the material. The foam is added to prepare foamed concrete, which reduces the density of concrete tiles and increases their thermal insulation properties.

[0044] For specific preparation steps, please refer to the process flow Figure 3 shown.

[0045] Example 1

[0046] A colored super-hydrophobic foam concrete tile, the preparation raw materials of the concrete tile include: 624 parts of cement, 208 parts of fly ash, 25 parts of calcium stearate, 3.7 parts of water reducer, 67 parts of siloxane, 0.4 parts of cellulose, 83.2 parts of pigment (yellow iron oxide), 5.0 parts of polypropylene fiber, the length of the polypropylene fiber is 18mm, and the foam is added in an amount of 3L / kg of the total amount of the other components except the foam.

[0047] The preparation steps are:

[0048] (1) Take the other raw materials of concrete tiles except foam, water reducing agent and siloxane, mix and stir according to the above formula ratio; specifically, first weigh the powder materials of cement, fly ash, pigment, calcium stearate, polypropylene fiber and cellulose according to the formula ratio, and then mix and stir the above components for 3 minutes; slow stirring is adopted, and the speed is 140 rpm / min;

[0049] (2) then adding water, water reducing agent and siloxane, mixing and stirring; the amount of water added is 40% of the total amount of cement and fly ash;

[0050] (3) The prepared foam material is placed into the mixture obtained in step (2) through a vacuum compressor, and then the mixture is stirred until its wet density is 750-800 kg / m 3 Until between;

[0051] (4) The mixture prepared in step (3) is then added into a mold (a release agent may be sprayed into the mold to facilitate demoulding after molding, and the mold may be a mold that matches the outer contour of the prepared concrete tile) to mold the concrete tile, and demoulding is performed to obtain the final concrete tile product.

[0052] Example 2

[0053] A colored super-hydrophobic foam concrete tile, the raw materials for preparing the concrete tile include: 620 parts of cement, 205 parts of fly ash, 24 parts of calcium stearate, 3.5 parts of water reducer, 65 parts of siloxane, 0.45 parts of cellulose, 85 parts of pigment (oxidation green), 4.3 parts of polypropylene fiber, the length of the polypropylene fiber is 18 mm, and the amount of foam added is 3L / kg of the total amount of the other components except the foam.

[0054] Preparation Steps Example 1: The size of the prepared concrete tile is 30mm*30mm*5mm, the mass is 2650.7g, and the dry density is 589kg / m 3 .

[0055] Example 3

[0056] A colored super-hydrophobic foam concrete tile. The raw materials for preparing the concrete tile include: 640 parts of cement, 210 parts of fly ash, 27 parts of calcium stearate, 4 parts of water reducing agent, 68 parts of siloxane, 0.43 parts of cellulose, 84 parts of pigment, 4.5 parts of polypropylene fiber, the length of the polypropylene fiber is 16 mm, and the amount of foam added is 3.2 L / kg of the total amount of the other components except the foam.

[0057] Preparation steps of tube example 1.

[0058] Example 4

[0059] A colored super-hydrophobic foam concrete tile. The raw materials for preparing the concrete tile include: 650 parts of cement, 215 parts of fly ash, 26 parts of calcium stearate, 4.5 parts of water reducer, 70 parts of siloxane, 0.45 parts of cellulose, 86 parts of pigment, 5.2 parts of polypropylene fiber, the length of the polypropylene fiber is 18 mm, and the amount of foam added is 3.5 L / kg of the total amount of the other components except the foam.

[0060] Preparation steps of tube example 1.

[0061] Comparative Example 1

[0062] The other components are the same as those in Example 1, except that no polypropylene fiber material is added therein.

[0063] Comparative Example 2

[0064] The other components are the same as those in Example 1, except that the foaming agent is directly added to the raw materials for mixing and foaming, and the amount of the foaming agent added is 30 parts.

[0065] The performance tests of the concrete tiles prepared in Examples 1-4 and Comparative Examples of the present application are as follows:

[0066] Table 1 Performance of concrete tiles prepared in Examples 1-4 and Comparative Examples

[0067]

[0068] The addition of polypropylene fiber increases the flexural strength of concrete tiles, that is, the folding strength ratio (flexural strength / density), but will appropriately reduce the compressive strength of concrete, that is, the compressive strength ratio (compressive strength / density), but the reduced strength fully meets the strength requirements of roof tiles; and the polypropylene fiber of the present application has high strength, which is beneficial to the improvement of the mechanical properties of the tiles, has strong adhesion and forms a strong grip with the cement surface, and has good dispersion in the material and will not clump, ensuring the improvement of the crack resistance of the prepared product, and has good stability and strong acid and alkali resistance, which is more suitable for the use environment of roof tiles.

[0069] It can be seen from the above embodiments and comparative examples that the technical solution of the present application is a solution for concrete tiles. The prepared concrete tiles are used in the use scenario of roof overlapping tiles. Since the tiles are overlapped with each other during use, the tiles are required to have sufficient splitting strength. The technical solution of the present application introduces polypropylene fibers of specific length and specifications, combined with other components and specific preparation methods and processes. The obtained tiles have higher splitting strength than the tile structure of the prior art without fibers, and can effectively meet the use requirements of roof overlapping tiles; because this specific overlapping application scenario requires splitting strength, and the splitting strength of the concrete tiles is increased by adding polypropylene fibers; in addition, the concrete tiles of the present application retain the excellent properties of foam concrete while making it have different colors, improving the display effect of the building roof, and also improving the durability of the foam concrete. The concrete tile of the present application is a colored super-hydrophobic foam concrete tile, which increases the insulation and water-repellent functions of the roof tiles, effectively preventing the occurrence of roof leakage; and the concrete tiles prepared in the present application have a density of 540-550kg / m 3 The colored super-hydrophobic foam concrete tile has a thermal conductivity of 0.1-0.15 W / m·degree, while the thermal conductivity of ordinary concrete tiles is 1.28 W / m·degree, and the thermal conductivity of synthetic resin tiles is 0.325 W / m·degree; it can be seen that the concrete tile prepared by the scheme of the present application has a lower thermal conductivity and a lighter weight, so it must have a more ideal thermal insulation performance; and the concrete tile prepared by the present application has super-hydrophobic properties, which can be specifically referred to in the attached Figure 1-2 As shown, and the water absorption rate is low, it is more conducive to improving the waterproof performance of the roof tile; in addition, the foamed concrete tile prepared in this application is Figure 2 It can be seen that it has a uniform pore distribution, indicating that the concrete tile prepared by injecting foam in the present application has a uniform pore distribution, which can effectively reduce the weight of the concrete tile and improve its thermal insulation effect.

[0070] As attached Figure 4-5As shown, the present application also provides a tile structure prepared by using the raw materials of the above-mentioned colored super-hydrophobic foam concrete tile, which can be used on buildings such as roofs. It is a tile structure with multiple bending arcs and can be overlapped with each other horizontally and vertically, effectively waterproof and prevent rainwater accumulation. The structure specifically includes a tile body a, and the tile body a has a first raised portion 1 and a second raised portion 2 along the length direction. A first connecting plate 3 is provided at one end of the first raised portion 1, and a second connecting plate 4 is provided between the first raised portion 1 and the second raised portion 2; a first lap joint 5 is provided at the free end of the first connecting plate 3, and a second lap joint 6 is provided at the tail end of the second raised portion 2, and the first lap joint 5 and The second lap joint 6 is adapted (that is, when two adjacent tiles are overlapped along the length direction, the first lap joint on one tile is just stuck in the second lap joint of the other tile, thereby improving the firmness of the connection between adjacent tiles in the length direction and preventing loosening); the tile body a has a first surface a1 and a second surface a2 relatively arranged along the thickness direction, the first surface a1 is provided with a convex rib 7 along the length direction, the second surface a2 is provided with a groove 8 along the length direction, and the convex rib 7 is adapted to the groove 8 (that is, when two adjacent tiles are overlapped along the width direction, the convex rib on one tile is just stuck in the groove of the other tile, thereby improving the firmness of the connection between adjacent tiles in the width direction and preventing loosening).

[0071] By adopting the above structure, a tile of special structure prepared by using the above raw materials is prepared. The tile has two raised parts to prevent the collection of rainwater, and two overlap joints are arranged along the length direction so that multiple tiles in the length direction can be effectively hooked and connected. At the same time, ribs and grooves extending along the length direction are arranged on the first surface and the second surface, so that multiple tiles can be effectively hooked and connected along the width direction. Therefore, the above structure of the present application realizes the effective connection and laying of tiles in the longitudinal and transverse directions, and can also avoid the collection of rainwater, improve the connection firmness between tiles, and effectively prevent water from leaking.

[0072] As attached Figure 4-5 As shown, the first connecting plate 3 and the second connecting plate 4 described in the present application are in an arc-shaped bending structure, and the bending convex direction is opposite to the direction of the first raised portion 1 and the second raised portion 2 (as an example, the surface of the tile structure of the present application where the raised directions of the first raised portion and the second raised portion are located serves as the outer facing surface of the tile, i.e., the front surface, and the bending convex direction of the first connecting plate is the inner surface of the tile, i.e., the reverse surface); by adopting this structure, rainwater sliding down from the first raised portion and the second raised portion can be effectively collected on the connecting plate, and then quickly drained through the downwardly concave connecting plate to avoid long-term accumulation of rainwater; the convex curvature of the first connecting plate and the second connecting plate of the present application is smaller than the convex curvature of the first raised portion and the second raised portion.

[0073] As attached Figure 4-5 As shown, the first raised portion 1 and the second raised portion 2 described in the present application both include a large raised portion 101 and a small raised portion 102, and the large raised portion 101 and the small raised portion 102 are sequentially connected along the width direction of the tile body a, the raised radius of the large raised portion 101 is greater than the raised radius of the small raised portion 102, and the difference in the raised radius between the large raised portion 101 and the small raised portion 102 is equal to the thickness of the tile body; with this structure, when multiple tiles are overlapped with each other along the width direction, it can be ensured that the large raised portions of the two adjacent tiles are more tightly combined, and their upper surfaces also have the same raised height, further enhancing the tightness of the overlap of the adjacent tiles and achieving a more ideal waterproof effect; that is, the two tiles overlapped along the width direction of the tiles are brought close, the grooves and the convex ribs cooperate, and at the same time, the upper end face of the large raised portion of the lower tile along the width direction just abuts against the lower end face of the large raised portion of the upper tile, and the two are flush after abutment.

[0074] As attached Figure 4-5 As shown, the first raised portion 1 and the second raised portion 2 described in the present application are cylindrical raised portions, and the raised height thereof is greater than the radius of the cylinder; adopting this structure can further enhance the effective drainage of rainwater by the raised portion and avoid rainwater accumulation; and the present application can produce tiles with the above-mentioned raised height precisely because of the above-mentioned specific tile raw materials of the present application, and the tiles of the present application have ideal anti-bending stress, so a tile structure with the above-mentioned raised height can be produced.

[0075] As attached Figure 4-5 As shown, the first lap joint 5 described in the present application includes an L-shaped lap plate 501 bent inwardly, a lap platform 502 is provided at the bottom end of the L-shaped lap plate, and a vertical lap plate 503 arranged parallel to the long side is provided at the tail end of the short side of the L-shaped lap plate; the second lap joint 6 includes a lap joint formed by the tail end 201 of the large raised portion and the tail end 202 of the small raised portion of the second raised portion 2; by adopting the above structure, multiple tiles can be connected horizontally, i.e. along the length direction of the tiles, and the lap joint positions of these tiles are covered by the second raised portion to form an alternating arrangement of raised portions and connecting plates, which is convenient for rapid drainage of rainwater and effective waterproofing.

Claims

1. A colored super-hydrophobic foam concrete tile, characterized by: The raw materials for preparing the concrete tile include: 600-650 parts of cement, 180-220 parts of fly ash, 20-30 parts of calcium stearate, 2.5-5 parts of water reducing agent, 60-75 parts of siloxane, 0.3-0.5 parts of cellulose, 70-100 parts of pigment, 3-6 parts of polypropylene fiber, the length of the polypropylene fiber is 12-18mm, and the foam is added in an amount of 2-4L / kg of the total amount of the other components except the foam.

2. The colored super-hydrophobic foam concrete tile according to claim 1, characterized in that: The raw materials for preparing the concrete tile include: 615-640 parts of cement, 200-210 parts of fly ash, 21-27 parts of calcium stearate, 3-4 parts of water reducing agent, 61-70 parts of siloxane, 0.35-0.45 parts of cellulose, 75-85 parts of pigment, 3.5-5 parts of polypropylene fiber, the length of the polypropylene fiber is 15-18mm, and the foam is added in an amount of 2.5-3.5L / kg of the total amount of the other components except the foam.

3. The colored super-hydrophobic foam concrete tile according to claim 1, characterized in that: The pigment is iron oxide powder.

4. The colored super-hydrophobic foam concrete tile according to claim 1, characterized in that: The cement and fly ash are cementitious materials, and the added amount of the polypropylene fiber is 0.5-0.7% of the total amount of the cementitious materials.

5. The colored super-hydrophobic foam concrete tile according to claim 4, characterized in that: The raw materials for preparing the concrete tile also include water, and the mass ratio of the water to the gel material is 0.3-0.5:1; the added amount of the polypropylene fiber is 0.6% of the total amount of the gel material.

6. The colored super-hydrophobic foam concrete tile according to claim 1, characterized in that: The foam is prepared by the following process: 2-4g of sodium dodecyl sulfate is dissolved in 1L of water, and stirred for 8-12 minutes at 35-45°C and 450-550rpm / min using a magnetic stirrer, and then a cement foaming agent is added to the above solution at a weight ratio of 1:55-65, and stirred for 1-5min at 450-550rpm / min in a magnetic stirrer to obtain a foamed material; when used, an air compressor is used and the pressure is controlled at 6.5-8.5MPa to mix the foam of the foamed material into the material of the concrete tile.

7. A structure of a colored super-hydrophobic foam concrete tile according to any one of claims 1 to 6, characterized in that: The structure includes a tile body, wherein the tile body has a first raised portion and a second raised portion along the length direction, a first connecting plate is arranged at one end of the first raised portion, and a second connecting plate is arranged between the first raised portion and the second raised portion; a first lap joint is arranged at the free end of the first connecting plate, and a second lap joint is arranged at the tail end of the second raised portion, and the first lap joint is adapted to the second lap joint; the tile body has a first surface and a second surface arranged oppositely along the thickness direction, the first surface is provided with convex ribs along the length direction, and the second surface is provided with grooves along the length direction, and the convex ribs are adapted to the grooves.

8. The structure of the colored super-hydrophobic foam concrete tile according to claim 7 is characterized by: The first connecting plate and the second connecting plate are of arc-shaped bending structure, and the bending convex direction is opposite to that of the first raised part and the second raised part; the first raised part and the second raised part both include a large raised part and a small raised part, and the large raised part and the small raised part are connected in sequence along the width direction of the tile body, the raised radius of the large raised part is greater than the raised radius of the small raised part, and the difference between the raised radius of the large raised part and the small raised part is equal to the thickness of the tile body; the first raised part and the second raised part are cylindrical raised parts, and the raised height is greater than the radius of the cylinder; the first lap joint includes an L-shaped lap plate bent inwardly, a lap platform is provided at the bottom end of the L-shaped lap plate, and a vertical lap plate parallel to the long side is provided at the tail end of the short side of the L-shaped lap plate; the second lap joint includes a lap joint formed by the tail end of the large raised part and the tail end of the small raised part of the second raised part.

9. A method for preparing a colored super-hydrophobic foam concrete tile, characterized in that: The preparation steps include: (1) Take the raw materials of concrete tiles except foam, water reducing agent and siloxane, mix and stir according to the formula ratio; (2) then adding water, a water reducing agent and siloxane, and mixing and stirring; (3) preparing a foam material, and then placing the foam material into the mixture obtained in step (2), and then stirring the mixture until the wet density is 750-800 kg / m 3 until; (4) Adding the mixture prepared in step (3) into a mold to form concrete tiles, and demolding to obtain the final concrete tile product.

10. The method for preparing the colored super-hydrophobic foam concrete tile according to claim 9, characterized in that: The mixing and stirring of the raw materials in step (1) is carried out in the following process: cement, fly ash, pigment, calcium stearate, polypropylene fiber and cellulose powder are weighed according to the formula ratio, and then the above components are mixed and stirred for 2-4 minutes; the stirring rate of slow stirring is 135-145 rpm / min.

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