Preparation method of waterproof building material

Abstract

The invention discloses a preparation method of a waterproof building material, and relates to the technical field of building material preparation. The method specifically comprises the following steps that S1, a stone composite board is manufactured; mixing calcium particles, cement, pebbles, sand and an additive I in proportion to form a pebble mixed material, pouring the mixed material into a mold, and performing compression molding to obtain a pebble composite board; s2, a reinforced concrete thin plate is manufactured; cement, stones, sand and the second additive are mixed in proportion to form concrete, and the concrete is poured into the mold with the steel bar structure. According to the preparation method of the waterproof building material, the stone composite plate with the waterproof capability and the reinforced concrete thin plate with the waterproof capability are bonded through the asphalt mastic with the waterproof capability, and then the waterproof paint is matched, so that the produced waterproof composite plate has higher waterproof capability, and meanwhile, the fireproof performance and the corrosion resistance of the waterproof composite plate are ensured; and the use effect of the waterproof composite board is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of building material preparation, and in particular to a method for preparing a waterproof building material. Background Art

[0002] Waterproof materials are materials that prevent rainwater, snow water and groundwater from penetrating into the building's enclosure structure; prevent moisture, steam and other harmful gases and liquids in the air from eroding; and prevent water supply and drainage from penetrating into the partition structure. These materials are collectively referred to as waterproof materials. Waterproof materials prevent rainwater, groundwater, industrial and civil water supply and drainage, corrosive liquids, and moisture and steam in the air from invading the building. The parts of the building that need waterproofing are mainly the roof, wall, floor and basement.

[0003] After searching, the Chinese patent application number 202210531053.0 discloses a waterproof, thermal insulation building material and a preparation method, including the following steps: S1. Prepare cement, sand, expanded perlite, waterproofing agent and polystyrene particles according to weight ratio; S2. Use a mixing device to mix the above raw materials evenly to obtain a mixed slurry; S3. Introduce the mixed slurry into a processing device, and process it through the processing device to obtain a waterproof, thermal insulation building material; S4. Perform quality inspection, packaging and storage on the obtained waterproof, thermal insulation building material; When mixing in step S2, first mix the cement, sand, expanded perlite and polystyrene particles together, dry stir them evenly, and then add the waterproofing agent to mix evenly.

[0004] The waterproof, thermal insulation and heat insulating building materials in the above patent have the following shortcomings: this method mixes cement, sand, expanded perlite and polystyrene particles together, stirs them evenly, and then adds a waterproofing agent and mixes them evenly. The obtained waterproof, thermal insulation and heat insulating building materials have certain waterproof, thermal insulation and heat insulating effects, but in actual use, the flame retardant effect of polystyrene particles is relatively low. Direct application to the above building materials will greatly reduce the flame retardant effect of the overall building materials, which is not conducive to long-term use. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings in the prior art and to propose a method for preparing a waterproof building material.

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

[0007] A method for preparing a waterproof building material comprises the following steps:

[0008] S1: manufacturing a stone composite board; mixing calcium particles, cement, stone, sand and additives in proportion to form a stone mixed material, pouring the mixed material into a mold, pressing and forming, and obtaining a stone composite board;

[0009] S2: manufacturing reinforced concrete thin plates; cement, gravel, sand and additive 2 are mixed in proportion to form concrete, the concrete is poured into a mold for placing a steel bar structure, and naturally dried and formed to obtain reinforced concrete thin plates;

[0010] S3: manufacturing a composite waterproof building substrate; bonding the stone composite board and the reinforced concrete thin plate by hot-melt asphalt adhesive to obtain a composite waterproof building substrate;

[0011] S4: manufacturing a waterproof composite board; applying a building waterproof paint on the surface of the stone synthetic board of the composite waterproof building substrate and the side of the reinforced concrete thin board, and obtaining the waterproof composite board after drying.

[0012] Preferably, the manufacturing of the stone composite board specifically includes the following steps:

[0013] S11: manufacturing calcium gypsum; calcium particles and cement are mixed with water according to a certain proportion to manufacture calcium gypsum;

[0014] S12: manufacturing a stone mixed material; mixing calcium gypsum, stone, and sand with water according to a proportion, and adding additives according to a proportion to manufacture a stone mixed material;

[0015] S13: Pressing and molding; pouring the stone mixed material into a mold, pressing and molding, and then demolding and drying to obtain a stone composite board.

[0016] Further: the various materials in the stone synthetic board are calculated by mass percentage as follows: 10%-15% calcium particles, 20%-25% cement, 30%-40% gravel, 20%-30% sand, and 3%-8% additives; wherein the calcium particles are set as calcium powder, the average diameter of the gravel is less than or equal to 5 mm, and the additives include plasticizers, fire retardants, waterproofing agents, and preservatives.

[0017] As a preferred embodiment of the present invention: the basic proportions of various materials of the stone synthetic board, calculated by mass percentage, include: 11% calcium particles, 22% cement, 31% stone, 30% sand, 6% additives, wherein the ratios of plasticizer, fire retardant, waterproofing agent and preservative are 2:1:4:3.

[0018] Based on the above scheme: the manufacturing of reinforced concrete thin plate specifically includes the following steps:

[0019] S21: manufacturing concrete; cement, gravel, sand and additive 2 are mixed with water according to a certain proportion to manufacture concrete;

[0020] S22: pouring concrete for the first time; pouring concrete into the mold until the height of the concrete reaches half of the height of the mold cavity;

[0021] S23: placing the steel bar structure; placing the steel bar structure into the mold, and immersing the lower part of the steel bar structure into the concrete;

[0022] S24: pouring concrete for the second time; then pouring concrete into the mold again to fill the mold with concrete, vibrating the concrete inside the mold, and smoothing the top of the concrete.

[0023] Preferably, the various materials in the reinforced concrete thin plate are calculated by mass percentage as follows: cement 25%-40%, gravel 20%-30%, sand 35%-50%, additive 2 5%-10%; wherein the average diameter of the gravel is less than or equal to 5 mm, and the additive 2 includes a water reducing agent, an early strength agent, a waterproofing agent, an antifreeze agent, a preservative and a rust inhibitor.

[0024] Furthermore: the basic proportions of various materials in the reinforced concrete thin plate are calculated by mass percentage, including: 30% cement, 25% gravel, 35% sand, and 10% additives; among which the ratios of water reducer, early strength agent, waterproofing agent, antifreeze agent, preservative and rust inhibitor are 2:2:1:5:1:1.

[0025] On the basis of the above-mentioned scheme: a plurality of transverse grooves are evenly spaced on the upper surface of the stone composite board and the upper surface of the reinforced concrete thin plate, and the hot-melt asphalt glue is filled in the transverse grooves.

[0026] As a preferred embodiment of the present invention, the manufacturing of the composite waterproof building substrate specifically comprises the following steps:

[0027] S31: cleaning the grooves; roughening the inner walls of the transverse grooves on the upper surface of the stone composite board and the upper surface of the reinforced concrete thin board, and then washing and drying;

[0028] S32: Glue dipping: immerse the upper surface of the stone composite board and the upper surface of the reinforced concrete thin board into the heated and melted hot-melt asphalt glue for 5 to 10 seconds;

[0029] S33: bonding; bonding the upper surface of the stone synthetic board and the upper surface of the reinforced concrete thin board by hot-melt asphalt adhesive, and then placing them horizontally and cooling them to obtain a composite waterproof building substrate.

[0030] Preferably, the manufacturing of the waterproof composite board specifically includes the following steps:

[0031] S41: slurrying; evenly applying mortar on the surface of the stone composite board of the composite waterproof building substrate and the side of the reinforced concrete thin board, and then drying;

[0032] S42: Painting; evenly apply waterproof paint on the dry mortar surface three to five times to form a waterproof paint layer to obtain a waterproof composite board.

[0033] The beneficial effects of the present invention are:

[0034] The method for preparing waterproof building materials uses asphalt glue with waterproof ability to bond a stone composite board with a waterproof reinforced concrete thin plate with waterproof ability, and then uses waterproof paint to make the produced waterproof composite board have high waterproof ability, while ensuring the fireproof performance and corrosion resistance of the waterproof composite board and the use effect of the waterproof composite board; and the reinforced concrete thin plate can fully guarantee the strength of the waterproof composite board. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 The present invention is a schematic diagram of the process for preparing the waterproof building material. DETAILED DESCRIPTION

[0036] The technical solution of the present invention is further described in detail below in conjunction with specific implementation methods.

[0037] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0038] A method for preparing a waterproof building material, such as Figure 1 As shown, the following steps are included:

[0039] S1: manufacturing a stone composite board; mixing calcium particles, cement, stone, sand and additives in proportion to form a stone mixed material, pouring the mixed material into a mold, pressing and molding, and obtaining a stone composite board.

[0040] The various materials in the gravel composite board are calculated by mass percentage, as follows: calcium particles 10% - 15%, cement 20% - 25%, gravel 30% - 40%, sand 20% - 30%, additives 3% - 8%; the basic proportions of various materials in the gravel composite board are calculated by mass percentage, including: calcium particles 11%, cement 22%, gravel 31%, sand 30%, and additives 6%.

[0041] The calcium particles are set to be calcium powder, i.e. limestone powder; the average diameter of the stones is less than or equal to 5 mm, ensuring the smoothness of the surface of the overall stone composite board; the additive one includes plasticizer, fire retardant, waterproof agent, and preservative, and the ratio of plasticizer, fire retardant, waterproof agent, and preservative is 2:1:4:3; the four additives can effectively improve the waterproof performance, fire resistance, corrosion resistance, hardness and molding speed of the stone composite board.

[0042] The length, width and height of the stone composite board are 50 cm, 50 cm and 5 cm respectively, and the bottom inner wall of the stone composite board mold is integrally formed with multiple horizontal bars, so that multiple horizontal grooves appear on the surface of the pressed stone composite board; after the pressed stone composite board is formed inside the mold, it is initially dried and then demolded with the horizontal groove side facing upward.

[0043] The manufacturing steps of stone composite board are as follows:

[0044] S11: manufacturing calcium gypsum; calcium particles and cement are mixed with water in a certain proportion to make calcium gypsum. The calcium gypsum is used as a binder to reduce the weight of the entire board;

[0045] S12: manufacturing a stone mixed material; mixing calcium gypsum, stone, and sand with water according to a proportion, and adding additives according to a proportion to manufacture a stone mixed material;

[0046] S13: Pressing and molding; pouring the stone mixed material into a mold, pressing and molding, and then demolding and drying to obtain a stone composite board.

[0047] S2: manufacturing reinforced concrete thin plates; cement, gravel, sand and additive 2 are mixed in proportion to form concrete, the concrete is poured into a mold for placing a steel bar structure, and naturally dried and formed to obtain reinforced concrete thin plates.

[0048] The various materials in the reinforced concrete thin plate are calculated by mass percentage, as follows: cement 25%-40%, gravel 20%-30%, sand 35%-50%, additives 25%-10%; the basic proportions of various materials in the reinforced concrete thin plate are calculated by mass percentage, including: cement 30%, gravel 25%, sand 35%, additives 20%.

[0049] The average diameter of the gravel is less than or equal to 5 mm, which can fully improve the surface smoothness of the reinforced concrete thin plate, thereby improving its waterproof ability; Additive 2 includes water reducing agent, early strength agent, waterproof agent, antifreeze agent, preservative and rust inhibitor, which can improve the strength, drying forming speed, corrosion resistance, waterproof performance and low temperature resistance of the reinforced concrete thin plate; the ratio of water reducing agent, early strength agent, waterproof agent, antifreeze agent, preservative and rust inhibitor is 2:2:1:5:1:1.

[0050] The length, width and height of the reinforced concrete slab are 50 cm, 50 cm and 8 cm respectively, and the bottom inner wall of the reinforced concrete slab mold is integrally formed with a plurality of horizontal bars, so that a plurality of horizontal grooves appear on the surface of the cast reinforced concrete slab; after the dry-formed stone composite board is initially formed inside the mold, it is demolded with the horizontal groove side facing upwards, and then cured until the reinforced concrete slab is completely stable.

[0051] The steel bar structure can be set to a mesh plate shape, which is formed by five equally spaced transverse steel bars and five equally spaced longitudinal steel bars fixed by wire tying. The diameter of the transverse and longitudinal steel bars is 5 mm and the length is 40 cm. The steel bar structure can also be set to a steel cage structure, which is formed by five steel bar frames with a length and width of 40 cm and 4 cm and ten steel bar ties with a length of 42 cm fixed by wire tying. The diameter of the steel bars and steel bar ties used in the steel bar frames is 4 mm. The ten steel bar ties are arranged into two groups, upper and lower, with five steel bars in each group arranged evenly spaced.

[0052] S21: manufacturing concrete; mixing cement, gravel, sand and additive 2 with water according to a certain proportion, and stirring and mixing them thoroughly to manufacture concrete;

[0053] S22: pouring concrete for the first time; pouring concrete into the mold so that the height of the concrete reaches half of the height of the inner cavity of the mold, and using a vibrating rod to perform preliminary vibration so that the concrete material is fully mixed inside the mold;

[0054] S23: placing the steel bar structure; placing the steel bar structure into the mold, and immersing the lower part of the steel bar structure into the concrete (the lower part of the steel cage structure is immersed in the concrete, and the mesh steel bar structure can be directly laid on the concrete. The strength improvement of the mesh steel bar structure for the reinforced concrete thin plate is weaker than that of the steel cage structure);

[0055] S24: pouring concrete for the second time; then pouring concrete into the mold again to fill the mold with concrete, and vibrating the concrete inside the mold to fully mix the concrete with the steel structure, and smoothing the top of the concrete.

[0056] S3: manufacturing a composite waterproof building substrate; bonding the gravel synthetic board and the reinforced concrete thin plate by hot-melt asphalt adhesive to obtain a composite waterproof building substrate.

[0057] S31: Groove cleaning: Use a chisel or other tools or machinery to roughen the inner wall of the horizontal groove on the upper surface of the stone composite board and the upper surface of the reinforced concrete thin board, then rinse with a high-pressure water gun to remove dust, and finally blow dry;

[0058] S32: Gluing; immersing the upper surface of the stone composite board and the upper surface of the reinforced concrete thin board into the heated and melted hot-melt asphalt adhesive for 5 to 10 seconds, so that the hot-melt asphalt adhesive is fully combined with the transverse grooves on the upper surface of the stone composite board and the upper surface of the reinforced concrete thin board;

[0059] S33: bonding; bonding the upper surface of the stone synthetic board and the upper surface of the reinforced concrete thin board by hot-melt asphalt adhesive, and then placing them horizontally and cooling them to obtain a composite waterproof building substrate.

[0060] S4: manufacturing a waterproof composite board; applying a building waterproof paint on the surface of the stone synthetic board of the composite waterproof building substrate and the side of the reinforced concrete thin board, and obtaining the waterproof composite board after drying.

[0061] S41: smearing; evenly apply mortar on the surface of the stone composite board of the composite waterproof building substrate and the side of the reinforced concrete thin board, and then dry it; the mortar is formed by mixing and stirring equal amounts of cement and small-grained river sand, water, waterproofing agent, and water reducing agent;

[0062] S42: Painting; Apply waterproof paint evenly on the dry mortar surface three to five times, let it dry completely after each application, and then apply paint again to eventually form a waterproof paint layer to obtain a waterproof composite board; the side not coated with mortar and waterproof paint is in direct contact with the building and can be used as building roof waterproofing materials and wall waterproofing materials.

[0063] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A method for preparing a waterproof building material, characterized in that: The following steps are involved: S1: manufacturing a stone composite board; mixing calcium particles, cement, stone, sand and additives in proportion to form a stone mixed material, pouring the mixed material into a mold, pressing and forming, and obtaining a stone composite board; S2: manufacturing reinforced concrete thin plates; cement, gravel, sand and additive 2 are mixed in proportion to form concrete, the concrete is poured into a mold for placing a steel bar structure, and naturally dried and formed to obtain reinforced concrete thin plates; S3: Manufacturing composite waterproof building substrate; The stone composite board and the reinforced concrete thin plate are bonded by hot-melt asphalt adhesive to obtain a composite waterproof building substrate; S4: manufacturing waterproof composite panels; The building waterproof paint is applied on the surface of the stone synthetic board of the composite waterproof building substrate and the side of the reinforced concrete thin board, and the waterproof composite board is obtained after drying.

2. A method for preparing a waterproof building material according to claim 1, characterized in that: The manufacturing of stone composite board specifically comprises the following steps: S11: manufacturing calcium gypsum; calcium particles and cement are mixed with water according to a certain proportion to manufacture calcium gypsum; S12: manufacturing a stone mixed material; mixing calcium gypsum, stone, and sand with water according to a proportion, and adding additives according to a proportion to manufacture a stone mixed material; S13: Pressing and molding; pouring the stone mixed material into a mold, pressing and molding, and then demolding and drying to obtain a stone composite board.

3. A method for preparing a waterproof building material according to claim 1, characterized in that: The various materials in the stone synthetic board are calculated by weight percentage as follows: 10%-15% calcium particles, 20%-25% cement, 30%-40% gravel, 20%-30% sand, and 3%-8% additives; wherein the calcium particles are set as calcium powder, the average diameter of the gravel is less than or equal to 5 mm, and the additives include plasticizers, fire retardants, waterproofing agents, and preservatives.

4. A method for preparing a waterproof building material according to claim 3, characterized in that: The basic proportions of various materials of the stone composite board are calculated by mass percentage, including: 11% calcium particles, 22% cement, 31% stone, 30% sand, 6% additives, among which the proportions of plasticizer, fire retardant, waterproofing agent and preservative are 2:1:4:

3.

5. A method for preparing a waterproof building material according to claim 1, characterized in that: The manufacturing of the reinforced concrete thin plate specifically comprises the following steps: S21: manufacturing concrete; cement, gravel, sand and additive 2 are mixed with water according to a certain proportion to manufacture concrete; S22: pouring concrete for the first time; pouring concrete into the mold until the height of the concrete reaches half of the height of the mold cavity; S23: placing the steel bar structure; placing the steel bar structure into the mold, and immersing the lower part of the steel bar structure into the concrete; S24: pouring concrete for the second time; then pouring concrete into the mold again to fill the mold with concrete, vibrating the concrete inside the mold, and smoothing the top of the concrete.

6. A method for preparing a waterproof building material according to claim 4, characterized in that: The various materials in the reinforced concrete thin plate are calculated by weight percentage as follows: cement 25%-40%, gravel 20%-30%, sand 35%-50%, additive 2 5%-10%; wherein the average diameter of the gravel is less than or equal to 5 mm, and the additive 2 includes a water reducing agent, an early strength agent, a waterproofing agent, an antifreeze agent, a preservative and a rust inhibitor.

7. A method for preparing a waterproof building material according to claim 6, characterized in that: The basic proportions of various materials in the reinforced concrete thin plate are calculated by mass percentage, including: 30% cement, 25% gravel, 35% sand, and 10% additives; among which the ratios of water reducer, early strength agent, waterproofing agent, antifreeze agent, preservative and rust inhibitor are 2:2:1:5:1:

1.

8. A method for preparing a waterproof building material according to claim 1, characterized in that: The upper surface of the stone composite board and the upper surface of the reinforced concrete thin plate are both provided with a plurality of transverse grooves at equal intervals, and the hot-melt asphalt adhesive is filled in the transverse grooves.

9. A method for preparing a waterproof building material according to claim 1, characterized in that: The manufacturing of the composite waterproof building substrate specifically comprises the following steps: S31: cleaning the grooves; roughening the inner walls of the transverse grooves on the upper surface of the stone composite board and the upper surface of the reinforced concrete thin board, and then washing and drying; S32: Glue dipping: immerse the upper surface of the stone composite board and the upper surface of the reinforced concrete thin board into the heated and melted hot-melt asphalt glue for 5 to 10 seconds; S33: bonding; bonding the upper surface of the stone synthetic board and the upper surface of the reinforced concrete thin board by hot-melt asphalt adhesive, and then placing them horizontally and cooling them to obtain a composite waterproof building substrate.

10. A method for preparing a waterproof building material according to claim 1, characterized in that: The manufacturing of the waterproof composite board specifically comprises the following steps: S41: slurrying; evenly applying mortar on the surface of the stone composite board of the composite waterproof building substrate and the side of the reinforced concrete thin board, and then drying; S42: Painting; evenly apply waterproof paint on the dry mortar surface three to five times to form a waterproof paint layer to obtain a waterproof composite board.

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