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A hydrophobic building material and a construction method of waterproof roofs

A technology of building materials and construction methods, which is applied to roofs, buildings, and roofs using sealed aggregates. It can solve the problems of easy water seepage on the roof, backward construction technology, and reduced service life of the slope layer, so as to prevent water from seeping into the roof. Internal, improve market competitiveness, improve the effect of service life

Inactive Publication Date: 2014-11-26
BEIJING ACAD OF BUILDING ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, several conventional slope finding materials in the above slope finding construction methods, such as ceramsite and other raw materials, are difficult to purchase, and the overall cost is relatively high; and the construction technology is relatively backward, and the construction process is complicated; The roof is prone to quality defects such as water seepage and water channeling, and at the same time, the life of the slope-finding layer will be reduced; in addition, too many materials are used in the slope-finding layer, resulting in a large capacity of the slope-finding layer and increasing the load on the roof; In addition, the thermal conductivity of the materials in the slope-finding layer is large, which reduces the thermal insulation performance of the slope-finding layer; the above phenomenon is common in the industry and has become an urgent problem to be solved

Method used

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  • A hydrophobic building material and a construction method of waterproof roofs
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  • A hydrophobic building material and a construction method of waterproof roofs

Examples

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Embodiment 1

[0042] In some embodiments of the present invention, the hydrophobic building material includes: cement, aggregate, waterproof gel and water;

[0043]Wherein, the waterproof gel includes: vegetable oil: 16wt%; stearic acid: 7wt%; basic compound: 8wt%; melamine: 8.5wt%; aluminum sulfate: 5wt%; sodium silicate: 8wt%; polyvinyl alcohol : 6.8wt%; tributyl phosphate: 0.7wt%; water: 40%; wherein, the vegetable oil is palm oil, and the basic compound is potassium hydroxide.

[0044] The waterproof gel is prepared by the following preparation method, and its specific steps are:

[0045] 1. Weigh 40g of water, 16g of palm oil and 7g of stearic acid in a reactor, heat to 70°C, stir for 30 minutes, and the stirring rate is 60 rpm;

[0046] 2. On the basis of step 1, weigh 8g of potassium hydroxide into the reactor, heat and stir at 75°C for 30 minutes, and the stirring rate is 80 rpm;

[0047] 3. On the basis of step 2, weigh 8.5g of melamine, 5g of aluminum sulfate and 6.8g of polyvin...

Embodiment 2

[0052] In some embodiments of the present invention, the hydrophobic building material includes: cement, aggregate, waterproof gel and water;

[0053] Wherein, the waterproof gel includes: vegetable oil: 17wt%; stearic acid: 8wt%; basic compound: 10wt%; melamine: 8wt%; aluminum sulfate: 5.5wt%; sodium silicate: 6wt%; polyvinyl alcohol : 6.5wt%; tributyl phosphate: 1wt%; water: 38%; wherein, the vegetable oil is coconut oil, and the basic compound is ammonia water.

[0054] The waterproof gel is prepared by the following preparation method, and its specific steps are:

[0055] 1. Weigh 38g of water, 17g of coconut oil and 8g of stearic acid in a reactor, heat to 70°C, stir for 30 minutes, and the stirring speed is 60 rpm;

[0056] 2. On the basis of step 1, weigh 10g of ammonia water into the reactor, heat and stir at 75°C for 30 minutes, and the stirring rate is 80 rpm;

[0057] 3. On the basis of step 2, weigh 8g of melamine, 5.5g of aluminum sulfate and 6.5g of polyvinyl a...

Embodiment 3

[0061] In some embodiments of the present invention, the hydrophobic building material includes: cement, aggregate, waterproof gel and water;

[0062] Wherein, the waterproof gel includes: vegetable oil: 20wt%; stearic acid: 5wt%; basic compound: 8wt%; melamine: 9.6wt%; aluminum sulfate: 5.8wt%; Vinyl alcohol: 5.5wt%; tributyl phosphate: 0.8wt%; water: 40%; wherein, the vegetable oil is coconut oil, and the alkaline compound is sodium hydroxide.

[0063] The waterproof gel is prepared by the following preparation method, and its specific steps are:

[0064] 1. Weigh 40g of water, 20g of coconut oil and 5g of stearic acid in a reactor, heat to 75°C, stir for 30 minutes, and the stirring rate is 60 rpm;

[0065] 2. On the basis of step 1, weigh 8g of sodium hydroxide into the reactor, heat and stir at 75°C for 30 minutes, and the stirring rate is 80 rpm;

[0066] 3. On the basis of step 2, weigh 9.6g of melamine, 5.8g of aluminum sulfate and 5.5g of polyvinyl alcohol into the ...

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Abstract

A hydrophobic building material and a construction method of waterproof roofs are provided. The hydrophobic building material comprises cement, aggregate, waterproof gel and water in a weight ratio of 1:1.5-3:0.01-0.02:1.5-2.5. The aggregate allows the hydrophobic building material to have better heat insulating ability. The materials used are cheaper, thus reducing the product production cost and enhancing the market competitiveness of the product. By adding the waterproof gel into the building material, adhesion among all the materials is firmer and more reliable. The waterproofness of the waterproof gel effectively prevents water penetration into the roofs when the building material is used, and prolongs the service lifetime of a slope-making layer. In addition, the unit weight of the materials used is lower, and the pressure on the roofs is smaller.

Description

technical field [0001] The invention relates to the technical field of waterproof building materials, more specifically, to a hydrophobic building material and a construction method for waterproof roofing using the hydrophobic building material. Background technique [0002] In order to achieve the purpose of removing rainwater from the roof of the flat roof of the construction project, the method of finding a slope is often used to form the roof slope, that is, a layer such as slag (and / or cinder), ceramsite, slag concrete, and aerated concrete is laid on the horizontal roof panel. Lightweight materials such as crushed materials and ceramsite concrete form the slope layer to achieve the purpose of heat preservation, drainage and waterproofing of the roof. [0003] However, several conventional slope finding materials in the above slope finding construction methods, such as ceramsite and other raw materials, are difficult to purchase, and the overall cost is relatively high;...

Claims

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Application Information

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IPC IPC(8): C04B28/04C04B28/06C04B28/32C04B24/26E04D7/00
Inventor 赖振峰吴敬朋王万金贺奎夏义兵王靖
Owner BEIJING ACAD OF BUILDING ENG