Self-levelling material and preparation method thereof

A self-leveling and raw material technology, applied in the field of building materials, can solve the problems of low elasticity of single-component materials, inconvenient use and transportation, and corrosion of iron products, so as to achieve stable quality, easy construction in a planned way, and reduce structure Load bearing effect

Inactive Publication Date: 2011-08-03
CHINA ACAD OF BUILDING RES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Self-leveling materials are usually divided into organic and inorganic. Organic self-leveling materials mainly include epoxy resin self-leveling materials, which have superior performance but high prices and high construction requirements. They are mainly used in special occasions. Inorganic self-leveling materials can be divided into It is a gypsum-based self-leveling material and a cement-based self-leveling material. Due to poor water resistance, the acidity of the gypsum-based self-leveling material has a rusting effect on iron produc

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The present invention provides a self-leveling material, including ordinary Portland cement, high alumina cement, quartz sand, anhydrite, heavy calcium, cellulose ether, lithium carbonate, tartaric acid, latex powder and polycarboxylic acid water reducer, each of the above The weight ratio of the raw materials is: ordinary Portland cement 250g, high alumina cement 20g, quartz sand 450g, anhydrite 40g, heavy calcium 100g, lithium carbonate 0.1g, tartaric acid 0.1g, cellulose ether 0.5g, latex powder 5g , Polycarboxylic acid water reducing agent 1g. Among them, ordinary Portland cement uses cement with strength grade 42.5, high alumina cement uses cement with strength grade above 52.5, quartz sand fineness is controlled within 40-70 mesh, anhydrite uses natural anhydrite powder, heavy calcium fineness is 200 -500 meshes, lithium carbonate and tartaric acid are industrial products supplied on the market, cellulose ethers are low-viscosity products with a viscosity of 300-50...

Embodiment 2

[0025] The present invention provides a self-leveling material, including ordinary Portland cement, high alumina cement, quartz sand, anhydrite, heavy calcium, cellulose ether, lithium carbonate, tartaric acid, latex powder and polycarboxylic acid water reducer, each of the above The weight ratio range of raw materials is: ordinary Portland cement 260~290g, high alumina cement 40~70g, quartz sand 460~480g, anhydrite 45~55g, heavy calcium 105~115g, lithium carbonate 0.3~0.8g, tartaric acid 0.4-0.7g, 0.5-1.5g of cellulose ether, 10-25g of latex powder, 1.1-1.4g of polycarboxylic acid water reducing agent. Among them, ordinary Portland cement uses cement with strength grade 42.5, high alumina cement uses cement with strength grade above 52.5, quartz sand fineness is controlled within 40-70 mesh, anhydrite uses natural anhydrite powder, heavy calcium fineness is 200 -500 meshes, lithium carbonate and tartaric acid are industrial products supplied on the market, cellulose ethers are...

Embodiment 3

[0028] The present invention provides a self-leveling material, including ordinary Portland cement, high alumina cement, quartz sand, anhydrite, heavy calcium, cellulose ether, lithium carbonate, tartaric acid, latex powder and polycarboxylic acid water reducer, each of the above The weight ratio of raw materials is: ordinary Portland cement 270g, high alumina cement 50g, quartz sand 470g, anhydrite 50g, heavy calcium 110g, lithium carbonate 0.5g, tartaric acid 0.5g, cellulose ether 1g, latex powder 20g, Polycarboxylic acid water reducing agent 1.2g. Among them, ordinary Portland cement uses cement with strength grade 42.5, high alumina cement uses cement with strength grade above 52.5, quartz sand fineness is controlled within 40-70 mesh, anhydrite uses natural anhydrite powder, heavy calcium fineness is 200 -500 meshes, lithium carbonate and tartaric acid are industrial products supplied on the market, cellulose ethers are low-viscosity products (viscosity values ​​are 300-50...

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Abstract

The invention provides a self-levelling material, which comprises the following components by weight: 250 to 300 grams of ordinary Portland cement, 20 to 100 grams of high-alumina cement, 450 to 500 grams of quartz sand, 40 to 60 grams of anhydrite, 100 to 120 grams of ground calcium carbonate, 0.1 to 1 gram of lithium carbonate, 0.1 to 1 gram of tartaric acid, 0.5 to 1.5 grams of cellulose ether, 5 to 30 grams of latex powder and 1 to 1.5 grams of polycarboxylate water reducer. A preparation method comprises the following steps of: adding the ordinary Portland cement, the high-alumina cement and the quartz sand, stirring uniformly, adding the anhydrite, the ground calcium carbonate, the lithium carbonate, the tartaric acid, the cellulose ether, the latex powder and the polycarboxylate water reducer sequentially, and stirring fully and uniformly. The self-levelling material has high self-levelling performance, stable quality and high construction effect and is easy to construct and manage, and the construction is easy to perform designedly.

Description

Technical field [0001] The invention belongs to the field of building materials, in particular to a self-leveling material and a preparation method thereof. Background technique [0002] The ground self-leveling material is a reform of the traditional ground material. Its use can effectively solve the problems of uneven ground, sanding, pitting, damage and other problems in the construction of the project. It can also be used for repairing old ground such as broken and sanding. . [0003] Self-leveling materials are usually divided into organic and inorganic types. Organic self-leveling materials mainly include epoxy resin self-leveling materials, which have superior performance but high price and high construction requirements. They are mainly used in special occasions. Inorganic self-leveling materials can be divided into It is a gypsum-based self-leveling material and a cement-based self-leveling material. The gypsum-based self-leveling material has poor water resistance and it...

Claims

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Application Information

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IPC IPC(8): C04B28/14
CPCC04B28/16
Inventor 薛庆张仁瑜
Owner CHINA ACAD OF BUILDING RES
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