Baking-free brick with waste rubber and coal ash as major raw materials

A technology of waste rubber and main raw materials, applied in the field of building wall materials, to achieve the effect of strong market competitiveness, low investment, good toughness and elasticity

Active Publication Date: 2013-03-20
河南盖森材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So as to deal with the current solid waste such as waste tires and fly ash

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Take 3kg of waste rubber particles, add 40kg of fly ash, 25kg of yellow sand, then add 5kg of cement, 12kg of calcium oxide and 4kg of calcium sulfate, add 1.5kg of sodium sulfate, 1.5kg of sodium hydroxide, 0.05kg of sodium metaaluminate, and finally add 8kg of water And mix well to make it moist. Use a non-burning brick forming machine to press and shape the non-burning brick adobe under a pressure of 20~25Mpa, and dry it naturally for 4 weeks. Then heat treatment at 150°C for 5 hours in a heating furnace, and after cooling, the waste rubber fly ash unburned brick can be obtained. After inspection, the compressive strength of a single piece is 12.7Mpa, and the flexural strength is 3.5Mpa.

Embodiment 2

[0017] Take 5kg of waste rubber granules, add 35kg of fly ash, 22kg of yellow sand, 7kg of cement, 10kg of calcium oxide and 3kg of calcium sulfate, add 1kg of sodium sulfate, 2kg of sodium hydroxide, 0.03kg of sodium metaaluminate, and add 15kg of water for thorough mixing Make it moist. Use a non-burning brick forming machine to press and shape the non-burning brick adobe under a pressure of 20~25Mpa, and dry it naturally for 4 weeks. Then heat treatment at 180°C for 4 hours in a heating furnace, and after cooling, the waste rubber fly ash unburned brick can be obtained. After inspection, the compressive strength of a single block is 12.1Mpa, and the flexural strength is 3.3Mpa.

Embodiment 3

[0019] Take 6kg of waste rubber particles, add 36kg of fly ash, 20kg of yellow sand, 10kg of cement, 10kg of calcium oxide and 3kg of calcium sulfate, add 1kg of sodium sulfate, 1.5kg of sodium hydroxide, 0.03kg of sodium metaaluminate, and add 13kg of water to fully Mix until moist. Use a non-burning brick forming machine to press and shape the unburned brick adobe under a pressure of 20-25Mpa, and dry it naturally for 4 weeks. Then heat treatment at 200°C for 3 hours in a heating furnace, and after cooling, the waste rubber fly ash unburned brick can be obtained. After inspection and testing, the compressive strength of a single block is 13.3Mpa, and the flexural strength is 3.8Mpa.

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Abstract

The invention discloses a baking-free brick with waste rubber and coal ash as major raw materials. The baking-free brick is composed of the following raw materials in parts by weight: 3-10 parts of waste rubber, 30-45 parts of coal ash, 20-25 parts of yellow sand, 5-10 parts of cement, 10-15 parts of calcium oxide, 3-5 parts of calcium sulfate, 1-2 parts of sodium sulfate, 1.5-2 parts of sodium hydroxide, 0.01-0.05 parts of sodium metaaluminate and 8-15 parts of water. The baking-free brick has the advantages that (1) the major problems that the coal ash baking-free brick is high in water absorption and poor in resistance to freezing and thawing resistance are solved, and the application field and region of the coal-ash baking-free brick are greatly expanded; (2) the production process is simple, the investment is low, the cost is low, the benefit is good, the market competitiveness is strong and the capacity of the market is great; and (3) the solid wastes such as waste tire and coal ash are used for making bricks instead of the traditional clay bricks, so that the baking-free brick is a green novel building material and is an important development project in China.

Description

technical field [0001] The invention relates to a building wall material, in particular to an unfired brick made from waste rubber and fly ash as main raw materials. Background technique [0002] Waste rubber is a kind of industrial solid waste. With the rapid development of the rubber industry and the automobile industry, a large number of waste tire rubber products and scraps continue to increase, resulting in huge environmental pressure. In December 2010, the Ministry of Industry and Information Technology of my country issued the "Guiding Opinions on the Comprehensive Utilization of Waste Tires". In December 2011, the National Development and Reform Commission included waste tires in the "Twelfth Five-Year Plan" in the "Guiding Opinions on Comprehensive Utilization of Resources". Recycling focus areas. However, the retreading rate, recycling rate and utilization rate of waste tires in my country are at a relatively low level. [0003] As the main solid waste discharged...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B18/22
CPCY02W30/91
Inventor 张海波管学茂李启强李明远芦昊
Owner 河南盖森材料科技有限公司
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