Tailings straw light wall brick

A light-body and wall-brick technology, applied in the field of tailings straw light-body wall bricks, can solve problems such as environmental damage, achieve the effects of stable quality, convenient use, and guaranteeing building construction requirements

Inactive Publication Date: 2012-04-11
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of this invention is to develop a low-cost wall brick using renewable materials and industrial waste to replace traditional clay bricks, cement blocks and other wall materials, and to solve the large-scale damage to the environment caused by these materials in the production process And other issues

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] First, the water reducer is formulated into a solution; 10 parts by weight of straw powder with a diameter of no more than 1mm, 30 parts by weight of Portland cement, 45 parts by weight of tailing sand, 2 parts by weight of acrylic resin, trisodium phosphate chloride 2 parts by weight are stirred evenly to form a solid mixture; 3 parts by weight of the solution prepared by the water reducing agent are added to the obtained solid mixture and fully stirred, wherein the naphthalenesulfonic acid formaldehyde condensate in the 3 parts by weight of the water reducing agent is 17 %, 39% magnesium chloride and 44% calcium chloride, gradually add the minimum amount of water to ensure the fluidity of the mixture during the stirring process; then extruded by brick making machine, demolded, and form tailings after drying Straw lightweight wall brick.

Embodiment 2

[0023] First, the water reducer is formulated into a solution; 12 parts by weight of straw powder with a diameter of no more than 1mm, 32 parts by weight of Portland cement, 40 parts by weight of tailing sand, 1 part by weight of acrylic resin, trisodium phosphate chloride 1 part by weight is stirred evenly to form a solid mixture; the solution prepared by the water reducer is added to the obtained solid mixture and fully stirred, wherein the naphthalenesulfonic acid formaldehyde condensate in 2.5 parts by weight of the water reducer is 34%, magnesium chloride is 34% and 32% calcium chloride, gradually add the minimum amount of water to ensure that the mixture can achieve fluidity during the stirring process; then extruded by brick making machine, demoulded, and dried to form tailings straw light body wall brick .

Embodiment 3

[0025] First, the water reducer is formulated into a solution; 15 parts by weight of straw powder with a diameter of no more than 1 mm, 35 parts by weight of Portland cement, 50 parts by weight of tailing sand, 1.5 parts by weight of acrylic resin, trisodium phosphate chloride 1.5 parts by weight are stirred evenly to form a solid mixture; the solution prepared by the water reducer is added to the obtained solid mixture and fully stirred, wherein the naphthalenesulfonic acid formaldehyde condensate in 2 parts by weight of the water reducer is 30%, magnesium chloride is 48% and 22% calcium chloride, gradually add the minimum amount of water to ensure the fluidity of the mixture during the stirring process; then extrude and demould by brick making machine, and form tailings straw light body wall after drying brick.

[0026] The dimensions of the tailings straw lightweight wall bricks in the above examples are all 0.08m×0.08m×0.15m. After testing, the tailings straw light wall br...

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Abstract

The invention relates to a tailings straw light wall brick, which contains the following constituents in parts by weight: 10-15 parts of straw powder with diameter of not more than 1mm, 40-50 parts of tailings sand, 30-35 parts of portland cement, 1-2 parts of acrylic resin and 1-2 parts of trisodium phosphate chlorinated. The light wall brick is formed by the following steps of: uniformly mixing the constituents in parts by weight to form solid mixture; preparing 2-3 parts of water reducing agent into solution, adding to the solid mixture for fully stirring, and gradually adding water in stirring process to form paste; extrusion forming and de-molding by a brick making machine; and drying. The straw powder used by the invention is renewable resource, and an effective way can be provided for solving the problems on tailings space occupation, environment pollution and the like resulted from metal mining process by using the tailing sand; and the wall brick is convenient in practical use and stable in quality, and can ensure building construction requirements and comply with concept of circular economy.

Description

technical field [0001] The invention relates to a tailings straw light wall brick, in particular to a light wall brick that can simultaneously utilize renewable materials and industrial waste. Background technique [0002] According to the data released by the National Bureau of Statistics, my country's urbanization rate has reached 45.68% in 2008. This trend will continue to rise steadily in the next 20 years. It can be predicted that China's urbanization rate will exceed 60% in 2030. It is close to 70%, which means that a large number of people will influx from rural areas to cities. In the process, a large number of new buildings need to be built to meet people's living needs. However, the environmental carrying capacity of many large cities in China is close to the upper limit. It is impossible for the population in rural areas to continue to concentrate in large cities, but a considerable number of people still live in towns or small county towns, and their architectural ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04
Inventor 杨旭东单明于涛
Owner TSINGHUA UNIV
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