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Method for preparing porous non-fired product by using solid waste

A technology of solid waste and products, which is applied in the field of preparation of non-fired products, can solve problems such as poor performance, and achieve high utilization rate, enhanced crack resistance, and good durability

Inactive Publication Date: 2015-05-06
QIQIHAR YUEFENG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the certain activity of fly ash and slag, people try to use them as building materials, but the performance is not good.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0008] A method for preparing porous unfired products from solid waste, characterized in that: cement, fly ash or slag, gypsum, quartz sand, straw, sodium silicate, water, polypropylene fiber, foaming agent, reducing Water formulation, the above-mentioned raw materials are 8 parts, 65 parts, 15 parts, 25 parts, 5 parts, 8 parts, 8 parts, 2 parts, 0.1, 0.05 parts by weight, and the length of the straw is 2-5mm. Stir evenly, and then vibrate and extrude in the mold to make bricks. After steam curing for 48 hours, place them outdoors at room temperature for 10 days to get the finished product.

Embodiment 2

[0010] A method for preparing porous unfired products from solid waste, characterized in that: cement, fly ash or slag, gypsum, quartz sand, straw, sodium silicate, water, polypropylene fiber, foaming agent, reducing Water formulation, the above-mentioned raw materials are 10 parts, 50 parts, 10 parts, 20 parts, 8 parts, 6 parts, 7 parts, 2 parts, 0.1 parts, 0.05 parts by weight, and the length of the straw is 2-5mm. After mixing and stirring evenly, it is vibrated and extruded in the mold to make adobe. After steam curing for 48 hours, it is placed outdoors at room temperature for 10 days to obtain the finished product.

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PUM

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Abstract

The invention relates to a method for preparing a porous non-fired product by using solid waste. The method is simple in process, and high in utilization rate of solid waste. The non-fired product is light in weight, good in strength, excellent in durability, relatively small in energy consumption, and free from pollution to the environment; raw materials comprise cement, pulverized fuel ash or slag and gypsum, are uniformly mixed and stirred, moulded in a mold, and outdoors placed for 10-15 days after being cured by using steam to obtain the finished porous non-fired product.

Description

technical field [0001] The invention relates to a preparation method of an unfired product, in particular to a method for preparing an unfired product by using waste fly ash or slag. Background technique [0002] There is a large amount of waste fly ash and slag in my country every year, mainly from power plants and mining areas. In recent years, fly ash has only been used as fertilizer in a small amount, while a large amount of slag has been buried or stacked naturally, causing great damage to the environment. However, due to their certain activity, fly ash and slag have been tried to be used as building materials, but the performance is not good. The use of fly ash and slag to prepare non-fired products can not only reduce the burden on the environment, but also turn waste into treasure and save natural resources. At the same time, the non-fired products made of them have excellent thermal insulation and heat insulation. Contents of the invention [0003] The object of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/26C04B38/02C04B18/08C04B18/14
CPCY02W30/91
Inventor 梁坐红
Owner QIQIHAR YUEFENG TECH