A method for recycling construction waste

Abstract

The invention discloses a building waste recycling method. The method is characterized by including the following steps: removing iron waste through magnetic separation after the building waste is smashed; removing dirt and light substances through washing with water; screening so as to obtain fine waste particles with the particle size range of 0-5 mm and coarse waste particles with the particle size ranges of 5-8 mm, 8-12 mm and 12-25 mm; meanwhile, collecting dust generated during the waste smashing process to obtain dust waste particles with the particle size range of 0.3 mm or below; using the powder materials, fine materials and corresponding type of coarse materials as brick-making raw materials, adding cement and water according to the ratio requirement, and mixing and stirring to prepare cement bricks which use the building waste as main raw materials. According to the method provided by the invention, the building waste is recycled and used for making bricks, so that waste is changed into things of value and environment friendliness and energy conservation are realized; besides, the method has the advantages that the treatment efficiency is high, and the quality of the prepared bricks is good.

Description

technical field [0001] The invention relates to a technology for processing construction waste, in particular to a method for recycling and utilizing construction waste. Background technique [0002] Construction waste refers to construction and construction units or individuals disposing of various buildings, structures, Pipe Network generated in the process of construction, laying or demolition, repair, etc. muck , spoil , discarded materials, sludge and other wastes. Usually, construction waste is mainly broken waste bricks, mixed with some reinforced iron pieces and abandoned wood pieces. [0003] With the acceleration of the development of modern urbanization, more and more construction waste is generated in the process of urban construction. The common way to deal with construction waste is to transport it to the garbage dump for landfill. Accumulation in the open air leads to occupying land area and causing pollution. As a result, construction waste was once co...

AI Technical Summary

Problems solved by technology

[0003] With the acceleration of the development of modern urbanization, more and more construction waste is generated in the process of urban construction. The common way to deal with construction waste is to transport it to the garbage dump for landfill. Stacking in the open air, resulting in occupying land area and causing pollution

As a result, construction waste was once considered a burden in urban development. Many cities have been surrounded by waste, which not only pollutes the environment, but also brings great troubles to people's normal life.

[0004] In the past, most of the bricks used in construction were fired from excavated clay, which caused soil desertification. With the strengthening and guidance of land protection policies, the existing brick-making technology needs to consider other sources of raw materials

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