Sintered coal slag-containing water-permeable brick and production method thereof

Abstract

The invention relates to a sintered coal slag-containing water-permeable brick and a production method thereof, and aims to solve the technical problems that the conventional water-permeable brick ishigh in production cost, poor in water permeability and low in environmental benefit. The invention adopts the technical scheme as follows: the sintered coal slag-containing water-permeable brick comprises the following raw materials in parts by weight: 37-59 parts of coal slag, 17-40 parts of bentonite, 2-4 parts of glass powder, 2-4 parts of bauxite, 3-7 parts of rice straw and 12-13 parts of water. The invention has the beneficial effects as follows: the coal slag is used as a main raw material for replacing clay, so that use of the clay is reduced and the environment is protected while theutilization efficiency of the coal slag resource is improved; by virtue of the characteristic that the coal slag has a high heating value, the coal slag is used as internal fuel in the sintering process, so that the amount of external fuel is reduced and energy is saved; by virtue of the function of the coal slag as a pore-forming agent, an extra high-temperature pore-forming agent is not required, the porosity of the water-permeable brick is increased, the water permeability of the water-permeable brick is improved, and the production cost of the water-permeable brick is reduced.

Description

technical field [0001] The invention belongs to the field of building materials, in particular to a sintered coal-fired slag permeable brick and a production method thereof. Background technique [0002] In order to alleviate urban waterlogging and ecological environment problems caused by modern urban construction, my country has proposed the construction concept of "sponge city". As an integral part of the "sponge city" construction, permeable pavement puts forward higher requirements on the performance of permeable bricks used in permeable pavement structures, and further increases the demand for permeable bricks. The water permeability of permeable bricks comes from the pores and permeable channels contained in them. By increasing the porosity of permeable bricks and building rich permeable channels, the water permeability of permeable bricks can be effectively improved. [0003] Coal-fired slag is a solid waste produced during the combustion of coal by power plant boil...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the technical problems of high production cost, poor water permeability and low environmental benefit of existing permeable bricks, and provide a kind of sintered coal-fired slag permeable brick and its production method

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