Energy-saving sintering water-permeable brick adding with coal residues

Abstract

The invention discloses an energy-saving sintering water-permeable brick adding with coal residues. The energy-saving sintering water-permeable brick adding with the coal residues is prepared from, by weight, 40-43 parts of sludge of sewage treatment plants, 6-7 parts of rice husks, 4-5 parts of potash feldspar powder, 10-12 parts of fly ash, 10-12 parts of water glass, 3-4 parts of calcium fluoride, 5-6 parts of glycerin, 18-20 parts of shale, 14-16 parts of coal residues, 2.5-3.5 parts of coke powder, 1.5-2 parts of paraffin, 9-11 parts of alumina-chrome slags and 5-6 parts of calcium carbonate. According to the energy-saving sintering water-permeable brick adding with the coal residues, treated coal residue and shale mixed coarse aggregate is added, the plasticity index of a brick body can be increased, a green brick is made to be denser, and the strength and durability of the green brick are improved. According to the water-permeable brick prepared through sintering, the combustible feature of the coal residues can be utilized, coal resources are saved, and the brick is friendly to the environment; meanwhile, the energy-saving sintering water-permeable brick adding with the coal residues is good in durability, high in permeation coefficient and capable of saving energy and protecting the environment.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to an energy-saving sintered permeable brick added with coal gangue. Background technique [0002] Sponge city refers to a city that can be like a sponge and has good "elasticity" in adapting to environmental changes and responding to natural disasters. use. In the process of sponge city construction, the systematic nature of natural precipitation, surface water and groundwater should be coordinated, water supply, drainage and other water recycling links should be coordinated, and its complexity and long-term nature should be considered. As we all know, most of the existing urban street pavements are paved with impermeable materials such as cement concrete, asphalt, stone, and ceramic tiles. This hardened pavement is no longer suitable for the trend of building sponge city pavements. [0003] Permeable bricks have good water permeability and moisturizing properties, whi...

AI Technical Summary

Problems solved by technology

Stacking coal gangue not only takes up a lot of land, but also pollutes the environment and affects people's life and health

In addition, the spontaneous combustion of coal gangue can release a variety of harmful gases, etc., accompanied by a large amount of smoke and dust and the risk of explosion.