Self-cleaning water permeable brick capable of adsorbing automobile exhaust and manufacturing method thereof

Abstract

The invention discloses a self-cleaning water permeable brick capable of adsorbing automobile exhaust. Corn cobs are ground at room temperature after being carbonized, the surfaces of pores adsorb a photocatalytic material nanometer titanium dioxide, and hydroxyl free radicals, super-oxygen ion free radicals and H2O free radicals are generated under light irradiation, have high oxidation and decomposition abilities, directly oxidize organic matter into inorganic micromolecules such as CO2 and H2O, are applied to the water permeable brick, can degrade the automobile exhaust in atmosphere, and have high adsorbability. The water permeable brick manufactured by sintering modified sugar filter mud serving as a pore-forming agent and montmorillonoid and desert serving as aggregate at high temperature is large in porosity, good in adsorbability and high in water permeability, the brick surface can absorb about 35% of the surface water, underground water is evaporated on sunny days, the ground temperature can be lowered, the content of pollutants like PM2.5 in road surface air is reduced, the double effects of water permeating and purifying are achieved, and the application prospect is wide.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a self-cleaning permeable brick capable of absorbing automobile exhaust and a manufacturing method thereof. Background technique [0002] With the continuous shortage of urban water resources and the pursuit of humanization of the urban environment, the research and development of permeable bricks has attracted extensive attention from experts in materials, environment and municipal engineering. Permeable bricks have good water permeability and moisture retention, which can well alleviate the "urban desertification" and "heat island effect" caused by the city being covered by non-permeable ground pavement. It can also alleviate urban waterlogging to a certain extent and replenish urban groundwater. , regulate the urban environment, and help maintain the urban water balance. Existing permeable bricks are developing towards high density and high strength, and their comp...

AI Technical Summary

Problems solved by technology

Existing permeable bricks are developing towards high density and high strength, and their compressive strength is relatively high, but there are still many defects. On the one hand, the water permeability is very poor. Even if there are bricks with good water permeability, their compressive strength can reach It does not meet the pavement requirements. At the same time, after long-term use of permeable bricks, the surface and pores are easy to fall into various dirt to form blockages and cannot be automatically cleared, which weakens the permeable effect, poor ecological effect, and the requirements for drainage facilities during use. Higher, if the drainage is not smooth after the rain, it is easy to cause water accumulation

On the other hand, the function of the permeable bricks produced by the existing technology is relatively single. They simply allow precipitation to penetrate into the ground through the brick body, and cannot effectively remove the pollutants contained in the water, and cannot purify the sewage that passes through the brick body.