Ferronickel slag self-cleaning water permeable brick and manufacturing method thereof

Abstract

The invention discloses a ferronickel slag self-cleaning water permeable brick. A manufacturing method comprises the steps that corn husks are ground at indoor temperature after being carbonized, photocatalytic material nanometer titania is adsorbed to pore surfaces, hydroxyl radical, super-oxygen ion free radical and H2O free radical which are generated through light irradiation have the strong oxidation and decomposition capability, and various kinds of organic matter are directly oxidized into CO2, H2O and other inorganic micromolecules to be applied to the water permeable brick, so that automobile exhaust and the like in atmosphere can be degraded, and the adsorbability is high; modified sugar filter mud is used as a pore-forming agent, raw clay, ferronickel slag and mordenite are used as aggregate, and the fracture resistance, compressive strength and other indexes of the water permeable brick prepared after high-temperature sintering are ensured, the ferronickel slag self-cleaning water permeable brick accords with national waste resource comprehensive utilization industrial policy, a large amount of ferronickel slag can be effectively consumed, the production cost is reduced, and energy consumption is lowered.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a ferronickel slag self-cleaning permeable brick 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 compressive strength is rel...

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.