Production method of sintered water-permeable brick

Abstract

The invention relates to a production method of a sintered water-permeable brick. The production method of the water-permeable brick at least comprises the steps of step 1, preliminary treatment of raw materials; step 2, material mixing and homogenizing; step 3, aging treatment; step 4, preliminary molding; step 5, preparation of pollution control particles; step 6, molding of the water-permeablebrick; and step 7, calcination. The water-permeable brick provided by the invention is produced by sintering so that the strength of the water-permeable brick is much larger than that of the traditional self-setting water-permeable brick, thereby prolonging the service life of the brick. Meanwhile the pollution control particles are obtained by filling a photocatalyst into ceramsites or porcelainparticles so that the produced water-permeable brick has the pollution control capability. The solidification of the pollution control particles on the surface of the brick body is completed in the brick body sintering process; and by disposing ceramsites or porcelain particles having a hardness greater than that of the sintered water-permeable brick on the surface of the brick body, the surface strength of the sintered water-permeable brick is further improved, the wear resistance of the brick body is enhanced, that is, the service life of the brick body is prolonged.

Description

technical field [0001] The invention relates to the field of building material manufacturing, in particular to a production method of sintered permeable bricks. 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 originated in the Netherlands. During the process of building a city from the sea, the Dutch found that the ground after the seawater was drained would cause continuous land subsidence due to long-term lack of contact with water. Once the dykes on the coastline are washed away, the seawater will quickly rush to cities much lower than sea level and submerge the entire coastal city. In order to prevent the ground from sinking, the Dutch made a small pavement brick with a length of 200 mm, a width of 100 mm, and a he...

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 be used for pollutant treatment, or the pollution control function of the permeable brick has a short service life. Most of the pollution is achieved by coating and photocatalytic materials on the surface of the brick body, but once the surface of the brick body wears out, the pollution control function will be lost

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