Water permeable brick and preparation method thereof

Abstract

The invention provides a water permeable brick and a preparation method thereof. The water permeable brick is prepared from the following raw materials in parts by weight: 60-80 parts of blast furnace slag, 5-15 parts of polished slag, 10-20 parts of coal gangue, 15-25 parts of redware ore soil, 8-15 parts of a flux, 0.8-1.2 parts of an adhesive. The preparation method comprises the following steps of (1) material preparing; (2) crushing; (3) ball milling and wet mixing; (4) drying; (5) molding; and (6) burning. According to the preparation method, the water permeable brick which is prepared by adopting the blast furnace slag and the polished slag as main raw materials and adding the coal gangue and the redware ore soil has a relatively good water permeability, and the tensile structure and bending strength of the water permeable brick can be further improved.

Description

technical field [0001] The invention relates to the technical field of building ceramics, in particular to a permeable brick and a preparation method thereof. Background technique [0002] At present, cement, asphalt, marble and other non-permeable materials are mostly used in urban construction to pave the ground. These hardened pavements make it difficult to exchange heat and moisture between the ground surface and the air, and the ability to naturally adjust the temperature and humidity of the urban ground is very poor, and the surface absorbs heat. Difficulties, resulting in a large amount of waste heat in the urban space, and a large amount of reflection on the ground to radiate solar heat, which leads to the phenomenon that the nighttime temperature in the city is higher than that in the suburbs. Moreover, in rainy days, the hardened pavement will prevent rainwater from infiltrating directly into the ground, causing water to accumulate everywhere, affecting the comfort...

AI Technical Summary

Problems solved by technology

[0002] At present, cement, asphalt, marble and other non-permeable materials are mostly used in urban construction to pave the ground. These hardened pavements make it difficult to exchange heat and moisture between the ground surface and the air, and the ability to naturally adjust the temperature and humidity of the urban ground is very poor, and the surface absorbs heat. Difficulties, resulting in a large amount of waste heat in the urban space, and a large amount of reflection on the ground to radiate solar heat, which leads to the phenomenon that the nighttime temperature in the city is higher than that in the suburbs

Moreover, in rainy days, the hardened pavement will prevent rainwater from infiltrating directly into the ground, causing water to accumulate everywhere, affecting the comfort and safety of the road. The healthy growth of surface vegetation and the difficulty in greening have aggravated the problem of drought and water shortage in the city; and the accumulated water poured into the sewer and then into the river, which increased the discharge burden of the urban drainage system and the river. In sunny days, the ground is extremely dry and dusty. greatly reduced comfort

[0003] At present, people have gradually realized the seriousness of the above problems, and have also researched and developed a large number of permeable bricks. The existing permeable bricks can overcome the above problems to a certain extent, and the permeable bricks mainly made of iron tailings are A kind of permeable brick, this kind of permeable brick has low compressive and flexural strength due to the deformation of the body during the process of preparing permeable bricks from iron tailings