Water permeable brick and preparation method thereof

Abstract

The invention discloses a water permeable brick and a preparation method thereof. The water permeable brick comprises two parts, namely a surface layer and a base layer, wherein the material of the surface layer is prepared from the following components in percentage by mass: 60-70% of ceramic sand, 15-20% of sand and 15-20% of cement, and in addition to the solid components with the sum of 100% in percentage by mass, water accounting for 50-60% by mass of cement is further added; and the material of the base layer is prepared from the following components in percentage by mass: 45-65% of building silt unburned ceramsite, 10-15% of cement, 5-10% of fly ash, 10-15% of melon seed-shaped drug slices and 10-15% of sand, and in addition to the solid components with the sum of 100% in percentage by mass, the water accounting for 30-40% and a water reducer accounting for 1-1.5% relative to total mass of the cement and the fly ash are further added. The water permeable brick disclosed by the invention is prepared by using the building silt unburned ceramsite to replace natural aggregate or calcined ceramsite, on one hand, the using ways of the building silt unburned ceramsite can be expanded, the utilization rate of solid wastes is improved, and negative effects on an environment are reduced, and on the other hand, the obtained water permeable brick has excellent performance.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a permeable brick and a preparation method thereof. Background technique [0002] Permeable pavements are widely used in pedestrian walkways and bicycle lanes, ground road decoration in communities, garden landscape roads, city squares and outdoor parking lots because they can conserve groundwater sources, replenish green water, reduce surface runoff, and reduce urban water pollution and noise. . However, the current production technology of permeable bricks mostly uses natural aggregates or calcined ceramsite as raw materials. Although their quality is excellent, the production process has a greater burden on the environment. On the one hand, natural aggregates need to be mined in mines, which will inevitably lead to a continuous shortage of rock resources and damage the environment; on the other hand, the preparation of calcined ceramsite consumes a lot of energy, w...

AI Technical Summary

Problems solved by technology

However, the current production technology of permeable bricks mostly uses natural aggregates or calcined ceramsite as raw materials. Although their quality is excellent, the production process has a greater burden on the environment.

On the one hand, natural aggregates need to be mined in mines, which will inevitably lead to a continuous shortage of rock resources and damage the environment; on the other hand, the preparation of calcined ceramsite will consume a lot of energy, which is costly and uneconomical

[0003] Building silt unfired ceramsite is a kind of artificial unfired ceramsite prepared by natural curing or steam curing with building silt as the main material. Its bulk density, cylinder compressive strength, water absorption and other properties are comparable to other types of Unfired ceramsite or calcined ceramsite is equivalent, and it can be used instead of natural aggregate or calcined ceramsite to prepare permeable bricks. However, there are no related patents and reports on using construction silt unfired ceramsite to prepare permeable bricks.

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