Water permeable brick and preparation method thereof

Abstract

The invention relates to the technical field of water permeable bricks, in particular to a water permeable brick and a preparation method thereof. The water permeable brick comprises a base layer, a waterproof brick body frame is arranged on the base layer, the waterproof brick body frame is a five-face dense waterproof rectangular frame with an opening in the upper end, and an inwards-inclined inclined face is arranged at the upper end of the waterproof brick body frame; an inner cavity of the waterproof brick body frame forms a filling cavity, and a filling layer formed by pouring a water permeable filling material is arranged in the filling cavity; two horizontally-arranged communicating pipes are arranged between the waterproof brick body frame and the base layer, the communicating pipes are vertically arranged and communicate with each other, the upper ends of the communicating pipes penetrate through the bottom of the waterproof brick body frame and extend into the filling layer,and a plurality of overflow holes are formed in the tops of the communicating pipes at intervals along the axis. Rainwater and surface runoff are collected to avoid waterlogging, meanwhile, in hot days after rain, the stored water is evaporated, the pavement temperature is reduced, and therefore pavement sensible heat emission is reduced, and the urban heat island effect is reduced.

Description

technical field [0001] The invention relates to the technical field of permeable bricks, in particular to a permeable brick and a preparation method thereof. Background technique [0002] In the process of urbanization, soil layers and lawns that can store and permeate water have been eradicated. Replace it with hard impermeable materials such as roof, asphalt, concrete stone slabs or cement bricks, so that rainwater cannot be effectively stored in the surface soil layer and cannot penetrate into the ground, increasing the surface runoff. Surface runoff and rainwater can only be discharged into nearby rivers and pools through the dotted ditches, drainage pipes, and stormwater pipes. During heavy rainfall, the river water rises, and the groundwater level rises. The urban underground water system and drainage ditches cannot drain the surface runoff formed by the heavy rainfall in time, resulting in urban flooding. [0003] In recent years, permeable bricks have been widely u...

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Problems solved by technology

[0005] In order to make up for the deficiencies of the existing technology and solve the problems that the existing permeable bricks are easy to cause waterlogging in the lower parts of the city in rainy days and aggravate the urban heat island effect in hot days, a permeable brick and its preparation method proposed by the present invention

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