Anti-blocking quick-infiltration pervious brick and method of selecting size of aggregate in anti-blocking surface layer

Abstract

The invention discloses an anti-blocking quick-infiltration pervious brick and a method of selecting size of aggregate in an anti-blocking surface layer. The anti-blocking quick-infiltration perviousbrick comprises a quick infiltration base layer and an anti-blocking surface layer which is 0.5-1.0 cm in thickness; the middle of the anti-blocking surface layer is provided with a groove parallel tothe width of the brick; the length of the groove is equal to the width of the brick; the depth of the groove is equal to the thickness of the anti-blocking surface layer; the peripheral edge of the anti-blocking surface layer is provided with chamfer; the depth of the chamfer is equal to the thickness of the anti-blocking surface layer; the part, laid near an asphalt and cement pavement, of the anti-blocking surface layer is 20-40 mu m; the part, laid near a grassland and earth pavement, of the anti-blocking surface layer is 5-20 mu m in pore size. The method includes the steps of collectingsurface runoffs, analyzing particle size, selecting pore size, calculating aggregate size, and correcting the particle size of the aggregate. The anti-blocking quick-infiltration pervious brick and the method have the advantages that infiltrating area can be increased, surface ponding water can be decreased, good water perviousness and air breathability are provided, quick infiltration of rainwater is achieved, soil water and underground water are supplemented to keep soil moist, and urban conservation is increased.

Description

technical field [0001] The invention relates to the field of building materials, in particular to an anti-blocking fast-permeable water brick and a method for selecting aggregate particle diameters in the anti-blocking surface layer. Background technique [0002] In recent years, the gradual increase of rainstorm weather, high precipitation intensity and long continuous precipitation time have caused water accumulation on road surfaces in most cities in my country. Therefore, the construction of sponge city is particularly important in the new generation of urban stormwater management, and permeable pavement bricks are a key component of sponge city construction. [0003] Most of the existing permeable bricks are concrete permeable bricks and ceramic permeable bricks. After 3 to 5 years of use, due to their unreasonable structure, it is easy to cause blockage, so that rainwater cannot infiltrate normally, and the function of reducing urban waterlogging is thus lost. Therefo...

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Problems solved by technology

[0003] Most of the existing permeable bricks are concrete permeable bricks and ceramic permeable bricks. After 3 to 5 years of use, due to their unreasonab

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