Water-permeable cement concrete

Abstract

The invention provides water-permeable cement concrete. The water-permeable cement concrete is prepared by uniformly mixing cement, stones, sand, water, a water reducing agent, stone powder or stone slag, and polypropylene fibers in a weight ratio of 1:(3.5-5.5):(0.5-0.9):(0.2-0.35):(0.01-0.02):(0.15-0.25):(0.002-0.003), wherein the using amount of the cement per cubic meter of water-permeable cement concrete is 300 to 400kg. The water-permeable cement concrete has the advantages of high strength, toughness, water permeability and air permeability, small using amount of the cement, and the like, and is easy to construct.

Description

【Technical field】 [0001] The invention relates to the technical field of concrete, in particular to a permeable cement concrete and a construction method. 【Background technique】 [0002] At present, the surface of modern cities is mostly covered by reinforced concrete buildings and impermeable pavement. Compared with natural soil, ordinary concrete pavement lacks breathability and has poor ability to absorb heat and infiltrate rainwater. A series of environmental problems have been caused. Concrete has always been considered the culprit of destroying nature, but as long as continuous pores are formed, it can create a connection point with the natural environment and greatly change the image of the past. Permeable cement concrete is a creative material for restoring the constantly damaged earth environment because of its honeycomb porous structure. It has characteristics different from ordinary concrete: small bulk density, insignificant capillary phenomenon of water, air per...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a kind of permeable cement concrete, which can solve the problems of poor ventilation and drainage capacity of ordinary cement pavement in the prior art, poor temperature adjustment ability of hardened pavement under high temperature, etc., and can also solve the problem of sandless Permeable cement concrete has problems of low strength or inability to balance strength and porosity

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