Cementless permeable concrete brick

Abstract

The invention provides a cement-free permeable concrete brick and belongs to the concrete field. Cheap alkaline mud and mineral powder are used to replace cement, the production cost of the permeableconcrete brick can be reduced, the environmental pollution problem caused by the alkaline mud and the mineral powder is solved, and meanwhile, the obtained cement-free permeable concrete brick has large permeation coefficient, good wear resistance and excellent compressive strength. The cement-free permeable concrete brick is prepared from components in parts by weight as follows: 80-100 parts ofthe alkaline mud, 90-110 parts of mineral powder, 90-120 parts of water, 1,400-1,500 parts of stone, 3.4-4.2 parts of crude salt and 1.87-2.31 parts of a high-performance water reducer.

Description

technical field [0001] The invention belongs to the field of concrete, in particular to a cementless permeable concrete brick. Background technique [0002] Permeable concrete is a type of concrete developed and used by countries such as Europe, America, and Japan to allow rainwater to flow into the ground to effectively replenish groundwater for the defects of urban road surfaces. It can effectively alleviate urban environmental problems such as the sharp drop in urban groundwater levels, and can effectively eliminate Environmental pollution hazards of oil compounds on the ground. As an excellent pavement material that can effectively protect groundwater, maintain ecological balance, and alleviate the urban heat island effect, pervious concrete is usually made into permeable concrete bricks and widely promoted in many countries. However, the existing permeable concrete bricks usually use cement as the adhesive material, and the production cost is relatively high, and its w...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the above-mentioned technical problems of high production cost and unsatisfactory water permeability of the existing permeable concrete bricks, the present invention proposes a cementless permeable concrete brick using alkali mud and mineral powder as adhesive materials, which has a large water permeability coefficient and excellent wear resistance. Good, excellent compressive strength, not only can reduce the production cost of permeable concrete bricks, but also solve the environmental pollution problem of alkali mud and mineral powder, with good economic and social benefits