Patent ID: 6824605
Filing Date: 2004-11-30
Classification: C04B,E01C,Y02A

Abstract:
An ecological permeable concrete composition, having high compression, bending and abrasion resistance, comprising from about 5.25-15.7 wt % cement; 2.18-4.8 wt % water; an additive in an amount equal to 2.18-4.8 wt % the additive comprising from about 24.5% to 28.2% by weight of a mixture made of dispersing agents; from about 3.3% to 3.8% by weight of a humectant agent; from 0 to about 1% by weight of a non ionic surfactant; from 0 to about 3% by weight basis of a bactericidal agent; from about 3.3% to 3.8% by weight of hydroxypropylethyl or methylcellulose, from 0 to about 0.3% by weight of an antifoaming agent; and form about 55.8% to 64.2% by weight of a highly reactive non crystalline calcinated silica aluminate; and 56.8-78.6 wt % of stone aggregate.