WATER PERMEABLE HARDENED BODY AND ITS FORMATION

摘要

PROBLEM TO BE SOLVED: To obtain a water permeable hardened body having high water permeability, durability and flow applicability. SOLUTION: A cement mortar or concrete compsn. contg. 100 pts.wt. cement, 300-500 pts.wt. aggregate having 1-30 mm grain diameter and 5-30 pts.wt. binder based on chloroprene rubber is mixed with 0.01-0.5 pt.wt. powder of a polysiloxane type auxiliary defoaming dispersant and the mixture is hardened to form the objective water permeable hardened body.