PROCESS FOR THE PREPARATION OF PRECAST CONCRETE

摘要

A color PC member is prepared by the following way. (1) 100kg of the portland cement is mixed uniformly with the following respective material in a dry state; 0.5-8kg of paint, 5-20kg of powdered limestone(dolomite powder), 10-100kg of dolomite aggregate with under 1mm particle diameter and 100-400kg of dolomite aggregate with about 2-3mm particle diameter. (2) Add the blended water with admixture at the volume of 35-45 weight% cement, compound them uniformly and produce color concrete. (3) The blended color concrete is poured into the molding frame, cured and released.