CRUDE MIXTURE FOR MAKING BRICK

摘要

FIELD: chemistry.SUBSTANCE: crude mixture for making brick contains the following, wt %: sawdust sieved through sieve No 5 5.0-7.0; quartz sand sieved through sieve No 014 29.0-33.0; portland cement 20.0-24.0; lime paste 33.0-37.0; technical foam prepared from 4% aqueous solution of foaming agent PB-2000 5.0-7.0.EFFECT: improved heat-insulation properties while preserving strength.1 tbl