What is the bulk density of insulating bricks?
Stoneware porcelain water absorption rate is greater than 0.5% and less than or equal to 3%; fine stoneware bibulous rate is greater than 3% and less than or equal to 6%; brick bibulous rate is greater than 6% and less than or equal to 10%; pottery tile water absorption rate is greater than 10%. The water absorption rate of expression: ceramic brick brick >6% = >10% = >3% = fine stoneware porcelain stoneware or porcelain >0.5%
National classification standard: water absorption rate of ceramic tile is less than or equal to 0.5%;
