Portland --Pozzolana cement when tested for soundness according to the method described in section II of ESCD8490,shall conform to the requirements specified in clause 6.2.4 of ESC.D5.201.

• 水泥的安定性要根据ESCD8490标准的第二章中的方法来检验，要确保所有的指标满足ESC.；D5