In addition,air void parameters for BNS concrete and PCE concrete and combinations of PCE with AVCs were tested to verify which one takes advantages to resist to cyclic freezing and thawing.

• 另外,对混凝土分别单掺萘系减水剂(BNS)和聚羧酸系减水剂(PCE),以及混掺AV C与PCE后的孔隙系统质量的优劣情况,本文也作了比较。