The abrasion resistance of air entraining concrete has little changes when salts added into concrete.
引气混凝土中掺盐后耐磨性基本不变。
The air entraining concrete's shrinkage and creep were less than concrete which not content air entrained agent, and the durability performance was improved obviously.
混凝土的收缩和徐变较不引气混凝土相比较小；耐久性能明显改善。
An air entraining high range water reducing agent was synthesized by way of oxidization and grafted - sulfonation of black liquor of reed pulp (sodium lignosulfonate) and its performance was studied.
通过对芦苇造纸黑液氧化、接枝磺化合成工艺，研制出具有引气性能的高效减水剂，并对其性能进行了研究。
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