高含气量对混凝土抗冻性的影响

Influence of High Air Content on Frost Resistance of Concrete

以标准养护温度24d后,在(20±2)℃水中浸泡4 d的高含气量硬化混凝土试件(含气量>6.0%)为研究对象,探讨混凝土拌和物的高含气量对成形后硬化混凝土抗冻性的影响。通过比较不同高含气量混凝土的抗冻性差异,以便在抗冻性方面为提高工程实体质量提供一种思路。

Taking the high air content hardened concrete specimens(air content>6.0%)soaked in(20±2)℃water for 4 days after the 24 days standard curing process as the research object,this paper discusses the influence of high air content of concrete mixture on the frost resistance of hardened concrete after forming.By comparing the differences of frost resistance of different high air content concrete,it can provide an approach to improve the quality of engineering entity in frost resistance.