再生集料混凝土与普通混凝土的冻融性研究

Research on freezing-thawing quality of recycled aggregate concrete and ordinary concrete

通过快冻法和慢冻法试验比较了再生混凝土和普通混凝土在质量损失、抗压强度损失和相对动弹性模量三方面的差异,并分析了差异产生的原因。结果表明,按本文配制的再生集料混凝土基本上能满足抗冻性的有关规定,抗冻融循环的能力能达到一般工程的要求。

Through fast freezing-thawing method and slow freezing-thawing method,the differences between recycled concrete and ordinary concrete in terms of mass loss,compression strength loss and relative dynamic elastic modulus were compared,and the causes for the differences were analyzed.The result shows that the recycled aggregate concrete prepared in accordance with this paper can basically meet relative standards of the freezing resistance,and the ability to resist freezing-thawing cycle can reach the requirements of the normal projects.