再生混凝土强度和耐久性的试验研究

摘要

设计制备了不同再生骨料取代率的再生混凝土试块，通过强度测试仪及RCM试验研究了再生混凝土强度和氯离子扩散系数，试验结果表明，混凝土的强度随着再生骨料取代率的增加而变化幅度不大，可按照现有混凝土强度规范计算，扩散系数随再生骨料的取代率的增加有所提高。%Design different recycled aggregate replacement rate of recycled concrete blocks,through strength tester and RCM tests on the strength of concrete and chloride ion diffusion coefficient of regeneration. The test results show that,the strength of concrete with the increase of recycled aggregate replacement rate and changes little,can be calculated in accordance with the existing concrete strength specification,but diffusion coef-ficient increased with increasing replacement ratio of recycled aggregate.