废弃混凝土作为再生粗集料在混凝土中应用的实验研究

Experimental study on the application of waste concrete asrecycled coarse aggregate in concrete

本文主要针对废弃混凝土加工后作为再生粗集料进行了研究,通过掺入不同掺量的再生粗集料配制C20、C35、C50三个强度等级的混凝土进行实验研究。结果表明,混凝土中使用再生集料作为粗集料具有可行性,尤其对于中低强度混凝土,再生粗集料的掺入对混凝土性能影响不大,而配制高强混凝土时则要严格控制再生粗集料的掺量。

This paper mainly studies the waste concrete as recycled coarse aggregate after processing.The experimental study on the preparation of C20,C35 and C50 concrete with different content of recycled coarse aggregate was carried out.The results show that it is feasible to use recycled aggregate as coarse aggregate in concrete,especially for medium and low strength concrete,the addition of recycled coarse aggregate has little effect on the performance of concrete.When preparing high-strength concrete,the content of recycled coarse aggregate should be strictly controlled.