水利水电科技进展2017，Vol.37Issue(1)：90-94,5.DOI:10.3880/j.issn.1006-7647.2017.01.016
再生混凝土力学性能提升技术与应用
Technique for improvement of mechanical properties of recycled concrete and its application
摘要
Abstract
In view of the ecological deterioration caused by massive concrete wastes and the lack of natural aggregate resources, an experimental study on mechanical properties of recycled concrete and the technique for their improvement was carried out for the Xicheng Canal three-class waterway regulation project through preparation of the recycled concrete with different strength grades and different recycled aggregate contents. The results show that the content of recycled aggregates has a weak effect on the mechanical properties of C35 concrete and concrete with even lower strength, but has a large influence on C40 concrete and concrete with even higher strength. With an increase of the recycled aggregate content, the mechanical properties of the recycled concrete degrade. The mechanical properties of the recycled concrete can be improved by rationally determining the recycled aggregate gradation, mixing in natural aggregates, strengthening the recycled aggregates, and optimizing the mix ratio. The application of the technique to the Xicheng Canal three-class waterway regulation project has achieved large economic benefits.关键词
再生混凝土/废弃混凝土/再生骨料/力学性能/航道整治/锡澄运河Key words
recycled concrete/waste concrete/recycled aggregate/mechanical property/channel regulation/Xicheng Canal分类
建筑与水利引用本文复制引用
刘震宇,秦鸿根,刘冠国,马彪,张国荣..再生混凝土力学性能提升技术与应用[J].水利水电科技进展,2017,37(1):90-94,5.基金项目
江苏省交通科学研究计划(2011Z1-5) （2011Z1-5）
