摘要
通过掺入钢纤维和控制再生骨料替代率来提升再生骨料混凝土的力学性能,对钢纤维再生骨料混凝土试件进行抗压强度试验和劈裂抗拉强度试验。结合抗压强度试验和劈裂抗拉强度试验数据,分析再生骨料混凝土的经济可行性。通过试验得到再生骨料替代率为20%、30%、40%时再生骨料混凝土均满足C30混凝土强度要求,掺入钢纤维后,再生骨料混凝土力学性能得到提高,其中,再生骨料替代率为30%时,混凝土经济效益最高。
This paper improves the mechanical properties of recycled aggregate concrete by adding steel fiber and controlling the replacement rate of recycled aggregate, and conducts the compressive strength test and splitting tensile strength test of steel fiber recycled aggregate concrete test. The data of compressive strength test and the economic feasibility of fracture tensile strength test were analyzed. Through the test, the replacement rate of recycled aggregate is 20%, 30% and 40% when the recycled aggregate concrete meets the strength requirements of C30 concrete. After being mixed with steel fiber, the mechanical performance of recycled aggregate concrete is improved. Among them, when the replacement rate of recycled aggregate is 30%, the concrete has the highest economic benefit.
作者
冯霄
张腾元
吴佳明
张浩原
Feng Xiao;Zhang Tengyuan;Wu Jiaming;Zhang Haoyuan(College of Civil Engineering and Planning,Liupanshui Normal University,Liupanshui 553004,China)
出处
《科学技术创新》
2022年第34期117-120,共4页
Scientific and Technological Innovation
基金
国家级大学生创新创业训练计划项目“废弃混凝土的二次‘人生’”(编号:202010977007)
国家级大学生创新创业训练计划项目“变废为宝-纤维增强再生混凝土性研究”(编号:202210977038)
贵州省普通高等学校青年科技人才成长项目“乡村振兴背景下贵州山地民居装配式节能建筑体系研究”(编号:黔教合KY字[2020]126)
六盘水师范学院学生科研训练项目“纤维增强再生混凝土性能研究”(编号:2021DK072)。
关键词
再生骨料混凝土
替代率
力学性能
钢纤维
经济性
recycled aggregate concrete
replacement rate
mechanical properties
steel fiber
economy
