摘要
以不同骨料侵蚀程度和再生粗骨料取代率为变量,研究了再生混凝土的力学性能。试验分为3组,再生粗骨料的侵蚀程度分别为未侵蚀、交替侵蚀3次和6次,再生粗骨料取代率分别为0、25%、50%、75%、100%。利用再生混凝土单轴抗压试验方法,分析了再生混凝土的吸水率及力学性能。研究结果表明,骨料侵蚀程度和再生粗骨料取代率对再生混凝土的吸水率、抗压强度、峰值应变、应力-应变等有较大影响。
The mechanical properties of recycled concrete are experimentally studied by varying the degree of aggregate erosion and the replacement rate of recycled coarse aggregate.The tests are divided into three groups,in which,the erosion degrees of recycled coarse aggregate are non-erosion,alternating erosion for three times and six times respectively,and the replacement rates of recycled coarse aggregate are 0,25%,50%,75%and 100%respectively.The water absorption and mechanical properties of recycled concrete are analyzed by uniaxial compression tests.The results show that the degree of aggregate erosion and the replacement rate of recycled coarse aggregate have great influences on the water absorption,compressive strength,peak strain and stress-strain of recycled concrete.
作者
贾宝玲
路威
贾飞
JIA Baoling;LU Wei;JIA Fei(Yangling Vocational and Technical College,Yangling 712100,Shaanxi,China;Beijing IWHR Corporation,Beijing 100048,China;China Institute of Water Resources and Hydropower Research,Beijing 100048,China;Xi an University of Technology,Xi an 710048,Shaanxi,China)
出处
《水力发电》
北大核心
2020年第3期117-122,共6页
Water Power
基金
杨凌职业技术学院自然科学研究基金项目(A2019010)。
关键词
再生混凝土
再生粗骨料
骨料侵蚀程度
取代率
力学性能
recycled concrete
recycled coarse aggregate
aggregate erosion degree
replacement rate
mechanical property
