常温下再生混凝土三轴受力性能试验研究  

Triaxial mechanical performance experimental study of recycled concrete under normal temperature condition

作　　者：苏益声[1,2] 孟二从 陈宗平[1,2] 陆鹏[1] 

机构地区：[1]广西大学土木建筑工程学院,广西南宁530004 [2]广西大学广西防灾减灾与工程安全重点实验室,广西南宁530004

出　　处：《混凝土》2015年第3期46-49,53,共5页Concrete

基　　金：高等学校博士学科点专项科研基金联合资助项目(20134501110001);广西理工科学试验中心重点项目(LGZX201102);广西防灾减灾与工程安全重点实验室项目(20122DX02)

摘　　要：为研究常温下再生混凝土在三轴受力下的力学性能,对20个100 mm×200 mm的再生混凝土圆柱体试件进行常规三轴加载试验,以此观察试件的破坏形态,并对试件的峰值应力、峰值应变及本构方程进行分析,根据试验结果,拟合出了再生混凝土试件在常规三轴下的峰值应力、峰值应变计算公式及本构方程。这些结论将为再生混凝土的进一步理论研究及推广应用提供理论依据。In order to study the mechanical properties of recycled concrete under triaxial stress and normal temperature condition,20 cylindrical specimens of recycled concrete with the size of φ30 mm×200 mm had been made to conventional triaxial load test. Then to see the failure form of specimens, and analyse the peak stress, peak strain and constitutive equation. According to experimental results, the peak stress, peak strain calculating formula and constitutive equation of recycled concrete under conventional triaxial stress were fit- ted out. These conclusions will provide theoretical basis for the further study and application of recycled concrete.

关 键 词：再生混凝土 常规三轴 受力性能 本构方程 

分 类 号：TU528.01[建筑科学—建筑技术科学]