摘要
含孔混凝土是一种有效的抗冲击材料,为了研究含孔混凝土的力学性能,通过试验研究了4种(表观)密度的含空心球混凝土的静态压缩性能和劈裂性能,并建立了含空心球混凝土的强度模型。通过立方体抗压强度理论值与试验值的对比,证明该理论模型能够准确的预测抗压强度。分析了立方体的名义应力-应变曲线,简述了立方体能量吸收的原理。建立了混凝土相对抗压强度、相对劈裂抗拉与相对密度的关系,同时,建立了抗压强度与劈裂抗拉强度之间的关系。
To study the mechanical properties of concrete with holes, which was an effective impact resistant material.Static compression performance and split performance of concrete filled with hollow ball with four kinds of （apparent） density were studied experimentally, meanwhile, the strength model of concrete filled with hollow ball was established.The theoretical and experimental compressive strength values of cube were compared,which proved that the theoretical can accurately predict the compressive strength.Nominal stress-strain curves for concrete were analyzed and the principle of energy absorption was described briefly.The relationship between the relative compressive strength or relative splitting tensile strength and relative density was built,meanwhile,the relationship between the compressive strength and splitting tensile strength was established.
出处
《混凝土》
CAS
北大核心
2017年第6期31-35,共5页
Concrete
基金
国家自然科学基金项目(11372209)
山西省归国留学及择优项目(2013-044)
关键词
空心球混凝土
应力-应变曲线
抗压强度
劈裂强度
concrete filled with ball
stress-strain curve
compressive strength
splitting tensile strength
