Anlysis on Freeze-Thaw Cycling Damage of Layered Hybrid Fiber Reinforced Concrete

摘要：

　　Based on the least squares theory and a damage variable D, a damage model is formed for the freeze-thaw degradation of the layered hybrid fiber reinforced concrete (LHFRC).By the model the degradation equations for the LHFRC and the plain concrete(PC) are regressed with the experimental data, which are identical in the initial phase and different in the damage propagation phase and the D is used to describe the damage process of concrete subjected to freeze-thaw cycles.The D of LHFRC is smaller than that of PC in the damage propagation phase.Furthermore, the frost resistance of LHFRC is stronger than that of PC due to steel fibers and polypropylene fibers having retarded the degradation of concrete.

关键词： Damage model Freeze-thaw cycling damage Layered hybrid fiber reinforced concrete

作者: Dongqing He Bo Liu

作者单位: Institute of Material and Structure,Henan University,Kaifeng 475001,China;School of Civil Engineerin School of Civil Engineering and Architecture,Henan University,Kaifeng 475001,China

会议类型: 国际会议

会议名称: the 2012 International Conference on Vibration, Structural Engineering and Measurement (2012年振动、结构工程与测量国际会议(ICVSEM2012))

会议地点: 上海

会议语种:英文

页码: 1743-1746

在线出版日期: 2012-10-19（万方平台首次上网日期，不代表论文的发表时间）