摘要
试验研究了三向受压状态下导电的碳纤维混凝土力学量与电学量的关系,补充了以往学者提出的碳纤维混凝土单向受压状态下的各种力电关系,为将碳纤维混凝土应用于道路测重提供参考。对三向受压碳纤维混凝土试块作单次及循环加载试验,记录试块所受荷载与试块的电阻值,得到荷载与电阻变化率之间的关系。处于弹性阶段及弹塑性阶段的碳纤维混凝土试块,其电阻变化率与荷载具有很好的对应性,可以反映荷载的变化情况。处于三向受压状态的碳纤维混凝土具有良好的压敏性,应用于道路测重系统具有可行性。
The relationship of mechanical and electrical quangtity of carbon fiber reinforced conductable concrete in triaxial compres- sion was tested for complement the relationships in mono axial compression which were raised by former researchers.The results may give reference for the application of this material to road weighing.The relationships of load and electrical resistance changing rate were tested in one-time and cyclic loading.It showed that the changes in electrical resistance and load were synchronous in both elastic and elasto-plas- tic phases.In conclusion, the compression sensibility was good for carbon fiber reinforced concrete in triaxial compression, and it is possi- ble for application in traffic monitoring weighing system,
出处
《混凝土》
CAS
CSCD
北大核心
2014年第1期24-27,共4页
Concrete
基金
国家"十二五"科技支撑计划项目(2012BAJ16B05)
辽宁省教育厅科研项目计划(L2010458)
关键词
三向受压
碳纤维混凝土
单次加载
循环加载
triaxial compression
carbon fiber reinforced concrete
one-time loading
cyclic loading
