摘要
试验研究了粉煤灰掺量对粉煤灰混凝土与钢筋粘结性能的影响。结果表明:掺加粉煤灰可以提高混凝土与钢筋的粘结应力;掺粉煤灰的混凝土拉拔试件钢筋应变沿锚固长度上的分布更均匀;粉煤灰掺量为20%的拉拔试件的极限粘结应力和极限滑移值均较大且粘结应力在锚固长度上的分布比较均匀。
The impact of fly ash content on bond performance between fly ash concrete and steel bars has been experimented in the study. The bond stress between concrete and steel bars could be improved and the distribution of steel strain along the anchorages length became more uniform by adding fly ash in concrete specimens. After adding appropriate amount of fly ash, it was found that both ultimate bond stress and ultimate slip deformation were bigger than that of other specimens. Meanwhile, the distribution of bond stress along the anchorage length became more uniform.
出处
《四川建筑科学研究》
2012年第5期179-182,共4页
Sichuan Building Science
基金
江苏省"六大人才高峰"资助项目(2008183)
