摘要
通过承载混凝土试件的快速碳化试验,研究了弯曲荷载作用下混凝土的碳化速度,试验结果表明,弯曲拉(压)应力作用下混凝土碳化速度均大(小)于无应力状态下的混凝土碳化速度。定义了混凝土碳化弯曲应力影响系数,分析了弯曲应力影响系数的变化规律,得出混凝土碳化弯曲应力影响系数与应力水平符合二次多项式关系。
Based on the accelerated carbonation test of fly ash concrete under load,carbonation velocity of concrete under bending load was investigated.The experiment results indicate that the concrete carbonation depths under the bending tensile（compressive） stress are larger（smaller） than the concrete carbonation depths under the non-stressing condition.By virtue of the bending stress coefficient of concrete carbonation,the influence of stress levels on concrete carbonation was analyzed.The bending stress coefficient of concrete carbonation and stress levels are consistent with quadratic polynomial quadratic.
出处
《硅酸盐通报》
CAS
CSCD
北大核心
2011年第1期140-146,共7页
Bulletin of the Chinese Ceramic Society
基金
国家杰出青年科学基金项目(No.50725824)
国家青年科学基金项目(No.50908112)
内蒙古自然科学基金(No.2010BS0710)
