摘要
混凝土碳化能提高其表面硬度,现行混凝土强度检测规程把碳化深度作为回弹法检测混凝土强度的一个修正系数来采用。研究发现在某种特定的状态下测定的碳化值不一定是实质意义上的混凝土碳化深度。研究揭示了回弹法检测中酚酞试剂指示假性碳化引起混凝土检测强度评判的误区。
Carbonation could improve the surface hardness of concrete. Current specification for concrete strength determination by rebound method used the carbonation depth as a compensation factor in concrete strength determination by rebound method. It was found that the carbonization detected under a specific state may not be the real carbonization depth of concrete. This paper pointed out the concrete strength determination mistake caused by spurious carbonization indicated by phenolphthalein indicator in the rebound method.
出处
《建筑技术开发》
2015年第12期35-36,共2页
Building Technology Development
关键词
无损检测
碳化
回弹法
nondestructive detection
carbonization
rebound method
