2001版回弹法测强规程在上海地区适用性验证  

Applicability Test of Rebound Method Strength Measurement Regulation(2001 Edition)in Shanghai Area

作　　者：童寿兴[1] 商涛平[1] 毛本生 陈启泰 

机构地区：[1]同济大学,上海200092 [2]上海建国混凝土有限公司,上海200436

出　　处：《施工技术》2003年第4期54-55,共2页Construction Technology

摘　　要：《回弹法检测混凝土抗压强度技术规程》JGJ T23 2001经在上海地区的检测验证,其强度标准误差为14 2%,但存在混凝土强度推定值在低强、短龄期混凝土时偏大,高强度混凝土中偏小的趋势。本文建立的回归公式相关性好、误差小、无需修正,适用于泵送混凝土的工程检测。Detected and certificated in Shanghai area,'Technical Regulation of Rebound Method Detecting Concrete Compression Strength'JGJ/T232001 has a 142% standard deviation of strength estimation.But the estimated value of concrete strength according to this regulation is always larger than the practical value when concrete has low strength and short curing time and is usually smaller than the practical value when concrete has high strength.The regression equation introduced in this article has good correlation and small error,results calculated with this equation do not require to be corrected,and proper to detect pump concrete.

关 键 词：抗压强度 回弹法 检测 回归公式 泵送混凝土 高强度混凝土 

分 类 号：TU528.53[建筑科学—建筑技术科学]