【作者】 陆辉东； 佟晓君； 陈海彬；

【Author】 LU Hui-dong,TONG Xiao-jun,CHEN Hai-bin (College of Civil and Arthitechture Engineering,Hebei Polytechnic University,Tangshan Hebei 063009,China)

【机构】 河北理工大学建筑工程学院；

【摘要】 针对我国目前高强混凝土无损检测技术现状和高强混凝土的特点,采用唐山市有代表性材料,对强度等级为C50～C80的高强混凝士标准试块,分为14d、28d、60d、90d 4个龄期,采用ZC1型高强回弹仪进行回弹试验。对混凝土回弹和抗压数据采用多种回归方程进行回归分析和精度比较,求得最佳混凝土回弹仪测强曲线公式,测试精度满足混凝土质量控制要求,为建立唐山地区高强混凝土测强曲线提供参考。更多还原

【Abstract】 According to the present situation of high strength concrete nondestructive testing technology and the characteristics of high-strength concrete,adopt representative materials of Tangshan,for high strength concrete test blocks strength grade from C50 to C80,Divided into 4 ages of 14 days,28 days,60 days and 90 days,adopts ZCl type of high strength concrete rebound apparatus to experimental research on the rebound method.For concrete rebound and compressive data regression analysis of regression equations and precision compared,get the best concrete rebound instrument curves measuring formula,test precision meets the requirement for quality control of concrete,to provide reference for building the high-strength concrete measuring strength curve of Tangshan area.更多还原