高强混凝土回弹仪检测混凝土抗压强度的试验研究

摘要

运用中型回弹仪和高强混凝土回弹仪两种仪器同时对强度为C50~C80的混凝土试块进行回弹检测，通过对两组回弹数据及抗压强度值的回归拟合，分别建立其各自的回弹测强曲线，并分析两种回弹曲线的计算误差从而比较两种回弹仪的检测精度。结果表明，高强混凝土回弹仪比中型回弹仪更适合于检测高强混凝土强度的检测。%Using medium rebound hammer and high strength concrete rebound hammer to measure the rebound values of concretes var-ied from C50 to C80 at the same time,though the regressive simulation of the two groups of rebound values and the compressive strength of the concrete,the respective rebound curves are established and the calculation errors of the rebound curves are analyzed and compared. The result shows that high strength concrete rebound hammer is more suitable than medium rebound hammer for the strength inspection of high strength concrete.