超声-回弹综合法检测再生混凝土强度的试验研究

Experimental study on the strength of recycled concrete by ultrasonic-rebound synthesis

根据普通混凝土的无损检测方法,探究无损检测方法检测再生混凝土强度的可靠性。采用origin9.0建立回弹值、超声波声速、超声-回弹综合法与实测抗压强度关系的回归拟合。数据分析表明:超声-回弹综合法比单一的回弹或超声波声速拟合精度更好,更适用于工程实践。

According to the nondestructive testing method of ordinary concrete,the reliability of recycled concrete strength with nondestructive testing method is explored.The regression fitting of rebound value,ultrasonic velocity,ultrasonic rebound method and measured compressive strength is established by origin 9.0.Data analysis shows that the ultrasonic-rebound method fitting accuracy is better than single rebound or ultrasonic velocity,more suitable for engineering practice.