混凝土超声检测中含水率对声速影响的研究  

STUDY ON THE EFFECT OF THE WATER CONTENT OF CONCRETE ON THE VELOCITY OF ULTRASONIC WAVES

作　　者：商涛平[1] 童寿兴[1] 

机构地区：[1]同济大学混凝土材料研究国家重点实验室,上海200092

出　　处：《无损检测》2003年第4期189-191,共3页Nondestructive Testing

摘　　要：在混凝土强度超声检测过程中 ,分析了含水率对混凝土中超声声速的影响程度 ,建立了混凝土水饱和状态和绝干状态超声声速与自然干燥状态声速的换算公式 。During the strength test of concrete by ultrasonic technique, the considerable effect of water content on the ultrasonic velocity in concrete was analyzed. Two conversion formulae for ultrasonic velocities in water saturated and absolutely dry situations against naturally dry situation were presented respectively. Suggestion was also proposed that the water content term should be taken into account in ultrasonic concrete strength testing curve.

关 键 词：超声检验 含水率 超声波速度 混凝土 测强曲线 

分 类 号：TU528.07[建筑科学—建筑技术科学]