Experimental study on the relationship between concrete stress and ultrasonic velocity

doi:10.3969/j.issn.1000-1565.2018.04.003

Abstract

Abstract: Based on the ultrasonic nondestructive testing method,the natural maintained pumping concrete blocks of C20 and C30 is tested.Through the test of different ages and different points, the ultrasonic velocity and working stress are obtained. Then the Origin software is used to analyze the relationship between ultrasonic velocity and the concrete working stress.The result shows that linear function is reasonable in describing the relationship of ultrasonic velocity and working stress of concrete. Then a reference can be provided in testing the working stress of in-service concrete by nondestructive testing technology.

Key words: concrete, ultrasonic velocity, working stress, nondestructive testing

CLC Number:

DU Erxia, ZHANG Junhong,YAN Yujie. Experimental study on the relationship between concrete stress and ultrasonic velocity[J]. Journal of Hebei University (Natural Science Edition), 2018, 38(4): 356-361.

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