Paper by SZTUKIEWICZ RYDZEWSKI from ISCR 6th 1990
To determine the concrete strength in road surface the authors have applied an ultrasonic method. In this method ultrasonic transducers are imposed to the upper surface of the pavement slab. The distance between the transducers is constant. Next propagation time of longitudinal ultrasonic wave is measured. The time of propagation and the path are used to determine the velocity of longitudinal ultrasonic wave. To establish the relationship between the concrete samples testing is used. Next the propagation time of longitudinal ultrasonic wave is measured and the concrete strength in road surface is determined. In this work the authors are going to describe the rules of applying the ultrasonic method, give examples of scaling and present results of concrete strength evaluation in road surface.
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