Szukana fraza: [Abstract = "This experimental study aimed to use the ultrasonic pulse velocity method \(UPV\) in order to investigate the effect of rubber tire waste content and transducers` diameters and frequencies on the evolution of ultrasonic velocities in time and to elucidate the correlations between UPV and the properties of various concrete mixtures. The incorporation of this waste involved volume substitution \(0, 5, 10, 15 and 20%\) of fine aggregates \(sand\) by rubber waste \(RW\) granulates."]

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