Published in Journal of Young Scientist, Vol.I
Written by Catalin BOTEA, Ramona PIRLOG, Ioan MARGARINT
The paper deals with non-destructive methods for determination of physical and mechanical characteristics of concrete specimens. The devices used for these determinations as Pundit Lab and Hammer Digi-Schmidt are in according with European and Romanian norms. The Pundit Lab is an ultrasonic pulse velocity (UPV) test instrument which is used to examine the quality of concrete. It features online data acquisition, waveform analysis and full remote control of all transmission parameters. The Schmidt Hammer Digi-Schmidt was developed for the non-destructive measurement of the concrete compressive strength and controlling the uniform concrete quality. The authors emphasizes that the use of non-destructive testing provides plausible values on compressive strength of concrete specimens. This statement is proved by results obtained from tests according to SR EN 12390-3: Testing hardened concrete - Part 3: Compressive strength of test specimens. For experimental determinations presented in this paper the devices belong of Concrete Laboratory of Land Reclamation and Environmental Engineering Faculty were used.
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