Title: Using of non-destructive methods for strength detection on blended cements and paving blocks

Authors: Jiri Brozovsky, Ondrej Matejka, Petr Martinec

Addresses: Faculty of Civil Engineering, Technology Institute of Building Materials and Elements, Brno University of Technology, Veveri 95, 602 00 Brno, Czech Republic. ' Faculty of Civil Engineering, Technology Institute of Building Materials and Elements, Brno University of Technology, Veveri 95, 602 00 Brno, Czech Republic. ' Faculty of Civil Engineering, Technology Institute of Building Materials and Elements, Brno University of Technology, Veveri 95, 602 00 Brno, Czech Republic

Abstract: The paper deals with measuring results owing to utility of selected non-destructive methods of testing paving blocks (ultrasonic pulse method (UPM) and Schmidt impact hammers) and blended cements (UPM) for strength. Tried testing methods, procedures of results evaluation as well as calibration relations for detection of material strength from parameter of non-destructive testing are presented. Calibration relations show very tight correlation between testing parameter and the relevant strength. Real utility of NDT methods for strength testing of paving blocks and cements is proved. Thus, preconditions for usage for rationalisation of experimental works, particularly connected with development of cements, are available.

Keywords: nondestructive testing; NDT; concrete paving blocks; cement; strength detection; ultrasonic pulse method; UPM; Schmidt impact hammers; blended cements; calibration; material strength.

DOI: 10.1504/IJMMP.2006.011644

International Journal of Microstructure and Materials Properties, 2006 Vol.1 No.3/4, pp.282 - 296

Published online: 07 Dec 2006 *

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