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@article{2394822, author = {Brabec, Marek and Krmíček, Lukáš}, article_number = {4}, doi = {http://dx.doi.org/10.1520/JTE20230628}, keywords = {Schmidt hammer; rebound hardness; core-size effect; greywacke}, language = {eng}, issn = {0090-3973}, journal = {Journal of Testing and Evaluation}, title = {Schmidt Rebound Hardness Dependence on the Core-Size: A Correction Model Presented and Tested on Greywacke}, url = {https://www.astm.org/jte20230628.html}, volume = {52}, year = {2024} }
TY - JOUR ID - 2394822 AU - Brabec, Marek - Krmíček, Lukáš PY - 2024 TI - Schmidt Rebound Hardness Dependence on the Core-Size: A Correction Model Presented and Tested on Greywacke JF - Journal of Testing and Evaluation VL - 52 IS - 4 SP - 1-12 EP - 1-12 PB - ASTM International SN - 00903973 KW - Schmidt hammer KW - rebound hardness KW - core-size effect KW - greywacke UR - https://www.astm.org/jte20230628.html N2 - We determined the effect of the core sample dimensions on the measured values of the Schmidt rebound hardness and proposed a way to correct it to obtain unaffected value. The effect was previously investigated on cubes, where a clear dependence of the rebound hardness on the cube edge was proved. For cylindrical bodies, however, the problem is more complex. In order to determine and verify our model, a set of cylindrical samples was made from greywacke. After applying the correction, an improvement in the mean rebound hardness of the whole set was achieved from 80 to 98.8 % of the unaffected mean rebound value. ER -
BRABEC, Marek and Lukáš KRMÍČEK. Schmidt Rebound Hardness Dependence on the Core-Size: A Correction Model Presented and Tested on Greywacke. \textit{Journal of Testing and Evaluation}. ASTM International, 2024, vol.~52, No~4, p.~1-12. ISSN~0090-3973. Available from: https://dx.doi.org/10.1520/JTE20230628.
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