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https://hdl.handle.net/11499/30067
Title: | Comparative investigation of Shore, Schmidt, and Leeb hardness tests in the characterization of rock materials | Authors: | Çelik, Sefer Beran Çobanoğlu, İbrahim |
Keywords: | Leeb hardness Natural building stones Schmidt hardness Shore hardness Uniaxial compressive strength Building materials Compressive strength Hardness testing Lime Limestone Metamorphic rocks Water absorption Dry unit weight Metallic material Physical and mechanical properties Precise measurements Hardness building stone compressive strength construction material hardness mechanical property porosity rock mechanics testing method |
Publisher: | Springer Verlag | Abstract: | Prediction of physical and mechanical properties of rock materials using rebound-based hardness test methods is widely preferred in many fields of engineering and in the characterization of rock materials, because they are non-destructive, practical, and economical. In this study, 40 types of rocks with magmatic, metamorphic, and sedimentary origins, represented by travertine, limestone, marble, dolomite, granite, syenite, dunite, andesite, schist, gabbro, tuff, and ignimbrite were selected. First, dry unit weight (?d), open porosity (no), water absorption by weight (WAW), wide wheel abrasion (WA), and uniaxial compressive strength values were determined. After that, Shore C-2 scleroscope (HSC), L-type Schmidt hammer (HSL), and Leeb (HLD) rebound-based hardness tests were carried out on all samples, and then, hardness values by three methods were compared with the obtained parameters. The Leeb hardness test, which is more recent and innovative than the Shore and Schmidt hardness tests, was initially developed for metallic materials. However, the method has become increasingly popular in the determination of hardness of rock materials in laboratory as well as in field. In this study, the Leeb hardness test was found to be more useful due to its quick and precise measurement capabilities compared to Shore and Schmidt hardness tests. The results of the study reveal that the prediction of physical and mechanical properties of rocks can more precisely be determined by the HLD method than the HSL and HSC methods using the proposed equations. © 2019, Springer-Verlag GmbH Germany, part of Springer Nature. | URI: | https://hdl.handle.net/11499/30067 https://doi.org/10.1007/s12665-019-8567-7 |
ISSN: | 1866-6280 |
Appears in Collections: | Mühendislik Fakültesi Koleksiyonu Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection |
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