Please use this identifier to cite or link to this item: 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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