Predicting the compressive and tensile strength of rocks from indentation hardness index

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dc.authorid0000-0001-7903-143X
dc.contributor.authorKahraman, S.
dc.contributor.authorFener, M.
dc.contributor.authorKozman, E.
dc.date.accessioned2019-08-01T13:38:39Z
dc.date.available2019-08-01T13:38:39Z
dc.date.issued2012
dc.departmentNiğde ÖHÜ
dc.description.abstractThe prediction of rock properties from indirect testing methods is important, particularly for preliminary investigations since indirect tests are easier and cheaper than the direct tests. In this study, we investigate the predictability of the uniaxial compressive strength (UCS) and Brazilian tensile strength (BTS) of rocks from the indentation hardness index (IHI) obtained using point load apparatus. Forty-six different rock types, 14 of which were igneous, 15 were metamorphic, and 17 were sedimentary were tested in the laboratory. The UCS and BTS values were correlated with the corresponding IHI values and the results were statistically analysed. The influence of rock classes on the relationships was also investigated. A strong correlation between UCS and IHI was found for all data. The correlation between BTS and IHI is not as strong as the correlation between UCS and IHI.However, it is in the acceptable limits. When the regression analyses were repeated for igneous, metamorphic, and sedimentary rocks, the correlation coefficients were generally increased. The results show the UCS and BTS can be estimated from IHI. In addition, the effect of rock classes on the relationships between IHI and both UCS and BTS is important.
dc.identifier.endpage339
dc.identifier.issn2225-6253
dc.identifier.issue5
dc.identifier.scopus2-s2.0-84863691785
dc.identifier.scopusqualityQ3
dc.identifier.startpage331
dc.identifier.urihttps://hdl.handle.net/11480/4578
dc.identifier.volume112
dc.identifier.wosWOS:000307495500002
dc.identifier.wosqualityQ4
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthor[0-Belirlenecek]
dc.language.isoen
dc.publisherSOUTH AFRICAN INST MINING METALLURGY
dc.relation.ispartofJOURNAL OF THE SOUTHERN AFRICAN INSTITUTE OF MINING AND METALLURGY
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectuniaxial compressive strength
dc.subjectBrazilian tensile strength
dc.subjectindentation hardness index
dc.titlePredicting the compressive and tensile strength of rocks from indentation hardness index
dc.typeArticle

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