The relation between uniaxial compressive and Brazilian tensile strength

J. Rostami, S. Kahraman, X. Yu, H. Copur, C. Balci, W. Bamford, B. Asbury

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

4 Citations (Scopus)

Abstract

Uniaxial compressive strength (UCS) and the Brazilian tensile strength (BTS) are the most commonly used rock properties. The UCS/BTS ratio is used as an indicator of rock brittleness and to estimate UCS from BTS (or vice versa). However, the relation between UCS and BTS has not been investigated in detail. This paper focuses on UCS/BTS ratio using the raw data pertaining to 1842 rock types from different research institutes. Regression analysis indicated that power law or exponential relations offers a better best fit correlation between UCS and BTS for each data set from different institute than linear function which has been typically offered in the past. Power function was also found to offer a better relationship between UCS and BTS for the all data under evaluation. The correlation coefficient of power function (r=0.79) was higher than that of the linear function (r=0.64).

Original languageEnglish
Title of host publicationRock Mechanics and Rock Engineering
Subtitle of host publicationFrom the Past to the Future
EditorsResat Ulusay, Mehmet Ali Hindistan, Ergün Tuncay, Ömer Aydan, Hasan Gerçek
PublisherCRC Press/Balkema
Pages147-152
Number of pages6
ISBN (Print)9781138032651, 9781138032651
DOIs
Publication statusPublished - 2016
EventInternational Symposium on International Society for Rock Mechanics, ISRM 2016 - Cappadocia, Turkey
Duration: 29 Aug 201631 Aug 2016

Publication series

NameRock Mechanics and Rock Engineering: From the Past to the Future
Volume1

Conference

ConferenceInternational Symposium on International Society for Rock Mechanics, ISRM 2016
Country/TerritoryTurkey
CityCappadocia
Period29/08/1631/08/16

Bibliographical note

Publisher Copyright:
© 2016 Taylor & Francis Group, London.

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