NDLI: A Review of the Tensile Strength of Rock: Concepts and Testing

Content Provider	Springer Nature Link
Author	Perras, Matthew A. Diederichs, Mark S.
Copyright Year	2014
Abstract	A review of the tensile strength of rock was conducted to determine the relationship between direct tensile strength (DTS) and Brazilian tensile strength (BTS) and to examine the validity of estimating tensile strength from other measured properties, such as the crack initiation (CI) threshold. A data set was gathered from the existing literature where tensile values could be reliably correlated with unconfined compressive strength or CI values. It was determined that the BTS obtained in standard testing is generally greater than the equivalent DTS and that this relationship is rock type dependent. CI yields a reasonable estimate of tensile strength and this correlation is improved when the BTS values are reduced to DTS values by rock type specific correlations. The factor f, in DTS = f BTS, can be considered to be approximately 0.9 for metamorphic, 0.8 for igneous and 0.7 for sedimentary rocks. The relationships presented demonstrate that there is wide scatter in the available data for estimating tensile strength likely due to both specimen variability and testing configuration, including platen geometry and relative stiffness. Estimates of tensile strength should only be used for preliminary design purposes and measurements should be made to confirm preliminary assumptions for each design.
Starting Page	525
Ending Page	546
Page Count	22
File Format	PDF
ISSN	09603182
Journal	Geotechnical and Geological Engineering
Volume Number	32
Issue Number	2
e-ISSN	15731529
Language	English
Publisher	Springer International Publishing
Publisher Date	2014-01-30
Publisher Place	Cham
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Laboratory testing Direct tensile Indirect tensile Brazilian tensile Unconfined compressive strength Crack initiation Geotechnical Engineering & Applied Earth Sciences Hydrogeology Terrestrial Pollution Waste Management/Waste Technology Civil Engineering
Content Type	Text
Resource Type	Article
Subject	Soil Science Geology Architecture Geotechnical Engineering and Engineering Geology

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