Transcription of Suggested Methods for Determining the Uniaxial …
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Suggested Methods for Determining Compressive Strength and Deformability 137 Suggested Methods for Determining the Uniaxial Compressive Strength and Deformability of Rock Materials PART 1. Suggested METHOD FOR DETERMINATION OF THE Uniaxial COMPRESSIVE STRENGTH OF ROCK MATERIALS 1. SCOPE This method of test is intended to measure the uni- axial compressive strength of a rock sample in the form of specimens of regular geometry. The test is mainly intended for strength classification and characterization of intact rock. 2. APPARATUS (a) A suitable machine shall be used for applying and measuring axial load to the specimen. It shall be of sufficient capacity and capable of applying load at a rate conforming to the requirements set in Section 3. It shall be verified at suitable time intervals and shall comply with accepted national requirements such as prescribed in either ASTM Methods E4: Verification of Testing Machines or British Standard 1610, Grade A or Deutsche Normen DIN 51 220, DIN 51 223, Klasse 1 and DIN 51 300.
138 International Society for Rock Mechanics recorded in newtons (or kilonewtons and mega- newtons where appropriate) to within l°~o.
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