ASTM D7012 PDF

ASTM D Standard Test Methods for Compressive Strength and Elastic Moduli of Intact Rock Core Specimens under Varying States of Stress and. ASTM D Method C. Reference. Uniaxial Compressive Strength of Intact Rock Core Specimens. (deg). Type. Failure Mode. Rock Type. Buy ASTM D TEST METHOD FOR COMPRESSIVE STRENGTH AND ELASTIC MODULI OF INTACT ROCK CORE SPECIMENS UNDER VARYING.

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It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Rock mechanics – Highly advanced rock testing systems: However, there are some cases where either the rock type or the loading condition of the problem under consideration will require the effective stress or drained parameters be determined.

Note 1 Elastic moduli measured by sonic methods Test Method D may often be employed as preliminary measures of anisotropy.

Hoek cells and sample extruder The Hoek triaxial cells are offered in five models of different size; each asmt consists of the following: The quality of the result produced by this standard is dependent on the competence of the personnel performing it, and the suitability of the equipment and facilities used. Deformation and strength of rock are known to be functions of confining pressure.

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The tests provide data in determining the strength of rock, namely: In the triaxial mode, a water pressure gradient may be applied to the specimen The 2 consoles are operated independently and the Platens surface hardness certificate The standards prescribe a minimum surface hardness depending on the type of test to be performed.

Link to Active This link will always route to the current Active version of the standard. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.

Method A, triaxial compression test, is commonly used to simulate the stress conditions under which most underground rock masses exist.

Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. When required, the hardness verification is performed with certified instruments.

Gshear modulus,Kbulk modulus, EYoung’s modulus, and Poisson’s ratio. Iva Company info Privacy policy Maintenance Spares Technical trainings Warranty Academy.

ASTM D, Test equipment Controls

Thus the strength values determined are in terms of total stress, that is, are not corrected for pore pressures. X7012 should be observed that this method makes no provision for pore pressure measurements and specimens are undrained platens are not vented.

Home Products Search results Results for: Therefore, laboratory values for intact specimens must be employed with proper judgment in engineering applications. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

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ASTM D7012 – 14e1

The Rock core should have a diameter from Follow us YouTube LinkedIn. It is beyond the scope of this standard to consider significant digits used in analytical methods for engineering design. Temperature Variation— Applies to any of the methods and allows for testing at temperatures above or d77012 room temperature.

Historical Version s – view previous versions of standard. It is desirable to conduct tests in the plane of foliation, cleavage or bedding and at right angles to it to determine the degree of anisotropy. Rock mechanics – Accessories for uniaxial and triaxial tests: The test system comprehends: These test methods do not include the procedures necessary to obtain a stress-strain curve beyond the ultimate strength.

It is v7012 to conduct tests in the plane of foliation, cleavage or bedding and at right angles to it to determine the degree of anisotropy. Rock mechanics – Uniaxial and triaxial test systems: