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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When required, the hardness verification is performed with certified instruments. 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.

This option is identified by aetm Certificate code shown on the following table.

Link to Active This link will always route to the current Active version of the standard. Strain is not typically measured; therefore a stress-strain curve is not produced. Link to Active This link will always route to the current Active version of the standard. It is beyond the scope of this standard to consider significant digits used in analytical methods for engineering design.

It should be observed that this method makes no provision for pore pressure measurements and specimens are undrained platens are not vented.

This test method does not include the procedures necessary to obtain a stress-strain curve beyond the ultimate strength.

Deformation and strength of rock are known to be functions of confining pressure. The elastic moduli for such rocks should be determined from unload-reload cycles, that are not covered by this test satm.

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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. The 2 consoles are operated independently and the 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.

Home Products Search results Results for: Elastic moduli measured by sonic methods Test Method D may often be employed as preliminary measures of anisotropy. Rock mechanics – Uniaxial and triaxial test 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.

ASTM D, Test equipment Controls

These methods make no provision for pore pressure measurements and specimens are undrained wstm are not vented. Agencies that meet the criteria of Practice D are generally considered capable of competent and objective testing.

No other units of measurement are included in this standard.

Maintenance Spares Technical trainings Warranty Academy. Follow us Asm LinkedIn. Historical Version s – view previous versions of standard. Reliable results depend on many factors; Practice D provides a means for evaluating some of those factors. It is desirable to conduct tests in the plane of foliation, cleavage or bedding and at right angles to it to determine the degree c7012 anisotropy.

Active view current version of standard. Iva Company info Privacy policy Therefore, laboratory values for intact specimens must be employed with proper judgment in engineering applications.

Methods A and B determine the triaxial compressive strength at different pressures and Methods C and D determine the unconfined, uniaxial strength.

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The original four standards are now referred to as Methods in this standard. The test method specifies the apparatus, instrumentation, and procedures for determining the stress-axial strain and the stress-lateral strain curves, as well as Young’s modulus, Eand Poisson’s ratio.

Platens surface hardness certificate The standards prescribe a minimum surface hardness depending on the type of test to be performed. It performs either uniaxial or triaxial tests under 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. The elastic constants Methods B and D are used to calculate the stress and deformation in rock structures.

Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. Temperature Variation— Applies to any of the methods and allows for testing at temperatures above or below room temperature.

ASTM D7012 – 14e1

Rock mechanics – Accessories for uniaxial and triaxial tests: Gshear modulus,Kbulk modulus, EYoung’s modulus, and Poisson’s ratio. Elastic moduli measured by sonic methods Test Method D may often be employed as a preliminary measure of anisotropy.

In addition, they are representative of the significant digits that generally should be retained. The tests provide data in determining the strength of rock, namely: