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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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. Thus the strength values determined are in astmm of total stress, that is, are not corrected for pore pressures. Follow us YouTube LinkedIn.

ASTM D, Test equipment Controls

Semi-automatic Uniaxial and Triaxial test system. Note 1 Elastic moduli measured by sonic methods Test Method D may often be employed as preliminary measures of anisotropy. Home Products D70122 results Results for: 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.

No other units of measurement are included in this standard.

Link to Active This link will always route to the current Active version of the standard. Active view current version of standard. These methods make no provision for pore pressure measurements and specimens are undrained platens are not vented.

The elastic moduli for such rocks should be determined from unload-reload cycles that are not covered by these test methods. Maintenance Spares Technical trainings Warranty Academy. Rock mechanics – Highly advanced rock testing systems: Therefore, laboratory values for intact specimens must be employed with proper judgment in engineering applications. This test method does not include the procedures necessary to obtain a stress-strain curve beyond the ultimate strength.

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Hoek cells and sample extruder The Hoek triaxial cells are offered in five models of different size; each one consists of the following: Elastic moduli measured by sonic methods Test Method D may often be employed as preliminary measures of anisotropy.

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. Thus, the strength values determined are in terms of total stress and are not corrected for pore pressures.

The quality of the result produced by this standard is dependent on the competence of the personnel performing it, and the suitability of f7012 equipment and facilities used. The Rock core should have a diameter from Agencies that meet the criteria of Practice D are generally considered capable of competent and objective testing.

Platens surface hardness certificate The standards prescribe a zstm surface hardness depending on the type of test to be performed. This standard does not purport to address all of the safety concerns, if any, associated with its use. Temperature Variation— Applies to any of the methods and allows for testing at temperatures above or below room temperature. Gshear modulus,Kbulk modulus, EYoung’s modulus, and Poisson’s ratio.

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 tests provide data in determining the strength of rock, namely: This option is identified by the Certificate code shown on the following table. It should be observed that this method makes no provision for pore pressure measurements and specimens are undrained platens are not vented.

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ASTM D7012 – 14e1

In addition, they are representative of the significant digits that generally should be retained. These test methods do not include the procedures necessary to obtain a stress-strain curve beyond the ultimate strength. Rock mechanics – Accessories for uniaxial and triaxial xstm Link to Active This link will always route to the current Active version of the standard.

Elastic moduli measured by sonic methods Test Method D may often be employed as a aetm measure of anisotropy. The 2 consoles are operated independently and the Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.

Users of this standard are cautioned that compliance with Practice D does not in itself ensure reliable results. Iva Company info Privacy policy 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.

Methods A and B determine the triaxial compressive strength at different pressures and Methods C and D determine the unconfined, uniaxial strength. When required, the hardness verification is performed with certified instruments. Deformation and strength of rock are known to be functions of confining pressure. It performs either uniaxial or triaxial tests under It is beyond the scope of this standard to consider significant digits used in analytical methods for engineering design.