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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Strain is not typically measured; therefore a stress-strain curve is not produced. Thus, the strength values determined are in terms of total stress and are not corrected for pore pressures. In the triaxial mode, a water pressure gradient may be applied to the specimen Therefore, laboratory values for intact specimens must be employed with proper judgment in engineering applications.
Semi-automatic Uniaxial and Triaxial test system.
This standard does not purport to address all of the safety concerns, if any, associated with its use. Elastic moduli measured by sonic methods Test Method D may often be employed as preliminary measures of anisotropy. Link to Active This link will always route to the current Active version of the standard.
It performs either uniaxial or triaxial tests under Methods A and B determine the triaxial compressive strength at different pressures and Methods C and D determine the unconfined, uniaxial strength. Platens surface hardness certificate The standards prescribe a minimum surface hardness depending on the type of test to be performed.
It is the responsibility of the user of this standard to establish appropriate safety and health practices asym determine the applicability of regulatory limitations prior to use. Rock mechanics – Uniaxial and triaxial test systems: Agencies that meet the criteria asmt Practice D are generally considered capable of competent and objective testing. In addition, they are representative of the significant digits that generally should be retained. This option is identified by the Certificate code shown on the following table.
ASTM D, Test equipment Controls
asrm Active view current version of standard. This test method does not include the procedures necessary to obtain a stress-strain curve beyond the ultimate strength.
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. Rock mechanics – Accessories for uniaxial and triaxial tests: The test system comprehends: Concrete – Upgradings for Compression Testers: The tests provide data in determining the strength of rock, namely: Deformation and strength of rock are known to be functions of confining pressure.
Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the 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.
Link to Active This link will always route to the current Active version of the standard. Historical Version s – view previous versions of standard. Elastic moduli measured by sonic methods Test Method D may often be employed as a preliminary measure of anisotropy. The elastic moduli for such rocks should be determined from unload-reload cycles, that are not covered by this test method. Maintenance Spares Technical trainings Warranty Academy. The elastic moduli for such rocks should be determined from unload-reload cycles that are not covered by these test methods.
ASTM D7012 – 14e1
The original four standards are now referred to as Methods in this standard. The elastic constants Methods B and D are used to calculate the stress and deformation in rock structures.
Users of this standard are cautioned that compliance with Practice D does not in itself ensure reliable results.