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Lab Services: Rock testing

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Test Method Title

Standard Test Method for Compressive Strength and Elastic Moduli of Intact Rock Core Specimens under Varying States of Stress and Temperatures

Reference Number

ASTM D7012B

Material

Rock

Test Property

Triaxial Compressive Strength, Young's Modulus, Poisson's ratio

Description of Test

A rock core sample is cut to length and the ends are machined flat. The specimen is placed in a triaxial loading chamber subjected to confining pressure and, if required, heated to the desired test temperature. Axial load is continuously increased on the specimen, and deformation is monitored as a function of load. Deformation and strength of rock are known to be functions of confining pressure. The triaxial compression test is commonly used to simulate the stress conditions under which most underground rock masses exist.

Preferred Test Sample Size

Rock core specimens

Number of Test Specimens

1 or more

Test Specimen Size

Right circular cylinder, with diameter of at least 1 7/8 in and a length to diameter ratio of 2 to 2.5

Keywords

Rock, Rock Strength, Rock Triaxial, Elastic Moduli

For more information, contact GeoTesting Express:



Atlanta

770.645.6575


Boston

978.635.0424


Chicago

224.676.1371


New York

212.566.6630



info@geotesting.com

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