ASTM D 3080 - 04 Standard Test Method for Direct Shear Test of Soils Under Consolidated Drained Conditions

American Society for Testing and Materials (ASTM). Current edition approved Nov. 1, 2004. Published December 20043. 7 p. This test method covers the determination of the consolidated drained shear strength of a soil material in direct shear. The test is performed by deforming a specimen at a controlled strain rate on or near a single shear plane determined by the configuration of the apparatus. Generally, three or more specimens are tested, each under a different normal load, to determine the effects upon shear resistance and displacement, and strength properties such as Mohr strength envelopes.