SYMPOSIA PAPER Published: 01 January 1978
STP35682S

Errors Associated with Rate of Undrained Cyclic Testing of Clay Soils

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A wide range of cyclic testing rates can be applied to specimens of clay soil depending on the particular test objective. A group of factors which influence the results of these tests is identified and the significance of these factors on test results is demonstrated. Undrained creep effects and air diffusion through membranes surrounding the test specimen are major factors, and methods are described to correct or control these errors. Nonuniform conditions within the test specimen are also significant in some tests. Illustrations of the potential errors and corrections are presented.

There is no cyclic loading rate which has a clear advantage over other rates, although for particular purposes there is a clear preference.

Author Information

Sangrey, DA
School of Civil and Environmental Engineering, Cornell University, Ithaca, N.Y.
Pollard, WS
School of Civil and Environmental Engineering, Cornell University, Ithaca, N.Y.
Egan, JA
Woodward-Clyde Consultants, Houston, Tex.
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Details
Developed by Committee: D18
Pages: 280–294
DOI: 10.1520/STP35682S
ISBN-EB: 978-0-8031-4724-9
ISBN-13: 978-0-8031-0326-9