Accession Number : AD0779714

Title :   The Effect of Pore Water Freezing on the Strength of Pierre Shale.

Descriptive Note : Final rept. Dec 71-Dec 73,

Corporate Author : UTAH UNIV SALT LAKE CITY DEPT OF MECHANICAL ENGINEERING

Personal Author(s) : Brown,Wayne S. ; Swanson,Stephen R.

Report Date : APR 1974

Pagination or Media Count : 28

Abstract : Triaxial compression tests were performed on Pierre shale to determine the effect of freezing on the strength of saturated rock. Triaxial tests were conducted at pressure up to 70 ksi and temperatures of 10F. A significant strengthening effect was seen when the pore water was frozen. The strength of saturated Pierre shale was increased by approximately a factor of 4 at 70 ksi by freezing the pore water, although this was still less than the strength of nonsaturated shale at this condition. (Author)

Descriptors :   *Shale, *Freezing, *Rock mechanics, Triaxial stresses, Moisture

Subject Categories : Geology, Geochemistry and Mineralogy

Distribution Statement : APPROVED FOR PUBLIC RELEASE