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Shear strength of a retorted and combusted oil shale solid waste

Conference · · Oil Shale Symposium Proceedings; (USA)
OSTI ID:6592086
;  [1]
  1. Wyoming Univ., Laramie, WY (USA). Dept. of Civil Engineering
The shear strength characteristics of a retorted and combusted Western oil shale are evaluated. Testing consisted of triaxial and unconfined compression tests, including tests in a high-pressure triaxial chamber to simulate high overburden stresses and a program to evaluate the time-dependent cementation of hydrated spent shale. The spent shale is a non-plastic silty sand with an optimum water content of 27 percent and a maximum dry density of 93 pcf (1490 kg/m{sup 3}). The effective stress friction angle is 38 degrees with minimal cohesion and the total stress strength parameters are a friction angle of 14 degrees and cohesion of 24 psi (165 kN/m{sup 2}). Unconfined compressive strength increased with increased curing time, initial water content, and dry density.
OSTI ID:
6592086
Report Number(s):
CONF-8904193--
Conference Information:
Journal Name: Oil Shale Symposium Proceedings; (USA) Journal Volume: 22
Country of Publication:
United States
Language:
English