TRIAXIAL AND SHEAR TESTING OF SELECTED BACKFILL MATERIALS [electronic resource].

Published: Washington, D.C. : United States. Dept. of Energy, 2000.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Additional Creators: United States. Department of Energy. Yucca Mountain Project Office, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information

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Summary

The Subsurface Performance Testing Section is performing tests in the Department of Energy's Atlas Facility to evaluate the performance of various backfill materials. Triaxial and shear tests were conducted on select backfill materials. The specific materials tested were: crushed tuff, overton sand, 4- 10 silica sand, 1/4'' dolostone/marble, and limestone. The objective of this report is to provide an estimated value for Poisson's ratio, determine internal friction angle, and stress-strain modulus of the backfill materials that were tested. These basic parameters are necessary for the selection of a backfill material to be included in the repository. This report transmits the results in both hardcopy and electronic formats plus describes the methodology and interpretation of the results. No conclusions will be drawn about the test results, as this will be the purview of other reports. The scope of this report is to use the triaxial and shear testing information and calculate, the internal friction angle, stress-strain modulus, and provide an estimate of Poisson's ratio (Sowers 1979, p. 199) of the selected backfill materials. Standard laboratory procedures, mentioned in Section 2 of this report, were used.

Report Numbers

E 1.99:tdr-ebs-md-000011, rev 00
tdr-ebs-md-000011, rev 00

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Note

Published through SciTech Connect.
08/07/2000.
"tdr-ebs-md-000011, rev 00"
"MOL.20000811.0143, DT#24847"
N. E. Kramer.

Funding Information

DE-AC08-91RW00134

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