Mechanical properties of bentonite-sand mixtures under triaxial stress condition

Book · Sun Dec 31 04:00:00 EST 1995

OSTI ID:377931

Umedera, M ^[1]; Fujiwara, A ^[2]; Yasufuku, N; Hyodo, M; Murata, H ^[3]

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1. Sumitomo Metal Mining Co., Ltd., Tokyo (Japan)
2. Radioactive Waste Management Center, Tokyo (Japan)
3. Yamaguchi Univ., Ube, Yamaguchi (Japan)

A series of triaxial compression tests is being conducted under the drained condition on bentonite and sand mixtures, known as buffer, in saturated and optimum water content states to clarify the mechanical properties of the buffer. It was found that the mechanical properties of bentonite and sand mixtures are strongly influenced by water and bentonite contents; shear strength in a saturated state is less than that in an optimum water content state; shear strength decreases rapidly with increasing bentonite content. Strength properties are much dependent on confining pressure.

• OSTI ID: 377931
• Report Number(s): CONF-941075--; ISBN 1-55899-253-7
• Country of Publication: United States
• Language: English

Related Subjects

05 NUCLEAR FUELS
36 MATERIALS SCIENCE
BACKFILLING
BENTONITE
BUFFERS
CONTAINMENT SYSTEMS
EXPERIMENTAL DATA
HIGH-LEVEL RADIOACTIVE WASTES
MATRIX MATERIALS
MECHANICAL PROPERTIES
MECHANICAL TESTS
PERMEABILITY
RADIOACTIVE WASTE DISPOSAL
RADIOACTIVE WASTE FACILITIES
SAND
SHEAR PROPERTIES
UNDERGROUND DISPOSAL
WATER SATURATION