Compaction test of bentonite-sand mixtures with vibratory roller
Book
·
OSTI ID:113115
- Shimizu Corp., Tokyo (Japan)
- Mitsui Construction Co., Ltd., Tokyo (Japan)
- Radioactive Waste Management Center, Tokyo (Japan)
Mixture of bentonite and sand has been proposed as one of the candidate filling materials for backfilling disposal caverns in the radioactive waste disposal system. In the actual application at the engineering level, the filling material will probably be spread in thin layer over the floor of the disposal cavern and compacted using a mechanical means. The authors conducted a compaction test on bentonite-sand mixture using a combined vibratory roller weighing about 4 tons and measuring 1.3 m in roller width. Filling materials with bentonite contents at three different levels, i.e. 10%, 20% and 30%, were manufactured on a plant-scale for the amount of 45 tons respectively; the mixtures were compacted in a test trench made of concrete and measuring 2 m in width, 20 m in length and 1 m in depth. The spreading thickness (measured prior to compaction) was set at 10 cm. Compacted samples were examined for permeability coefficient, mechanical property constants and consolidation characteristics.
- OSTI ID:
- 113115
- Report Number(s):
- CONF-930906--; ISBN 0-7918-0691-X
- Country of Publication:
- United States
- Language:
- English
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