Laboratory Study of Engineering Properties of Flowable Backfill Material

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Abstract:

Aimed at the common problems of small backfill space, hard to backfill, difficult to guarantee compaction quality in engineering, development law of fluidity and mechanical properties (unconfined compressive strength and cleavage strength) is analyzed by changing mix ratio of cement, fly ash and water. Fluidity is mainly controlled by water content. Range of fluidity is significantly different when water content is around 60%.Considering the effect of economy and strength, 4% cement content will be recommended.

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Periodical:

Advanced Materials Research (Volumes 955-959)

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2809-2812

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June 2014

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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