Fluidity and Mechanical Behavior of Cement Solidified Lead-Zinc Mine Tailings

Abstract:

Cemented paste backfill method has been widely used in many modern mines throughout the world due to the increasingly stringent environmental regulations and short of disposal land. This study presents experimental results on the use of Portland cement in the solidification of Pb-Zn tailings in China. Test results show UCS strength increase lineally with cement content, tailings concentration, and curing time, respectively. There exist a minimum cement content and tailings concentration to produce obvious strength. The fluidity decrease quickly with cement proportion and tailings concentration, under the satisfying of a minimum pumping fluidity, the increase of tailings concentration can effectively reduce the cement consumption so as to decrease the treatment cost.

• Periodical: Advanced Materials Research (Volume 898)
• Pages: 383-386
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.898.383
• Online since: February 2014
• Authors: Chun Lei Zhang*, Shun Cai Wang, Fan Lu Min
• Keywords: Cement Solidification, Fluidity, Tailings, Unconfined Compressive Strength

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