Research on Preparation and Properties of Backfilling Cementation Material Based on Blast Furnace Slag

Shu Gang Hu; Xian Jun Lu; Hai Li Niu; Zi Qiao Jin

doi:10.4028/www.scientific.net/AMR.158.189

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 158Research on Preparation and Properties of...

Research on Preparation and Properties of Backfilling Cementation Material Based on Blast Furnace Slag

Abstract:

The blast-furnace slag (BFS) has been characterized by chemical and phase composition to evaluate its hydration reactivity. It has high potential activity for its glassy structure, so its use to prepare new filling cementation material is possible. New backfilling cementation material composition has been formulated and optimized by activation of BFS. The optimal formula of new backfilling cementation material SL(Slag activated by lime) and SLG(Slag activated by lime and desulfurization gypsume) was 87% BFS ,13% lime and 78.4% BFS, 11.8% lime, 9.8% desulfurization gypsume respectively. Finally, the feature of cementation properties was analyzed through comparison between new cementation material and ordinary Portland cement with compressive strength, water requirement of normal consistence, setting time, bleeding water and slump. The result showed that material SL and SLG have superior performance to ordinary Portland cement used to mining cemented filling.

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Periodical:

Advanced Materials Research (Volume 158)

Pages:

189-196

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.158.189

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Online since:

November 2010

Authors:

Shu Gang Hu, Xian Jun Lu, Hai Li Niu, Zi Qiao Jin

Keywords:

Backfilling, Blast Furnace Slag (BFS), Cementation Material, Ordinary Portland Cement

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