Experimental study on the strength of soil-cement with additions of mineral powder and ferronickel slag powder Online publication date: Thu, 17-Sep-2020
by Feng Chen; Shenghao Tong
International Journal of Mining and Mineral Engineering (IJMME), Vol. 11, No. 3, 2020
Abstract: With the rapid development of soil-cement application technology, soil-cement is widely applied in mine development, such as mine road construction, pit repair, stope reinforcement and mine backfill, etc. In this paper, ferronickel slag powder and mineral powder are applied in soil-cement to study the impact of their content on the strength performance of soil-cement. The results show that the addition of ferronickel slag powder has a greater impact on the strength of soil-cement at the early age. However, with the increase of age, the strength decrease rate of soil-cement with ferronickel slag powder reduces. When ferronickel slag powder and granulated blast furnace slag are mixed, the performance of soil-cement at the early age is better than that with ferronickel slag powder alone. The optimal combination is that ferronickel slag powder accounts for 20%, among which the mineral powder replaces 30% of the ferronickel slag powder mass.
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