Study on the Cementitious Proportion of Cemented Mine Tailings

Abstract:

The cementation technology to deal with the mine tailings is adding cementation material and then dehydrating tailings and piling on suitable spot. In order to find the law of the mixing ratio of the cementitious material of the mine tailings of Xishimen Iron Mine, Portland cement and cementitious material A are selected to be compared in the experiment of strength test of cementation of the mine tailings of Xishimen Iron Mine. The result shows that both kinds of cementitious materials can meet the needs when the mixing ratio is 2-3%, but the cementation performance of material A is better than Portland cement. The experiment of adding admixture to improve the cementation performance of material A is carried and the result shows that Na₂CO₃ and KAl(SO₄)₂•12H₂O can improve the strength of cemented whole tailings while Na₂SO₄ , CaSO₄ and Na₂SiO₃is helpless to improve the strength.

• Periodical: Applied Mechanics and Materials (Volumes 395-396)
• Pages: 499-502
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.395-396.499
• Online since: September 2013
• Authors: Yun Bing Hou, Bo Peng, Bing Wen Wang, Hui Yu, Xin Jie Kong, Ling Gen Kong
• Keywords: Admixture, Cementation, Mine Tailings, Mixing Ratio of Cementitious Material

References

[1] Y.B. Hou, S.X. Wei. Tailings consolidation discharge technology , Metal Mine, Vol. 6 (2011), pp.59-62.

[2] Y.Q. Liu, C.Y. Li, B. Wang. Dry tailing pile pressure filtration technology in the Jinling Iron Mine, " Proceedings of 2006 resource conservation of National Metal ore and efficient beneficiation processing academic research and technological achievements Seminar. Ma, anshan: Metal Mine, 2006, pp.478-481.

[3] X.Y. Xie, Q. Tian, Y.H. Wang. Safety analysis of tailing dams and management countermeasures , Safety Science and Technology of China, Vol. 5 (2009), pp.5-9.

[4] Z.X. He, S.X. Tian, L.J. Sui, etc. Mine tailings discharge status and effective way of disposal, Mining Technology, Vol. 8 (2008), pp.78-80.

[5] J.R. Zheng, H.H. Sun. Research status and development trend of mine filling cementitious materials, Nonferrous Metals (Mining Section), Vol. 52 (2000), pp.12-15.