Preparation of Belite Cement Utilizing Iron Tailings with Low Silica Content

Abstract

Abstract: Belite cement prepared by iron tailings from Hubei province was studied, the effects of the ratio of raw materials, the calcining temperature, the activator gypsum on the properties of cement clinker were also investigated.The results show that the belite cement with compression strength meet the requirements of PI42.5R cement at the age of 3 and 28 d could be prepared in the optimum condition of 30.90% iron tailings, 69.10% limestone, and 0.60% activator gypsum equivalent the mass of clinker, calcining 1h under 1 350 ℃.The result of XRD of clinker present the same main mineral with the conventional Portland cements, besides the more content of belite mineral.

Key words: Iron tailings, Belite cement, Gypsum

SHI Wei, ZHANG Yi-Min, CHEN Tie-Jun, LIU Tao, LUO Wen-Bin. Preparation of Belite Cement Utilizing Iron Tailings with Low Silica Content[J]. Metal Mine, 2012, 41(07): 165-168.

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