Journal of Shanghai University(Natural Science Edition) ›› 2013, Vol. 13 ›› Issue (5): 448-453.doi: 10.3969/j.issn.1007-2861.2013.05.002

• Environmental and Chemical Engineering • Previous Articles     Next Articles

Performance of Blast Furnace Slag Cement Mixed with Steel Slag

YAN Li-jun1,2, GE Tan-tan1, ZHANG Jie-yu3, ZHU Jun-hong4,YAN Xiao-juan1, HE Chen1, WANG Jun-xi1, HU Xue-feng1   

  1. 1. School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China;
    2. Academy of Recycling Economy, Shanghai University, Shanghai 200072, China;
    3. School of Materials Science and Engineering, Shanghai University, Shanghai 200072, China;
    4. New Product Development and Application Center, Nanjing Iron and Steel Co., Ltd., Nanjing 210035, China
  • Received:2012-12-25 Online:2013-10-28 Published:2013-10-28

Abstract: Compressive strength tests of concrete specimens were made using different components of steel slag. The pH values of concrete specimens in water was determined after certain curing. Relationship between compressive strength and hydration reaction in various components of steel slag was analyzed. Experimental results show that the optimal steel slag-mixing ratio is 20%. The compressive strength of concrete decreases as the steel slag-mixing ratio is over 30%. The pH values of concrete differs significantly with the steel slag mixed and carbonization time of concrete specimens mainly because steel slag contains a reasonable amount of the low-Fe-Al phase.

Key words: concrete, pH value, steel slag, strength

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