Materials and Structures

, Volume 46, Issue 1–2, pp 327–336 | Cite as

Selective dissolution and cementitious property evaluation of converter steel slag

  • Zaibo Li
  • Sanyin Zhao
  • Xuguang Zhao
  • Tusheng He
  • Meifeng Yan
Original Article


High-efficiency recovery and utilization of steel slag are important concerns for environmental protection and sustainable development. To establish a method for rapid evaluation of cementitious property of steel slag, selective dissolution tests of converter steel slag were performed in a compound solution consisting of acetone, salicylic acid, and methanol. Feasible experimental conditions, repeatability and mechanism, were investigated. The relationship between selective dissolution behavior and cementitious property (represented as mortar compressive strength) was analyzed. The compound solution selectively dissolved calcium silicate minerals in steel slag satisfactorily and most of the mass fraction of (CaO + SiO2) to the total dissolved matter from steel slag is as high as 94 to 98 %. The dissolution experiment had good repeatability. A significant linear relationship between the mass percentage of the dissolved matter from steel slag and the mortar compressive strength increment of the cementitious material prepared from reference cement and steel slag was observed. The linear correlation coefficient was more than 0.99. Therefore, selective dissolution in a compound solution can be used for rapidly predicting the cementitious property of converter steel slag.


Steel slag Cementitious property evaluation Dissolution Utilization 



This study and the completion of this paper were supported by the National Program on Key Basic Research Project (973 Program) of China (Project No. 2009CB623104) and National Natural Science Foundation of China (Project No. 51172145).


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Copyright information

© RILEM 2012

Authors and Affiliations

  • Zaibo Li
    • 1
  • Sanyin Zhao
    • 1
  • Xuguang Zhao
    • 1
  • Tusheng He
    • 1
  • Meifeng Yan
    • 1
  1. 1.School of Chemistry and Environment EngineeringShaoguan UniversityShaoguanPeople’s Republic of China

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