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BULLETIN OF THE CHINESE CERAMIC SOCIETY ›› 2023, Vol. 42 ›› Issue (12): 4332-4340.

• Solid Waste and Eco-Materials • Previous Articles     Next Articles

Research Progress on Effect of Steel Slag on Durability of Plateau Concrete

BAI Qing1, DENG Wei2, LU Fuyang2, ZHAI Jianliang2, LAI Hao2, MAO Nan2, SHI Changchun2, XIONG Rui2   

  1. 1. Qinghai Expressway Maintenance Service Co., Ltd., Xining 810021, China;
    2. School of Materials Science and Engineering, Chang’an University, Xi’an 710061, China
  • Received:2023-07-20 Revised:2023-08-25 Online:2023-12-15 Published:2023-12-12

Abstract: The extensive accumulation of steel slag poses a severe threat to ecological environment. Utilizing steel slag in concrete effectively enhances the utilization rate. Under the coupling effect of low pressure and drying, the low activity problem restricts the application and development of steel slag in plateau concrete. This study focuses on the unique characteristics of plateau climate and comprehensively reviews the impact of steel slag on the frost resistance, salt erosion resistance, and shrinkage resistance of plateau concrete. Additionally, it analyzes the properties of steel slag and summarizes the challenges associated with using steel slag as an admixture and aggregate. Through a thorough analysis of existing research, we find that appropriate pretreatment of steel slag and the addition of suitable mineral admixtures can enhance the reactivity of steel slag, promote the development of more compact concrete structures, and improve the applicability of steel slag in plateau concrete.

Key words: concrete, steel slag, plateau climate, durability, interface transition zone, pretreatment, mineral admixture

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