Advertisement

Mineralography and Comprehensive Utilization of Highly Activity Steel Slag

  • Ying Xu
  • Zizi Zhang
  • Yanqing Cai
  • Bian Wang
  • Chenguang Hu
Conference paper
Part of the Springer Proceedings in Energy book series (SPE)

Abstract

The traditional technical constraints made low utilization of the steel slag, which caused a waste of resources and polluted the environment, therefore, new methods are urgently needed to make full use of the waste steel slag. In this paper, quicklime, fly ash and slag were added to steel slag according to the proportioning principle of cement, and then reconstructed by high temperature calcination, finally the steel slag with highly activity was obtained. The study of comprehensive utilization of highly activity steel slag could reduce the accumulation of steel slag and improve the environmental quality. The theoretical contents of minerals in highly activity steel slag were calculated, and the XRD and mineragraphy were performed to analyze the reasons for the increased activity of steel slag. The results showed that there were more tricalcium silicate generated as the improving of calcium-silicate ratio, and there were more liquid phase and calcium aluminoferrite as the improving silica-alumina ratio, the increase of cementitious activity minerals in the steel slag made the cementitious activity improve in the steel slag. Wherein, the crystal defect made the minerals activity improve in the steel slag, and to further improve the cementitious activity of steel slag.

Keywords

Steel slag Utilization Highly activity Mineralography Environmental quality 

Notes

Acknowledgements

This research was supported by the financial support of National Natural Science Foundation of China (51574109), and Hebei provincial Key Laboratory of Inorganic Nonmetallic Materials, College of Materials Science and Engineering, North China University of Science and Technology.

References

  1. 1.
    P. Jian, Q. Dao, Y. Juan et al., Status and development of the comprehensive utilization of the steel slag at Baosteel. Baosteel Tech. Res. 5, 15–19 (2011)Google Scholar
  2. 2.
    W.P. Zhang, S.J. Hao, W.F. Jiang et al., Study of comprehensive utilization on the steel slag. J. Appl. Biomater. 488489, 137–140 (2014)Google Scholar
  3. 3.
    X.L Yang, H.X. Dai, X. Li et al., Comprehensive utilization and discussion of iron and steel metallurgical slag. Adv. Mater. Res. 807809, 2328–2331 (2013)Google Scholar
  4. 4.
    B. Fronek, P. Brad, N. Delatte, Steel slag aggregate used in Portland cement concrete. Transp. Res. Rec. J. Transp. Res. Board 2267-1, 37–42 (2012)Google Scholar
  5. 5.
    X.L. Guo, H. Shi, Modification of steel slag powder by mineral admixture and chemical activators to utilize in cement-based materials. Mater. Struct. 46, 1265–1273 (2013)Google Scholar
  6. 6.
    N. Palankar, A.U.R. Shankar, B.M. Mithun, Durability studies on eco-friendly concrete mixes incorporating steel slag as coarse aggregates. J. Clean. Prod. 129, 437–448 (2016)Google Scholar

Copyright information

© Springer Nature Singapore Pte Ltd. 2018

Authors and Affiliations

  • Ying Xu
    • 1
  • Zizi Zhang
    • 1
  • Yanqing Cai
    • 1
  • Bian Wang
    • 1
  • Chenguang Hu
    • 1
  1. 1.College of Material Science and Engineering, North China University of Science and TechnologyTangshanChina

Personalised recommendations