A study on improvement of early - age strength of super sulfated cement using phosphogypsum

  • Nguyen Ngoc LamEmail author
Conference paper
Part of the Lecture Notes in Civil Engineering book series (LNCE, volume 54)


Supersulphated cement (SSC) is a newly developed non-burned cementitious material. It is a kind of environmentally-friendly cementitious material due to its energy-saving, low-carbon emission, and waste-utilization. Compared with ordinary Portland cement (PC), SSC has many advantages such as low hydration heat, excellent property of resistance to sulfate, using less clinker but more gypsum. However, the setting time of this binder is quite long, so the strength development is slow at early age. The aim of this paper is to improve the early-age strength for SSC binder samples with 30% Phosphogypsum, 60% ground-granulated blast-furnace slag, the rests are cement or lime and activator Na2SO4 with different content. The research results show that compressive strength at 3-day age can be improved almost twice. Microstructural analysis by infrared spectroscopy revealed that ettringite formed earlier in the case of using activators and improved the microstructure and strength at early age of the binder. However, the strength of the SSC at the later age was reduced when compared to the control sample without activator. The results also show that the optimum content of activator Na2SO4 for improving SSC strength at early age is 1%.


Super Sulphated Cement Compressive Strength Activators 


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    Matschei, T., Bellmann F., and Stark J.: Hydration Behaviour of Sulphate- Activated Slag Cements. Advances in Cement Research, 17(4), 167-178 (2005).CrossRefGoogle Scholar
  2. 2.
    Kuryatnyk T., Angulski da Luz C., Ambroise, J.: Valorization of Phos-phogypsum as Hydraulic Binder. Journal of Hazardous Materials 160 (2), 681–687 (2008).CrossRefGoogle Scholar
  3. 3.
    Ding Sha, S. Zonghe, Chen Wei, Lu Jianxin, and Tian Sufang.: Properties of Supersulphated Phosphogysum slag Cement (SSC) Concrete. Journal of Wuhan University of Technology 29(1), 109–113 (2014).CrossRefGoogle Scholar
  4. 4.
    Mun, K.J., Hyoung W.K., and Lee C.W.: Basic Properties of Non- Sintering Cement Using Phosphogypsum and Waste Lime as Activator. Construction and Building Materials 21(6), 1342 – 1350 (2007).CrossRefGoogle Scholar
  5. 5.
    Taneja, C.A., Singh M., Tehri S.P., and Raj T.: Super sulphated cement from waste phosphogypsum. In 12th International conference on silicate industry and silicate science, Budapest - Hungary, pp. 821-827 (1977).Google Scholar
  6. 6.
    Mulla M. S., K.V., Gundakalle V. D., Thakare R. B.: Phosphogypsum applications in cement concrete. In: International Workshop and Conference on Construction and Materials, CONMAT 2003, Department of Civil Engineering, IIT Kharagpur, India, pp. 677-687, January 9-11, 2003.Google Scholar
  7. 7.
    Manjit S., Garg M.: Phosphogypsum-Fly ash cementitious binder - Its hydration and strength development, Cement and Concrete Research 4(25), 752-58 (1995).Google Scholar
  8. 8.
    Singh M., Garg M.: Cementitious Binder from Fly Ash and Other In-dustrial Wastes. Cement and Concrete Research 29(3), 309-314 (1999).CrossRefGoogle Scholar
  9. 9.
    Garg M., Singh M., Kumar R.: Some aspects of durability of a phos-phogypsum-lime-fly ash binder. Construction and Building Materials 10(4), 273-279 (1996).CrossRefGoogle Scholar
  10. 10.
    Weiguo, S., Mingkai Z., Qinglin Z.: Study on Lime–Fly Ash–Phosphogypsum Binder. Construction and Building Materials 21(7), 1480-1485 (2007).Google Scholar
  11. 11.
    Sunil K.: Perspective Study on Fly Ash–Lime–Gypsum Bricks and Hollow Blocks for Low Cost Housing Development. Construction and Building Materials 16(8), 519-525 (2002).CrossRefGoogle Scholar

Copyright information

© Springer Nature Singapore Pte Ltd. 2020

Authors and Affiliations

  1. 1.National University of Civil EngineeringHanoiVietnam

Personalised recommendations