Study on Effect of Sodium Hydroxide Concentration on Geopolymer Mortar

  • S. Jeeva Chithambaram
  • Sanjay KumarEmail author
  • M. M. Prasad
Conference paper
Part of the Lecture Notes in Civil Engineering book series (LNCE, volume 25)


Geopolymer mortar is an eco-friendly material that may reduce the carbon footprint by using waste material from industries like Ground Granulated Blast Furnace Slag (GGBFS) and fly ash as total replacement of cement. Sodium Hydroxide and Sodium Silicate solutions are combined together and used as alkaline activator solutions to manufacture geopolymer mortar. This paper presents an experimental study to examine the influence of Sodium Hydroxide (NaOH) concentrations viz. 8M, 10M, 12M, and 14M on the compressive strength of geopolymer mortar. Geopolymer mortar mixes were prepared having 1:3 as Fly ash to fine aggregate ratio, sodium silicate and sodium hydroxide ratio being 2.5 and 0.45 as the alkaline solution and fly ash ratio. GGBFS was used as partial replacement of fly ash by 10%, 20%, 30% and 40% to manufacture Geopolymer mortar in ambient curing. The specimens were cast in cube moulds of size 70.6 mm, cured and then tested at 3, 7, and 28 days of maturity. The test results revealed that maximum compressive strength was achieved for geopolymer mortar having 12M NaOH concentration beyond which there is a minimal decrease in the compressive strength.


Geopolymer mortar Sodium Hydroxide (NaOH) Compressive strength Ambient curing 


  1. 1.
    India Brand Equity Foundation. (2015). Indian cement industry analysis.
  2. 2.
    Davidovits, J. (1994). Global warming impact on the cement and aggregate industries. World Resource Review, 6(2), 263–278.Google Scholar
  3. 3.
    Hardjito, D., Wallah, S. E., Sumjouw, D. M. J., & Rangan, B. V. (2003). Geopolymer concrete: Turn waste into environmentally friendly concrete. In Proceedings of the International Conference on Recent Trends in Concrete Technology and Structures (INCONTEST ‘03) (pp. 129–140). Coimbatore, India.Google Scholar
  4. 4.
    Choate, W. T. (2003). Energy and emission reduction opportunities for the cement industry. Report: Industrial Technological Program, Energy Efficiency and Renewable Energy, US Department of Energy, USA.Google Scholar
  5. 5.
    Davidovits, J. (1994). High-alkali cements for 21st century concretes. ACI Special Publication, 144, 383–398.Google Scholar
  6. 6.
    Malhotra, V. M. (1999). Making concrete “Greener” with fly ash. Concrete International, 21(5), 61–66.Google Scholar
  7. 7.
    Worrell, E., Price, L., Martin, N., Hendriks, C., & Meida, L. O. (2001). Carbon dioxide emissions from the global cement industry. In Annual Review of Energy and Environment (pp. 303–329), 26 Nov.CrossRefGoogle Scholar
  8. 8.
    Davidovits, J. (2008). Geopolymer chemistry and applications (2nd ed.). St. Quentin, France: Institute Geopolymer.Google Scholar
  9. 9.
    Rangan, B. V. (2008). Fly ash-based geopolymer concrete. Research Report GC 4, Curtin University of Technology, Perth, Australia.Google Scholar
  10. 10.
    Bernal, S. A., Mejía de Gutiérrez, R., Pedraza, A. L., Provis, J. L., Rodriguez, E. D., & Delvasto, S. (2011). Effect of binder content on the performance of alkali activated slag concretes. Cement and Concrete Research, 41(1), 1–8.CrossRefGoogle Scholar
  11. 11.
    IS: 3812-2003. Specifications for fly ash for use as pozzolana and admixture. Bureau of Indian Standards, New Delhi.Google Scholar
  12. 12.
    IS: 383-1987. Indian Standard code of practice for specification for coarse and fine aggregates from natural sources of concrete. Bureau of Indian Standards, New Delhi.Google Scholar
  13. 13.
    Bureau of Indian Standards. IS: 516-1959, Indian standard methods of test for strength of concrete. Bureau of Indian Standards, New Delhi, India.Google Scholar

Copyright information

© Springer Nature Singapore Pte Ltd. 2019

Authors and Affiliations

  • S. Jeeva Chithambaram
    • 1
  • Sanjay Kumar
    • 1
    Email author
  • M. M. Prasad
    • 1
  1. 1.Department of Civil EngineeringNITJamshedpurIndia

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