Effect of Alkali activator/ Fly ash ratio on Strength and Workability of Low lime Fly ash based Geopolymer concrete

B. Siva Konda Reddy*, J. Varaprasad**, K. Naveen Kumar Reddy***
* Department of Civil Engineering, JNTUH College of Engineering, Hyderabad, A.P, India.
** Department of Civil Engineering, AVR & SVR College of Engineering & Tech, Nandyal, A.P, India.
*** Department of Civil Engineering, Nizam Institute of Engineering and Technology, Hyderabad, A.P, India.
Periodicity:March - May'2011
DOI : https://doi.org/10.26634/jce.1.2.1448

Abstract

This paper presents the effect of Alkali activator / Fly ash ratio (A/F) on strength and workability of geopolymer concrete prepared from low lime based fly ash and a mixed alkali activator of sodium hydroxide and sodium silicate solution. The workability of concrete is found to be increasing when the A/F ratio is increased. An increase in compressive strength of the concrete samples is observed when the A/F ratio is increased for the samples cured at 60oc.

Keywords

Geopolymer, Alkali activator, Workability, Compressive strength

How to Cite this Article?

Reddy, S, K, B., Varaprasad, J., and Reddy, N, K, K. (2011). Effect Of Alkali Activator/ Fly Ash Ratio On Strength And Workability Of Low Lime Fly Ash Based Geopolymer Concrete. i-manager’s Journal on Civil Engineering, 1(2), 63-68. https://doi.org/10.26634/jce.1.2.1448

References

[1]. Davidovits, J. (1994). High-alkali Cements for 21st Century Concretes. Concrete Technology: Past, Present and Future. P. K. Mehta, ACI, Detroit, USA. SP144-19: 383-397.
[2]. Davidovits, J. (1999). Chemistry of Geopolymeric Systems, Terminology. Geopolymer '99 International Conference, France.
[3]. Hardjito D, Rangan B.V (2005), 'Development and properties of low calcium based geopolymer concrete', Research report GC1: Curtin University of Technology, Perth, Australia, pp.1-94.
[4]. Heidrich, C. (2002). Ash Utilisation - An Australian Perspective. Geopolymers 2002 International Conference, Melbourne, Australia, Siloxo.
[5]. Gourley, J. T. (2003). 'Geopolymers; Opportunities for Environmentally Friendly Construction Materials', Materials 2003 Conference: Adaptive Materials for a Modern Society, Sydney, Institute of Materials Engineering Australia.
[6]. Malhotra V.M. (1999). 'Making Concrete Greener with Fly-ash', Concrete International, Vol. 21 (5), p.61-66.
[7]. Malhotra, V. M. (2002). "High-Performance High-Volume Fly Ash Concrete." ACI Concrete International 24(7): 1-5.
[8]. Malhotra, V. M. (2002). "Introduction: Sustainable Development and Concrete Technology." ACI Concrete International 24(7): 22.
[9]. Malhotra, V. M. and P. K. Mehta (2002). High-Performance, High-Volume Fly Ash Concrete: Materials, Mixture Proportioning, Properties, Construction Practice, and Case Histories. Ottawa, Canada, Supplementary Cementing Materials for Sustainable Development Inc.
[10]. Palomo, A., M. W. Grutzeck, M.T. Blanco (1999). "Alkali-Activated Fly Ashes, A Cement for the Future." Cement and Concrete Research 29(8): 1323-1329.
[11]. Xu, H. and J. S. J. van Deventer (2000). "The Geopolymerisation of Alumino-Silicate Minerals." International Journal of Mineral Processing 59(3): 247-266.
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