Flow and Strength Properties of Geopolymer Mortar

0*, Suresh Varad**, Praveen Kumar K***, Ram Thilak****
*,***-**** Assistant Professor, Department of Civil Engineering, RV College of Engineering, Bangalore, India.
** PG Student, Structural Engineering, TOCE, Bangalore, Karnataka, India.
Periodicity:December - February'2016
DOI : https://doi.org/10.26634/jce.6.1.3748

Abstract

Mortar is a basic ingredient of masonry which helps in binding together the masonry units. The strength and elasticity properties of masonry are not only dependent on the properties of constituent but also on the intricate interaction between the units and the mortar. Thus any study related to the performance of masonry should not exclude studies on mortar. There are quite a good number of mortars which are commonly used that possess relative advantages and disadvantages. These conventional mortars are generally 10-15 mm in thickness. Since these conventional mortars constitute to 7% - 25% of gross volume of masonry, there are manufacturers who have came out with alternative “Geopolymer Bricks” recently. So in this paper, the authors try to find the properties of a Geopolymer mortar. This can be made from alkaline solutions. In this study, an attempt has been made to understand the workability and strength properties of a Geopolymer Mortar. The study includes Geopolymer mortar with different molarities 4M, 8M, and 12M. And also fly ash has been replaced with 10%, 20%, and 30% of Ground Granulated Blast Furnace Slag (GGBS). 1:3 proportion of fly ash to sand ratio has been maintained throughout the work. Based on the study it is found that the workability of fresh Geopolymer mortar decreases with increase in the GGBS replacement. Increase in the compressive strength of the Geopolymer mortar increase with the increase in molarity and compressive strength of the cubes increases up to the replacement of 20% of GGBS for sun curing after which it decreases to a considerable amount.

Keywords

Geopolymer Mortar, Alkaline Activator, Molarity, Fly Ash, GGBS.

How to Cite this Article?

Shashank.B.S., Varad,S., Kumar,P.K., and Thilak,R (2016). Flow and Strength Properties of Geopolymer Mortar. i-manager’s Journal on Civil Engineering, 6(1), 35-39. https://doi.org/10.26634/jce.6.1.3748

References

[1]. D. Hardjito and B. V. Rangan, (2005). “Development and properties of Low-calcium fly ash-based Geopolymer concrete”. Research Report GC 1.
[2]. Daniel L.Y. Kong, & Jay G. Sanjayan, (2008). “Damage behavior of geopolymer composites exposed to elevated temperatures”. Cement & Concrete Composites, Vol.30, pp.986–991
[3]. J. Davidovits, (1994). “Properties of geopolymer cements”. Proceedings of the First International Conference on Alkaline Cements and Concretes, Vol.1, SRIBM, pp.131-149
[4]. Criado, M.,; Palomo, A., Fernandez-Jimenez, & A. Alkali (2005). “Activation of fly ashes. Part 1: Effect of curing conditions on the carbonation of the reaction products”. Fuel 2005, Vol.84, pp.2048–2054.
[5]. Kovalchuk, G.; Fernandez-Jimenez, A.; Palomo, A., (2007). “Alkali-activated fly ash: Effect of thermal curing conditions on mechanical and microstructural development-Part II”, Fuel 2007, Vol.86, pp.315–322.
[6]. Bakharev, T. (2006). “Thermal behaviour of geopolymers prepared using Class F fly ash and elevated temperature curing”, Cem. Concr. Res. 2006, Vol.36, pp.1134–1147.
[7]. M Joseph Davidovits, (1987). “Ancient and Modern Concretes: What Is the Real Difference?”, Concrete International, pp 23-28.
[8]. Hardjito, D. and Rangan, B.V. (2005). "Development and Properties of low calcium fly ash based Geopolymer concrete." Research report GC 1, Curtin University of Technology, Perth, Australia.
[9]. IS: 2250-1981, “Code of practice for preparation and use of Masonry mortars”, (first revision), Bureau of Indian Standards, New Delhi.
[10]. IS: 1905-1987, “Codeof Practice for structural use of Unreinforced Masonry”, Bureau of Indian standards, New Delhi.
[11]. A.W Hendry (1998). Structural Masonry. Second Edition, Macmillan Press Ltd, London.
[12]. K. S. Jagadish (2008). Alternative Building Materials and Technologies. New Age International Publishers, Bangalore.
[13]. Jian He, Jianhong Zhang, and Yuzhen Yu, & Guoping Zhang. ”The strength and microstructure of two Geopolymers derived from metakaolin and red mud-fly ash admixture: A comparative study”. Construction and Building Materials, Vol.30, pp.80–91.
[14]. IS: 5512-1983. “Specification for flow table for use in tests of hydraulic cements and pozzolanic materials”.
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