Prediction of Setting and Strength Characteristic of Binary Blended Geopolymer Matrix

A.M.N.Kashyap*, T. Chandrasekhara Rao**, N.V. Ramana Rao***
* Ph.D Scholar, Department of Civil Engineering, JNT University, Hyderabad, India.
** Professor, Department of Civil Engineering, Bapatla Engineering College, Bapatla, India.
*** Director and Professor, Department of Civil Engineering, JNT University, Hyderabad, India.
DOI : https://doi.org/10.26634/jste.6.4.13911

Abstract

The production of cement generates large amount of carbon dioxide. Normally, conventional concrete is manufactured with Portland cement, which acts as a binder. The production of cement emits CO into the atmosphere, 2 which is a greenhouse gas and causes environmental pollution. In view of this, there is a need to develop sustainable alternatives to Portland cement utilizing the industrial by-products, such as fly ash, Ground Granulated Blast furnace Slag (GGBS) which are pozzolonic in nature. It has been established that fly ash can replace the cement partially. In this context, a new material was developed known as “Geopolymer”.

In this study, various parameters on the short term engineering properties of fresh and hardened properties of Geopolymer Mortar were studied. In the present investigation, cement is replaced by geopolymer source material (fly ash and GGBS) and water is replaced by alkaline activator consisting of Sodium Silicate and Sodium Hydroxide of molarity (12 M). The ratio of sodium silicate to sodium hydroxide adopted was 2.5. The test results showed that final setting time decreases as the GGBS content in the mix increases and also these is increase in compressive strength.

Keywords

Geopolymer Mortar, Normal Consistency, Setting Times, Fly Ash, GGBS

How to Cite this Article?

Kashyap, A.M.N., Rao, T,C.S,. and Rao, N.V.R. (2018). Prediction of Setting and Strength Characteristic of Binary Blended Geopolymer Matrix. i-manager’s Journal on Structural Engineering, 6(4), 16-22. https://doi.org/10.26634/jste.6.4.13911

References

[1]. Al Bakria, A. M., Kamarudin, H., BinHussain, M., Nizar, I. K., Zarina, Y., & Rafiza, A. R. (2011). The effect of curing temperature on physical and chemical properties of geopolymers. Physics Procedia, 22, 286-291.
[2]. Davidovits, J. (1991). Geopolymers: inorganic polymeric new materials. Journal of Thermal Analysis and calorimetry, 37(8), 1633-1656.
[3]. Hardjito, D., Cheak, C. C., & Ing, C. H. L. (2008 a). Strength and setting times of low calcium fly ash-based geopolymer mortar. Modern Applied Science, 2(4), 3-11.
[4]. Hardjito, D., & Tsen, M. Z. (2008 b). Strength and thermal rd stability of fly ash-based geopolymer mortar. In The 3 International Conference-ACF/VCA (Vol. 2003, pp. 144- 150).
[5]. Indian Standards. (1980). Specification for Coarse and Fine aggregates from National Sources from Concrete (IS:383). Bureau of Indian Standards, New Delhi.
[6]. Indian Standards. (1988a). Method of Physical Test for Hydraulic Cement-Determination of Standard Consistency of Cement Paste (IS:4031 (Part IV)-1988). Bureau of Indian Standards, New Delhi.
[7]. Indian Standards. (1988b). Method of Physical Test for Hydraulic Cement-Determination of Initial and Final Setting Time (IS:4031 (Part V)-1988). Bureau of Indian Standards, New Delhi.
[8]. Jeyasehar, C. A., Saravanan, G., Ramakrishnan, A. K., & Kandasamy, S. (2013). Strength and durability studies on fly ash based geopolymer bricks. Asian Journal of Civil Engineering (BHRC), 14(6), 797-808.
[9]. Khan, I. K. (2004). Strength Characteristics of Low Cost Fly Ash Brick masonry. International Journal of Science, Environment and Technology, 3(3), 976-980.
[10]. Radhakrishna, A. Shashishankar, A., & Udayashankar, B. C. (2008). Phenomenological Model to Re-proportion rd Geopolymer Compressed Blocks. In 33 Conference on Our World in Concrete & Structures.
[11]. Sahana, R. (2013, December). Setting time compressive strength and microstructure of geopolymer paste. In Proceedings of the International Conference on Energy and Environment (ICEE'13) (Vol. 2).
[12]. Sabna, J., Sreevidya, V., & Venkatasubramani, R. (2014). Mechanical properties of fibrous geopolymer mortar in relation with curing conditions. International Journal of Civil and Structural Engineering, 4(3), 365-371.
[13]. Temuujin, J., Williams, R. P., & Van Riessen, A. (2009). Effect of mechanical activation of fly ash on the properties of geopolymer cured at ambient temperature. Journal of Materials Processing Technology, 209(12), 5276-5280.
[14]. Thampi, T., Sreevidya, V., & Venkatasubramani, R. (2014). Strength studies on geopolymer mortar for ferro geopolymer water tank. International Journal of Advanced Structures and Geotechnical Engineering, 3(2), 102-105.
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