Structural Behaviour of Ferrogeopolymer Slabs under Flexure

Abstract:

The main objective of this paper was to present the results of experimental investigation carried out to study the structural behaviour of ferrogeopolymer elements under flexure. Initially the properties of geopolymeric binder prepared using the source materials such as Fly ash and Ground Granulated Blast Furnace Slag (GGBS) without conventional cement have been investigated. The different parameters considered in this study are the ratio of binder to fine aggregate (1:2 and1:3) and the ratio of Na₂SiO₃ to NaOH solutions (2.0 and 2.5). The various combinations of Fly ash and GGBS considered are 90% & 10% and 80% & 20%. The alkaline liquid to binder ratio is fixed as 0.45. The individual properties of mortar such as Compressive Strength and Density were determined as per relevant Indian standards. The geopolymer concrete mix that gives the highest compressive strength was used to cast the ferrogeopolymer structural slabs. Four numbers of rectangular slabs of size 800 mm x 300 mm x 25 mm were prepared with two types of meshes such as mild steel and galvanized iron weld mesh with single and double layers. Based on the test results Load-Deflection curves were drawn and the effectiveness of mild steel and galvanized iron weld meshes was compared from the characteristics such as first crack load, ultimate load, energy absorption and ductility.

• Periodical: Materials Science Forum (Volume 866)
• Pages: 109-113
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.866.109
• Online since: August 2016
• Authors: Rathinam Kumutha*, Kanagarajan Vijai, P. Rajeswaran
• Keywords: Ductility, Energy Absorption, Ferrogeopolymer, Slab

References

[1] P. Jayajothi, R. Kumutha, K. Vijai , Properties of Fly Ash and GGBS Based Geopolymeric Binder, Chemical Science Review and Letters, 2(6) (2014) 470-479.

[2] S. Mane, H. S. Jadhav, Investigation of Geopolymer Mortar and Concrete under High Temperature, International Journal of Emerging Technology and Advanced Engineering, 2(12) (2012) 384-390.

[3] S. Thokchom, P. Ghosh, S. Ghosh, Performance of Fly ash Based Geopolymer Mortars in Sulphate Solution, Journal of Engineering Science and Technology Review, 3(1) (2010) 36-40.

DOI: 10.25103/jestr.031.07

[4] M. Z. Tsen, D. Hardjito, Strength and Thermal Stability of Fly ash Based Geopolymer Mortar, The 3rd International Conference, ACF/VCA, (2008) 144-150.

[5] P. Saranya Banu, S. Dharmar, S. Nagan, Flexural Behaviour of Trough Shaped Ferrocement Panels, International Journal of Innovative Research in Science and Technology, 3(2014) 14010-14016.

[6] J. Phalke, G. Gaidhankar, Flexural Behaviour of Ferrocement Slab Panels using Welded Woven Mesh by Incorporating Steel Fibers, International Journal of Research in Engineering and Technology, 3(2015) 835-843.

DOI: 10.15623/ijret.2014.0305140

[7] S. Grija, B. Karthikeyan, Novel Ferrocement Light Weight Wall Panels, International Journal of Civil Mechanical Engineering, 4 (2014) 85-97.

[8] IS 383 -1970, Specifications for Coarse and Fine Aggregate from natural sources for concrete, Bureau of Indian Standards (BIS), New Delhi.