Journal Title : International Journal of Modern Trends in Engineering and Science
Paper Title : MECHANICAL PROPERTIES OF SELFCONSOLIDATING GEOPOLYMER CONCRETE
Volume 03 Issue 07 2016
ISSN no: 2348-3121
Page no: 189-192
Abstract – Continuous increase in production of cement causes large amount of carbon-dioxide emission which results in greenhouse effects. In order to overcome this problem many researchers have put in their efforts to achieve optimum strength of concrete by replacing cement with fly ash and when it combine with alkaline solution emerge to a new technology called as Geo polymer concrete. Self compacting geo polymer concrete (SCGC) is an improved way of concreting execution that does not require compaction and is made by complete elimination of ordinary Portland cement content. SCGC is synthesized from low calcium fly ash, activated by combination of sodium hydroxide and sodium silicate solution and by incorporation of super plasticizer for self-compatibility. This study is an attempt to observe strength characteristics of SCGC by suitable selection of super plasticizers available in market and testing their viability on SCGC. The fresh properties for morality of 8M, 10M, 12M, 14M, and 16M of SCGC were assessed through T 50 Slump test, slump flow, L-box and U-box test methods. Strength tests such as cube compressive strength, splitting tensile test for cylinder, beam flexure was also tested for the period of 7 and 28 days in the heat curing method. Finally flexural response is also studied to analyze the stress variation taking place in SCGC beam.
Keywords— Self Compacting geopolymer Concrete, low calcium fly ash, Workability, Hardened properties, Flexural response
- D. M. Roy, Hydration, structure, and properties of blast furnace slag cements, mortars, and concrete. In ACI Journal Proceedings, 79(6) (1982), 444-457.
- E. Douglas, G. Pouskouleli, Prediction of compressive strength of mortars made with portland cement-blast-furnace slag-fly ash blends. Cement and Concrete Research, 21(4) (1991), 523-534.
- Hassan, K.E., Cabrera, J.G., and Maliehe, R.S. 2000. The Effect of Mineral Admixtures on the Properties of High-Performance Concrete. Cement & Concrete Composites, Vol. 22, pp. 267-271.
- IS 10262:2009 “Code of concrete mix proportioning – guidelines (first revision)”IS 456-2000, “Plain and Reinforced Concrete Indian Standard Specification”
- Mehta P.K. (1989) Pozzolanic and Cementitious by-products in Concrete Another Look, In V.M. Malhotra ed. Fly Ash, Silica Fume, Slag, and Natural Pozzolans in Concrete,Sp 114, Vol. 1, ACI, Detroit: 1-45
- M.S. Shetty, Concrete Technology Oner , S. Akyuzb, R. Yildiza,(2004)“An experimental study on strength development of concrete containing fly ash and optimum usage of fly ash in concrete” Cement and Concrete Research , Vol.35, Issue 6, pp 1165-1171
- S.Arivalagan “Sustainable studies on Concrete with GGBS as partial replacement material in cement” JJCE, Vol. 8, Issue 3, march 2011.
- Santhakumar A R (2008) Concrete Technology, Oxford University Press, New Delhi.
- Xianyu Jin and Zongjin Li.], ―Effects of Mineral Admixture on Properties of Young Concrete‖, Journal of materials in Civil Engineering @ ASCE, pp.435- 442 Sept-Oct- 2003.