Volume : II, Issue : III, March - 2013

Chemical Analysis of Low Calcium Fly Ash Based Geopolymer Concrete

Mrs. P. Priya Rachel, Dr. P. Partheeban

Abstract :

Geopolymer concrete offers a solution for the need of ‘greener’ construction material in the midst of environmental concern on the production of Ordinary Portland Cement (OPC). An experimental investigation was conducted to study the chemical properties of fly ash–based geopolymer concrete. Geopolymer was prepared with sodium silicate and sodium hydroxide as activators. The performance of these concretes in aggressive environments was studied using tests on absorption and acid resistance. In addition, performance of the specimens was evaluated in terms of visual appearance, variation of pH of solution and residual alkalinity over the exposure period. A microstructure characteristic of geopolymer concrete was studied using Scanning Electron Microscopy (SEM).pH of solution increased noticeably during the initial weeks which indicate migration of alkalis from mortar specimens. At the end of 18th weeks samples experienced very little weight gain. This research concludes that geopolymer concrete possesses excellent durability for aggressive environments.

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Article: Download PDF   DOI : 10.36106/ijsr  

Cite This Article:

Mrs.P.Priya Rachel, Dr.P.Partheeban Chemical Analysis of Low Calcium Fly Ash Based Geopolymer Concrete International Journal of Scientific Research, Vol.II, Issue.III March 2013

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