Examination of Chloride-Induced Corrosion in Reinforced Geopolymer Concretes
Publication: Journal of Materials in Civil Engineering
Volume 25, Issue 10
Abstract
The durability of steel reinforced-concrete specimens made from three alkali-activated fly ash (FA) stockpiles and ordinary portland cement (OPC) in cyclic wet-dry chloride environment was evaluated over a period of 12 months. Testing methods included electrochemical methods, chloride diffusion and contents analysis, chemical and mechanical analyses, and visual examination. Geopolymer concrete (GPC) specimens made from Class F FA exhibited lower diffusion coefficients, chloride contents, and porosity compared with their GPC Class C FA and OPC counterparts. Overall, GPC specimens displayed limited signs of leaching and corrosion product formation, whereas OPC specimens exhibited the formation of multiple corrosion products along with significant leaching.
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Information & Authors
Information
Published In
Journal of Materials in Civil Engineering
Volume 25 • Issue 10 • October 2013
Pages: 1465 - 1476
Copyright
© 2013 American Society of Civil Engineers.
History
Received: Mar 11, 2012
Accepted: Aug 28, 2012
Published online: Aug 31, 2012
Discussion open until: Jan 31, 2013
Published in print: Oct 1, 2013
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