Examination of Chloride-Induced Corrosion in Reinforced Geopolymer Concretes

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.

• Record URL:
  • https://doi.org/10.1061/(ASCE)MT.1943-5533.0000672
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/08991561
• Supplemental Notes:
  • Copyright © 2013 American Society of Civil Engineers
• Authors:
  • Kupwade-Patil, Kunal
  • Allouche, Erez N
• Publication Date: 2013-10

Language

• English

Media Info

• Media Type: Digital/other
• Features: References;
• Pagination: pp 1465-1476
• Serial:
  • Journal of Materials in Civil Engineering
  • Volume: 25
  • Issue Number: 10
  • Publisher: American Society of Civil Engineers
  • ISSN: 0899-1561
  • EISSN: 1943-5533
  • Serial URL: http://ascelibrary.org/journal/jmcee7

Subject/Index Terms

• TRT Terms: Chlorides; Concrete; Corrosion; Durability; Fly ash; Material reinforcement; Polymers
• Subject Areas: Highways; Materials; I32: Concrete;

Filing Info

• Accession Number: 01494212
• Record Type: Publication
• Files: TRIS, ASCE
• Created Date: Sep 24 2013 9:15AM