Long Term Corrosion Experiment of Steel Rebar in Fly Ash-Based Geopolymer Concrete in NaCl Solution
Joint Authors
Asmara, Y. P.
Siregar, J. P.
Tezara, C.
Nurlisa, Wan
Jamiluddin, J.
Source
International Journal of Corrosion
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-5, 5 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-08-15
Country of Publication
Egypt
No. of Pages
5
Main Subjects
Abstract EN
This research focuses on an experimental investigation to identify the effects of fly ash on the electrochemical process of concrete during the curing time.
A rebar was analysed using potentiostat to measure the rest potential, polarization diagram, and corrosion rate.
Water-to-cement ratio and amount of fly ash were varied.
After being cured for 24 hours at a temperature of 65°C, the samples were immersed in 3.5% of NaCl solution for 365 days for electrochemical measurement.
Measurements of the half-cell potential and corrosion current density indicated that the fly ash has significant effects on corrosion behaviour of concrete.
Although fly ash tends to create passivity on anodic current, it increases corrosion rate.
The corrosion potential of this concrete mixture decreases compared to concrete without fly ash.
From the result, it can be summarized that concrete mixture with 70% of OPC (Ordinary Portland Cement) and 30% fly ash has shown the best corrosion resistance.
American Psychological Association (APA)
Asmara, Y. P.& Siregar, J. P.& Tezara, C.& Nurlisa, Wan& Jamiluddin, J.. 2016. Long Term Corrosion Experiment of Steel Rebar in Fly Ash-Based Geopolymer Concrete in NaCl Solution. International Journal of Corrosion،Vol. 2016, no. 2016, pp.1-5.
https://search.emarefa.net/detail/BIM-1105487
Modern Language Association (MLA)
Asmara, Y. P.…[et al.]. Long Term Corrosion Experiment of Steel Rebar in Fly Ash-Based Geopolymer Concrete in NaCl Solution. International Journal of Corrosion No. 2016 (2016), pp.1-5.
https://search.emarefa.net/detail/BIM-1105487
American Medical Association (AMA)
Asmara, Y. P.& Siregar, J. P.& Tezara, C.& Nurlisa, Wan& Jamiluddin, J.. Long Term Corrosion Experiment of Steel Rebar in Fly Ash-Based Geopolymer Concrete in NaCl Solution. International Journal of Corrosion. 2016. Vol. 2016, no. 2016, pp.1-5.
https://search.emarefa.net/detail/BIM-1105487
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1105487