Long Term Corrosion Experiment of Steel Rebar in Fly Ash-Based Geopolymer Concrete in NaCl Solution

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 amou...

Full description

Bibliographic Details
Main Authors:	Asmara, Y. P., Siregar, J. P., C., Tezara, Wan, Nurlisa, J., Jamiluddin
Format:	Article
Language:	English
Published:	Hindawi Publishing Corporation 2016
Subjects:	TJ Mechanical engineering and machinery
Online Access:	http://umpir.ump.edu.my/id/eprint/14546/ http://umpir.ump.edu.my/id/eprint/14546/ http://umpir.ump.edu.my/id/eprint/14546/ http://umpir.ump.edu.my/id/eprint/14546/1/Long%20Term%20Corrosion%20Experiment%20of%20Steel%20Rebar%20in%20Fly%20Ash-Based%20Geopolymer%20Concrete%20in%20NaCl%20Solution.pdf

id	ump-14546
recordtype	eprints
spelling	ump-145462019-06-20T03:44:50Z http://umpir.ump.edu.my/id/eprint/14546/ Long Term Corrosion Experiment of Steel Rebar in Fly Ash-Based Geopolymer Concrete in NaCl Solution Asmara, Y. P. Siregar, J. P. C., Tezara Wan, Nurlisa J., Jamiluddin TJ Mechanical engineering and machinery 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. Hindawi Publishing Corporation 2016 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/14546/1/Long%20Term%20Corrosion%20Experiment%20of%20Steel%20Rebar%20in%20Fly%20Ash-Based%20Geopolymer%20Concrete%20in%20NaCl%20Solution.pdf Asmara, Y. P. and Siregar, J. P. and C., Tezara and Wan, Nurlisa and J., Jamiluddin (2016) Long Term Corrosion Experiment of Steel Rebar in Fly Ash-Based Geopolymer Concrete in NaCl Solution. International Journal of Corrosion. https://www.hindawi.com/journals/ijc/2016/3853045/abs/ DOI: 10.1155/2016/3853045
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	TJ Mechanical engineering and machinery
spellingShingle	TJ Mechanical engineering and machinery Asmara, Y. P. Siregar, J. P. C., Tezara Wan, Nurlisa J., Jamiluddin Long Term Corrosion Experiment of Steel Rebar in Fly Ash-Based Geopolymer Concrete in NaCl Solution
description	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.
format	Article
author	Asmara, Y. P. Siregar, J. P. C., Tezara Wan, Nurlisa J., Jamiluddin
author_facet	Asmara, Y. P. Siregar, J. P. C., Tezara Wan, Nurlisa J., Jamiluddin
author_sort	Asmara, Y. P.
title	Long Term Corrosion Experiment of Steel Rebar in Fly Ash-Based Geopolymer Concrete in NaCl Solution
title_short	Long Term Corrosion Experiment of Steel Rebar in Fly Ash-Based Geopolymer Concrete in NaCl Solution
title_full	Long Term Corrosion Experiment of Steel Rebar in Fly Ash-Based Geopolymer Concrete in NaCl Solution
title_fullStr	Long Term Corrosion Experiment of Steel Rebar in Fly Ash-Based Geopolymer Concrete in NaCl Solution
title_full_unstemmed	Long Term Corrosion Experiment of Steel Rebar in Fly Ash-Based Geopolymer Concrete in NaCl Solution
title_sort	long term corrosion experiment of steel rebar in fly ash-based geopolymer concrete in nacl solution
publisher	Hindawi Publishing Corporation
publishDate	2016
url	http://umpir.ump.edu.my/id/eprint/14546/ http://umpir.ump.edu.my/id/eprint/14546/ http://umpir.ump.edu.my/id/eprint/14546/ http://umpir.ump.edu.my/id/eprint/14546/1/Long%20Term%20Corrosion%20Experiment%20of%20Steel%20Rebar%20in%20Fly%20Ash-Based%20Geopolymer%20Concrete%20in%20NaCl%20Solution.pdf
first_indexed	2023-09-18T22:18:25Z
last_indexed	2023-09-18T22:18:25Z
_version_	1777415493387288576

Long Term Corrosion Experiment of Steel Rebar in Fly Ash-Based Geopolymer Concrete in NaCl Solution

Similar Items