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A study on corrosion behavior of Mild Steel in Granulated Blast Furnace (GBFS) fly ash geopolymer

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Bibliographic Details
Main Author: Siti Farahnabilah, Muhd Amli
Other Authors: Dr. Farah Farhana, Zainal
Format: Other
Language:English
Published: Universiti Malaysia Perlis (UniMAP) 2022
Subjects:
Fly ash geopolymer
Geopolymer
Granulated Blast Furnace (GBFS)
Mild steel
Corrosion
Online Access:http://dspace.unimap.edu.my:80/xmlui/handle/123456789/77156
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spelling my.unimap-771562022-11-23T06:21:05Z A study on corrosion behavior of Mild Steel in Granulated Blast Furnace (GBFS) fly ash geopolymer Siti Farahnabilah, Muhd Amli Dr. Farah Farhana, Zainal School of Materials Engineering Fly ash geopolymer Geopolymer Granulated Blast Furnace (GBFS) Mild steel Corrosion Access is limited to UniMAP community. This research presents the corrosion behavior of mild steel embedded in geopolymer paste that produced by the reaction of fly ash and slag with an alkaline activators (NaOH molarity of 12 M, Na2SiO3/NaOH ratio of 2.5). Geopolymer is an alternative to the Ordinary Portland Cement (OPC) due to the environmental friendly, low cost production, workability and good corrosion resistance. Tests were carried out on 50 mm x 50 mm x 50 mm cube geopolymer paste and to study the corrosion 100 mm length and 15 mm diameter of mild steel bar is needed. The compression strength, water absorption and Open Circuit Potential (OCP) testing were conducted after 3, 7, 14 and 28 days cured. The highest compressive strength of about 37.35 Nmm-2 was achieved for the geopolymer paste containing 70% of fly ash class F and 30% of slag with using 12 M of NaOH solution after 28 days. Meanwhile, the corrosion behavior of reinforcement bar has been conducted by OCP method and recorded with time. From Pourbaix diagram, all the potential values were located in passivity region due to oxide formed to protect the reinforcement bar from corrosive agents. 2022-08 2022-11-23T06:21:05Z 2022-11-23T06:21:05Z 2017-04 Other http://dspace.unimap.edu.my:80/xmlui/handle/123456789/77156 en Universiti Malaysia Perlis (UniMAP)
institution Universiti Malaysia Perlis
building UniMAP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Perlis
content_source UniMAP Library Digital Repository
url_provider http://dspace.unimap.edu.my/
language English
topic Fly ash geopolymer
Geopolymer
Granulated Blast Furnace (GBFS)
Mild steel
Corrosion
spellingShingle Fly ash geopolymer
Geopolymer
Granulated Blast Furnace (GBFS)
Mild steel
Corrosion
Siti Farahnabilah, Muhd Amli
A study on corrosion behavior of Mild Steel in Granulated Blast Furnace (GBFS) fly ash geopolymer
description Access is limited to UniMAP community.
author2 Dr. Farah Farhana, Zainal
author_facet Dr. Farah Farhana, Zainal
Siti Farahnabilah, Muhd Amli
format Other
author Siti Farahnabilah, Muhd Amli
author_sort Siti Farahnabilah, Muhd Amli
title A study on corrosion behavior of Mild Steel in Granulated Blast Furnace (GBFS) fly ash geopolymer
title_short A study on corrosion behavior of Mild Steel in Granulated Blast Furnace (GBFS) fly ash geopolymer
title_full A study on corrosion behavior of Mild Steel in Granulated Blast Furnace (GBFS) fly ash geopolymer
title_fullStr A study on corrosion behavior of Mild Steel in Granulated Blast Furnace (GBFS) fly ash geopolymer
title_full_unstemmed A study on corrosion behavior of Mild Steel in Granulated Blast Furnace (GBFS) fly ash geopolymer
title_sort study on corrosion behavior of mild steel in granulated blast furnace (gbfs) fly ash geopolymer
publisher Universiti Malaysia Perlis (UniMAP)
publishDate 2022
url http://dspace.unimap.edu.my:80/xmlui/handle/123456789/77156
_version_ 1753972989732323328
score 13.222552

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