Electrochemical Consideration on Corrosion Performance of Steel Bar Embedded in SCMs Mortar with Initial Chloride Contaminated

Dahlia Patah, Amry Dasar, Hidenori Hamada

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The corrosion of steel reinforcement in concrete has been a concern in recent years as durability has become more important in concrete structures. Particularly, chloride-induced corrosion of reinforcing steel is increasingly important in many countries due to the increasing use either sea sand and seawater for heavy construction of marine structures. Several protection techniques have been developed including the utilization of Supplementary Cementitious Materials (SCMs) to increase corrosion resistance from chloride attack. The corrosion behavior of steel bar was investigated through electrochemical techniques at W/B ratios of 0.4, 0.5 and 0.6 with the effectiveness SCMs such as fly ash, silica fume, metakaolin and blast furnace slag in chloride contaminated mortar. This paper focuses on electrochemical properties of steel bar embedded in cement hardened matrix during early age until 9-months. The result showed, SCMs remarkable performance against corrosion, but different rates depending on their binder type. Further, BBMKP is more effective on electrochemical and durability performance.

Original languageEnglish
Title of host publicationProceedings of the 4th EPI International Conference on Science and Engineering, EICSE 2020
EditorsBaharuddin Hamzah, Faisal Mahmuddin, Intan Sari Areni
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735443587
DOIs
Publication statusPublished - Nov 16 2022
Event4th EPI International Conference on Science and Engineering, EICSE 2020 - Gowa, Indonesia
Duration: Oct 6 2020Oct 7 2020

Publication series

NameAIP Conference Proceedings
Volume2543
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference4th EPI International Conference on Science and Engineering, EICSE 2020
Country/TerritoryIndonesia
CityGowa
Period10/6/2010/7/20

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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