Effect of Alkali-Silica Reaction on Chloride-Induced Corrosion in Reinforced Concrete

Aminfar, Ata

Effect of Alkali-Silica Reaction on Chloride-Induced Corrosion in Reinforced Concrete

Aminfar, Ata

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Publication Type:: Thesis
Issue Date:: 2022

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Field	Value	Language
dc.contributor.author	Aminfar, Ata
dc.date.accessioned	2022-12-12T02:08:15Z
dc.date.available	2022-12-12T02:08:15Z
dc.date.issued	2022
dc.identifier.uri	http://hdl.handle.net/10453/164310
dc.description	University of Technology Sydney. Faculty of Engineering and Information Technology.	en_US.UTF-8
dc.description.abstract	Alkali-silica reaction (ASR) and reinforced concrete (RC) corrosion are two of the major concrete deterioration phenomena that can affect concrete structures causing harm to the structure lowering the lifespan and the structural integrity, which eventually results in billions of dollars of rehabilitation cost. Although ASR and RC corrosion mechanisms are well-known and have been studied significantly in the past years individuallv, there have been small amounts of research regarding ASR and RC corrosion combined effects and how ASR can affect the corrosion of steel in RC structures. The experimental study is based on a "Comparative Method" and will compare the time to corrosion-induced cracking and migration coefficient in concrete specimens utilizing accelerated methods for concrete with highly reactive dacite and non-reactive aggregate with 7.25% alkali boosting. The chloride migration coefficient of reactive specimens decreased over the 150-day test duration compared to specimens prepared with nonreactive aggregate. Furthermore, accelerated chloride-induced corrosion (ACIC)tests on reactive specimens show a higher time to cover crack due to corrosion than nonreactive specimens over the 150-day testing. Additionally, the mechanical properties of the specimens prepared with a reactive and non-reactive aggregate such as compressive stre tensile stre and modulus of elast were also measured.	en_US.UTF-8
dc.format	Thesis (ME)
dc.language.iso	en_US	en_US.UTF-8
dc.relation	https://opus.lib.uts.edu.au/bitstream/10453/164310/4/02whole.pdf
dc.rights	The author owns the copyright in this thesis including all reproduction and reuse rights for the work. The work may not be altered without the permission of the copyright owner. Attribution is essential when quoting or paraphrasing from this thesis.
dc.rights	au.edu.uts.lib/ppc
dc.rights	info:eu-repo/semantics/openAccess
dc.title	Effect of Alkali-Silica Reaction on Chloride-Induced Corrosion in Reinforced Concrete	en_US.UTF-8
dc.type	Thesis
utslib.copyright.status	open_access	*

Abstract:

Alkali-silica reaction (ASR) and reinforced concrete (RC) corrosion are two of the major concrete deterioration phenomena that can affect concrete structures causing harm to the structure lowering the lifespan and the structural integrity, which eventually results in billions of dollars of rehabilitation cost. Although ASR and RC corrosion mechanisms are well-known and have been studied significantly in the past years individuallv, there have been small amounts of research regarding ASR and RC corrosion combined effects and how ASR can affect the corrosion of steel in RC structures. The experimental study is based on a "Comparative Method" and will compare the time to corrosion-induced cracking and migration coefficient in concrete specimens utilizing accelerated methods for concrete with highly reactive dacite and non-reactive aggregate with 7.25% alkali boosting. The chloride migration coefficient of reactive specimens decreased over the 150-day test duration compared to specimens prepared with nonreactive aggregate. Furthermore, accelerated chloride-induced corrosion (ACIC)tests on reactive specimens show a higher time to cover crack due to corrosion than nonreactive specimens over the 150-day testing. Additionally, the mechanical properties of the specimens prepared with a reactive and non-reactive aggregate such as compressive stre tensile stre and modulus of elast were also measured.

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http://hdl.handle.net/10453/164310