Surface Treatment for Corroding Concrete Sewers

Li, X; Jiang, G

Surface Treatment for Corroding Concrete Sewers

Li, X

Jiang, G

Permalink

Publisher:: Springer
Publication Type:: Chapter
Citation:: Microbiologically Influenced Corrosion of Concrete Sewers Mechanisms, Measurements, Modelling and Control Strategies, 2023, pp. 249-261
Issue Date:: 2023-01-01

Recently Added

	Filename	Description	Size
	978-3-031-29941-4_12.pdf	Published version	544.42 kB	Adobe PDF	View/Open

Copyright Clearance Process

Recently Added
In Progress
Open Access

This item is new to OPUS and is not currently available.

Full metadata record

Field	Value	Language
dc.contributor.author	Li, X https://orcid.org/0000-0003-1768-9556
dc.contributor.author	Jiang, G
dc.date.accessioned	2023-09-30T21:09:51Z
dc.date.available	2023-09-30T21:09:51Z
dc.date.issued	2023-01-01
dc.identifier.citation	Microbiologically Influenced Corrosion of Concrete Sewers Mechanisms, Measurements, Modelling and Control Strategies, 2023, pp. 249-261
dc.identifier.isbn	978-3-031-29940-7
dc.identifier.uri	http://hdl.handle.net/10453/172412
dc.description.abstract	To mitigate the corrosion on existing corroding sewers, various approaches of surface treatment have been developed including surface coating or lining, chemical spraying, and surface washing. These approaches target at isolating concrete from corrosive environments, inhibiting or removing the corrosion-inducing microorganisms, or increasing the corrosion resistance of the surfaces. Different coating/lining materials have been applied in corroding sewers, including polymer-based and cement-based materials. Polymer-based materials isolate the concrete from the corrosive environment, while cement-based materials generally have higher corrosion resistance, slowing down the corrosion development on concrete surfaces. For the same type of coating material, the corrosion mitigation performance varies in different studies. The chemical spraying majorly uses alkaline solutions or slurry such as magnesium hydroxide liquid and sodium. These solutions increase the surface pH of concrete, inhibiting re-establishment and activity of corrosion-inducing microorganisms. Although chemical spraying exhibit promising results in corrosion control, a frequent re-spay is required due to the wash-off of chemicals. Surface washing aims to remove the corrosion layer, which is the major habitat of corrosion-inducing microorganisms. However, in ordinary Portland cement-based concrete, the effect of surface washing on corrosion control is often temporal.
dc.format.extent	12
dc.language	en
dc.publisher	Springer
dc.relation.ispartof	Microbiologically Influenced Corrosion of Concrete Sewers Mechanisms, Measurements, Modelling and Control Strategies
dc.relation.ispartofseries	Engineering Materials
dc.relation.isbasedon	10.1007/978-3-031-29941-4_12
dc.rights	info:eu-repo/semantics/restrictedAccess
dc.title	Surface Treatment for Corroding Concrete Sewers
dc.type	Chapter
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - CTWW - Centre for Technology in Water and Wastewater Treatment
utslib.copyright.status	recently_added	*
pubs.consider-herdc	false
dc.date.updated	2023-09-30T21:09:50Z
pubs.place-of-publication	Switzerland
pubs.publication-status	Published
dc.location	Switzerland

Abstract:

To mitigate the corrosion on existing corroding sewers, various approaches of surface treatment have been developed including surface coating or lining, chemical spraying, and surface washing. These approaches target at isolating concrete from corrosive environments, inhibiting or removing the corrosion-inducing microorganisms, or increasing the corrosion resistance of the surfaces. Different coating/lining materials have been applied in corroding sewers, including polymer-based and cement-based materials. Polymer-based materials isolate the concrete from the corrosive environment, while cement-based materials generally have higher corrosion resistance, slowing down the corrosion development on concrete surfaces. For the same type of coating material, the corrosion mitigation performance varies in different studies. The chemical spraying majorly uses alkaline solutions or slurry such as magnesium hydroxide liquid and sodium. These solutions increase the surface pH of concrete, inhibiting re-establishment and activity of corrosion-inducing microorganisms. Although chemical spraying exhibit promising results in corrosion control, a frequent re-spay is required due to the wash-off of chemicals. Surface washing aims to remove the corrosion layer, which is the major habitat of corrosion-inducing microorganisms. However, in ordinary Portland cement-based concrete, the effect of surface washing on corrosion control is often temporal.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/172412