Empirical Coastal Atmospheric Corrosion of Masonry Metal Wall Ties

Not counting domestic dwellings, it has been estimated that in Australia alone, some tens of thousands of masonry buildings and structures have exceeded their design life, with many of these being at risk of partial (or worse) collapse from falling or dislodged masonry. This has significant implicat...

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Main Authors: Igor A. Chaves, Sean de Prazer, Barbara Jardim do Nascimento, Gregory Flowers
Format: Article
Language:English
Published: MDPI AG 2021-11-01
Series:Corrosion and Materials Degradation
Subjects:
Online Access:https://www.mdpi.com/2624-5558/2/4/35
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author Igor A. Chaves
Sean de Prazer
Barbara Jardim do Nascimento
Gregory Flowers
author_facet Igor A. Chaves
Sean de Prazer
Barbara Jardim do Nascimento
Gregory Flowers
author_sort Igor A. Chaves
collection DOAJ
description Not counting domestic dwellings, it has been estimated that in Australia alone, some tens of thousands of masonry buildings and structures have exceeded their design life, with many of these being at risk of partial (or worse) collapse from falling or dislodged masonry. This has significant implications for human life but also for the urban environment and economic health of building owners, managers, and insurers and for local and national economies. This risk can mainly be attributed to the slow deterioration of masonry under atmospheric and other environments and the corrosion of so-called wall ties. Wall ties are relatively thin pieces of steel that tie the outer leaf of masonry walls to the stabilized inner leaf. The problem is likely severe for scenarios such as cyclonic and earthquake events, as they cause area-wide damage and the potential wide-spread loss of human life—losses that could be prevented by timely intervention. This paper reports on the in situ inspection of two case study buildings and the data obtained from controlled wall tie corrosion field trials, which are used to develop predictive models of structural response. These models will inform practical tools that will be developed for building assessment, cost-effective monitoring, and rectification, assisting in the management of existing masonry buildings.
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spelling doaj.art-156bab9134fa45c2b540c538236dff792023-11-23T07:45:47ZengMDPI AGCorrosion and Materials Degradation2624-55582021-11-012465766510.3390/cmd2040035Empirical Coastal Atmospheric Corrosion of Masonry Metal Wall TiesIgor A. Chaves0Sean de Prazer1Barbara Jardim do Nascimento2Gregory Flowers3Centre for Infrastructure Performance and Reliability, The University of Newcastle, Newcastle, NSW 2308, AustraliaDepartment of Mines, Industry Regulation and Safety, Government of Western Australia, Perth, WA 6107, AustraliaCentre for Infrastructure Performance and Reliability, The University of Newcastle, Newcastle, NSW 2308, AustraliaDepartment of Mines, Industry Regulation and Safety, Government of Western Australia, Perth, WA 6107, AustraliaNot counting domestic dwellings, it has been estimated that in Australia alone, some tens of thousands of masonry buildings and structures have exceeded their design life, with many of these being at risk of partial (or worse) collapse from falling or dislodged masonry. This has significant implications for human life but also for the urban environment and economic health of building owners, managers, and insurers and for local and national economies. This risk can mainly be attributed to the slow deterioration of masonry under atmospheric and other environments and the corrosion of so-called wall ties. Wall ties are relatively thin pieces of steel that tie the outer leaf of masonry walls to the stabilized inner leaf. The problem is likely severe for scenarios such as cyclonic and earthquake events, as they cause area-wide damage and the potential wide-spread loss of human life—losses that could be prevented by timely intervention. This paper reports on the in situ inspection of two case study buildings and the data obtained from controlled wall tie corrosion field trials, which are used to develop predictive models of structural response. These models will inform practical tools that will be developed for building assessment, cost-effective monitoring, and rectification, assisting in the management of existing masonry buildings.https://www.mdpi.com/2624-5558/2/4/35masonrydouble leafveneer wallsatmosphericcorrosionstructural stability
spellingShingle Igor A. Chaves
Sean de Prazer
Barbara Jardim do Nascimento
Gregory Flowers
Empirical Coastal Atmospheric Corrosion of Masonry Metal Wall Ties
Corrosion and Materials Degradation
masonry
double leaf
veneer walls
atmospheric
corrosion
structural stability
title Empirical Coastal Atmospheric Corrosion of Masonry Metal Wall Ties
title_full Empirical Coastal Atmospheric Corrosion of Masonry Metal Wall Ties
title_fullStr Empirical Coastal Atmospheric Corrosion of Masonry Metal Wall Ties
title_full_unstemmed Empirical Coastal Atmospheric Corrosion of Masonry Metal Wall Ties
title_short Empirical Coastal Atmospheric Corrosion of Masonry Metal Wall Ties
title_sort empirical coastal atmospheric corrosion of masonry metal wall ties
topic masonry
double leaf
veneer walls
atmospheric
corrosion
structural stability
url https://www.mdpi.com/2624-5558/2/4/35
work_keys_str_mv AT igorachaves empiricalcoastalatmosphericcorrosionofmasonrymetalwallties
AT seandeprazer empiricalcoastalatmosphericcorrosionofmasonrymetalwallties
AT barbarajardimdonascimento empiricalcoastalatmosphericcorrosionofmasonrymetalwallties
AT gregoryflowers empiricalcoastalatmosphericcorrosionofmasonrymetalwallties