Simulation of Corrosion Induced Damage of Reinforced Concrete

This paper presents a finite element (FE) based numerical model to simulate the corrosion-induced cracking of reinforced concrete. Both uniform and non-uniform corrosion of steel in concrete is simulated. The effect of non-uniform corrosion distribution, cover depths, cover-to-rebar diameter ratio a...

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Bibliographic Details
Main Authors: Ahmed, Shaikh, Larner, Matthew
Other Authors: Not listed
Format: Conference Paper
Published: Engineers Australia 2012
Subjects:
Online Access:http://hdl.handle.net/20.500.11937/14087
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author Ahmed, Shaikh
Larner, Matthew
author2 Not listed
author_facet Not listed
Ahmed, Shaikh
Larner, Matthew
author_sort Ahmed, Shaikh
building Curtin Institutional Repository
collection Online Access
description This paper presents a finite element (FE) based numerical model to simulate the corrosion-induced cracking of reinforced concrete. Both uniform and non-uniform corrosion of steel in concrete is simulated. The effect of non-uniform corrosion distribution, cover depths, cover-to-rebar diameter ratio and compressive strengths of concrete on the cracking and cracking pressure are studied. The results indicate that the pressure required to cause the cracking of concrete cover under non-uniform corrosion are much smaller, between 40% and 50%, than those under uniform corrosion. The model predicts that the pressure require to cause the cracking of the concrete cover increases as the concrete compressive strength increases. It is also found that as the cover to rebar diameter ratio is increased, the pressure require to cause the cracking of concrete cover increases with a linear relationship between cover depth-to-rebar diameter ratio and pressure required to cause cracking of the concrete cover. The model is also verified with the experimental results.
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institution Curtin University Malaysia
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spelling curtin-20.500.11937-140872017-02-28T01:26:06Z Simulation of Corrosion Induced Damage of Reinforced Concrete Ahmed, Shaikh Larner, Matthew Not listed reinforced concrete Corrosion numerical model This paper presents a finite element (FE) based numerical model to simulate the corrosion-induced cracking of reinforced concrete. Both uniform and non-uniform corrosion of steel in concrete is simulated. The effect of non-uniform corrosion distribution, cover depths, cover-to-rebar diameter ratio and compressive strengths of concrete on the cracking and cracking pressure are studied. The results indicate that the pressure required to cause the cracking of concrete cover under non-uniform corrosion are much smaller, between 40% and 50%, than those under uniform corrosion. The model predicts that the pressure require to cause the cracking of the concrete cover increases as the concrete compressive strength increases. It is also found that as the cover to rebar diameter ratio is increased, the pressure require to cause the cracking of concrete cover increases with a linear relationship between cover depth-to-rebar diameter ratio and pressure required to cause cracking of the concrete cover. The model is also verified with the experimental results. 2012 Conference Paper http://hdl.handle.net/20.500.11937/14087 Engineers Australia restricted
spellingShingle reinforced concrete
Corrosion
numerical model
Ahmed, Shaikh
Larner, Matthew
Simulation of Corrosion Induced Damage of Reinforced Concrete
title Simulation of Corrosion Induced Damage of Reinforced Concrete
title_full Simulation of Corrosion Induced Damage of Reinforced Concrete
title_fullStr Simulation of Corrosion Induced Damage of Reinforced Concrete
title_full_unstemmed Simulation of Corrosion Induced Damage of Reinforced Concrete
title_short Simulation of Corrosion Induced Damage of Reinforced Concrete
title_sort simulation of corrosion induced damage of reinforced concrete
topic reinforced concrete
Corrosion
numerical model
url http://hdl.handle.net/20.500.11937/14087