Chloride Penetration through Cracks in High-Performance Concrete and Surface Treatment System for Crack Healing

For enhancing the service life of concrete structures, it is very important to minimize crack at surface. Even if these cracks are very small, the problem is to which extend these cracks may jeopardize the durability of these decks. It was proposed that crack depth corresponding with critical crack...

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Main Author: In-Seok Yoon
Format: Article
Language:English
Published: Hindawi Limited 2012-01-01
Series:Advances in Materials Science and Engineering
Online Access:http://dx.doi.org/10.1155/2012/294571
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spelling doaj-07826e01f95e4997a369a40ee7d945282020-11-24T23:13:18ZengHindawi LimitedAdvances in Materials Science and Engineering1687-84341687-84422012-01-01201210.1155/2012/294571294571Chloride Penetration through Cracks in High-Performance Concrete and Surface Treatment System for Crack HealingIn-Seok Yoon0Department of Construction Information Engineering, Induk University, Seoul 139-749, Republic of KoreaFor enhancing the service life of concrete structures, it is very important to minimize crack at surface. Even if these cracks are very small, the problem is to which extend these cracks may jeopardize the durability of these decks. It was proposed that crack depth corresponding with critical crack width from the surface is a crucial factor in view of durability design of concrete structures. It was necessary to deal with chloride penetration through microcracks characterized with the mixing features of concrete. This study is devoted to examine the effect of high strength concrete and reinforcement of steel fiber on chloride penetration through cracks. High strength concrete is regarded as an excellent barrier to resist chloride penetration. However, durability performance of cracked high strength concrete was reduced seriously up to that of ordinary cracked concrete. Steel fiber reinforcement is effective to reduce chloride penetration through cracks because steel fiber reinforcement can lead to reduce crack depth significantly. Meanwhile, surface treatment systems are put on the surface of the concrete in order to seal the concrete. The key-issue is to which extend a sealing is able to ensure that chloride-induced corrosion can be prevented. As a result, penetrant cannot cure cracks, however, coating and combined treatment can prevent chloride from flowing in concrete with maximum crack width of 0.06 mm and 0.08 mm, respectively.http://dx.doi.org/10.1155/2012/294571
collection DOAJ
language English
format Article
sources DOAJ
author In-Seok Yoon
spellingShingle In-Seok Yoon
Chloride Penetration through Cracks in High-Performance Concrete and Surface Treatment System for Crack Healing
Advances in Materials Science and Engineering
author_facet In-Seok Yoon
author_sort In-Seok Yoon
title Chloride Penetration through Cracks in High-Performance Concrete and Surface Treatment System for Crack Healing
title_short Chloride Penetration through Cracks in High-Performance Concrete and Surface Treatment System for Crack Healing
title_full Chloride Penetration through Cracks in High-Performance Concrete and Surface Treatment System for Crack Healing
title_fullStr Chloride Penetration through Cracks in High-Performance Concrete and Surface Treatment System for Crack Healing
title_full_unstemmed Chloride Penetration through Cracks in High-Performance Concrete and Surface Treatment System for Crack Healing
title_sort chloride penetration through cracks in high-performance concrete and surface treatment system for crack healing
publisher Hindawi Limited
series Advances in Materials Science and Engineering
issn 1687-8434
1687-8442
publishDate 2012-01-01
description For enhancing the service life of concrete structures, it is very important to minimize crack at surface. Even if these cracks are very small, the problem is to which extend these cracks may jeopardize the durability of these decks. It was proposed that crack depth corresponding with critical crack width from the surface is a crucial factor in view of durability design of concrete structures. It was necessary to deal with chloride penetration through microcracks characterized with the mixing features of concrete. This study is devoted to examine the effect of high strength concrete and reinforcement of steel fiber on chloride penetration through cracks. High strength concrete is regarded as an excellent barrier to resist chloride penetration. However, durability performance of cracked high strength concrete was reduced seriously up to that of ordinary cracked concrete. Steel fiber reinforcement is effective to reduce chloride penetration through cracks because steel fiber reinforcement can lead to reduce crack depth significantly. Meanwhile, surface treatment systems are put on the surface of the concrete in order to seal the concrete. The key-issue is to which extend a sealing is able to ensure that chloride-induced corrosion can be prevented. As a result, penetrant cannot cure cracks, however, coating and combined treatment can prevent chloride from flowing in concrete with maximum crack width of 0.06 mm and 0.08 mm, respectively.
url http://dx.doi.org/10.1155/2012/294571
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