Effect of repair in carbonated concrete with high water/cement ratio and shallow concrete cover.

Concrete carbonation affects the structure”™s service life. Even though there are well defined repair procedures, they are not widely known, thus employing a custom procedure. This investigation evaluated three repair procedures for reinforced concrete elements damaged by carbonation-induced corros...

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Main Authors: E. Moreno, R. Solís Carcaño, M. Torres López
Format: Article
Language:English
Published: Universidad del Zulia 2013-05-01
Series:Revista Técnica de la Facultad de Ingeniería
Subjects:
Online Access:https://www.produccioncientificaluz.org/index.php/tecnica/article/view/7189
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author E. Moreno
R. Solís Carcaño
M. Torres López
author_facet E. Moreno
R. Solís Carcaño
M. Torres López
author_sort E. Moreno
collection DOAJ
description Concrete carbonation affects the structure”™s service life. Even though there are well defined repair procedures, they are not widely known, thus employing a custom procedure. This investigation evaluated three repair procedures for reinforced concrete elements damaged by carbonation-induced corrosion, recreating critical conditions (high water/cement ratio and shallow concrete cover). Procedures A and B consisted in removing concrete at the rebar level (traditional procedure) before repair, adding a NaOH solution to the new concrete for procedure B. Procedure C consisted in removing contaminated concrete beyond the rebar level, placing new concrete without addition. Results show that due to the critical conditions recreated, none of the repair procedures allowed a significant increment of the structure”™s service life.
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spelling doaj.art-09d50226e6844380a31af333f59fae4c2022-12-22T04:40:23ZengUniversidad del ZuliaRevista Técnica de la Facultad de Ingeniería0254-07702477-93772013-05-01343Effect of repair in carbonated concrete with high water/cement ratio and shallow concrete cover.E. Moreno0R. Solís Carcaño1M. Torres López2Universidad Autónoma de Yucatán-MéxicoUniversidad Autónoma de Yucatán-MéxicoUniversidad Autónoma de Yucatán-México Concrete carbonation affects the structure”™s service life. Even though there are well defined repair procedures, they are not widely known, thus employing a custom procedure. This investigation evaluated three repair procedures for reinforced concrete elements damaged by carbonation-induced corrosion, recreating critical conditions (high water/cement ratio and shallow concrete cover). Procedures A and B consisted in removing concrete at the rebar level (traditional procedure) before repair, adding a NaOH solution to the new concrete for procedure B. Procedure C consisted in removing contaminated concrete beyond the rebar level, placing new concrete without addition. Results show that due to the critical conditions recreated, none of the repair procedures allowed a significant increment of the structure”™s service life. https://www.produccioncientificaluz.org/index.php/tecnica/article/view/7189carbonationconcretecorrosionlimestone aggregaterepair
spellingShingle E. Moreno
R. Solís Carcaño
M. Torres López
Effect of repair in carbonated concrete with high water/cement ratio and shallow concrete cover.
Revista Técnica de la Facultad de Ingeniería
carbonation
concrete
corrosion
limestone aggregate
repair
title Effect of repair in carbonated concrete with high water/cement ratio and shallow concrete cover.
title_full Effect of repair in carbonated concrete with high water/cement ratio and shallow concrete cover.
title_fullStr Effect of repair in carbonated concrete with high water/cement ratio and shallow concrete cover.
title_full_unstemmed Effect of repair in carbonated concrete with high water/cement ratio and shallow concrete cover.
title_short Effect of repair in carbonated concrete with high water/cement ratio and shallow concrete cover.
title_sort effect of repair in carbonated concrete with high water cement ratio and shallow concrete cover
topic carbonation
concrete
corrosion
limestone aggregate
repair
url https://www.produccioncientificaluz.org/index.php/tecnica/article/view/7189
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AT rsoliscarcano effectofrepairincarbonatedconcretewithhighwatercementratioandshallowconcretecover
AT mtorreslopez effectofrepairincarbonatedconcretewithhighwatercementratioandshallowconcretecover