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Bond-Slip Behavior between Stainless Steel Rebars and Concrete
Maintenance of reinforced concrete structures is a prevailing topic, especially with regard to lifeline structures and bridges, many of which are now designed with a service life beyond 100 years. Reinforcement made of ordinary (carbon) steel may corrode in aggressive environments. Stainless steel,...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7078846/ https://www.ncbi.nlm.nih.gov/pubmed/32098233 http://dx.doi.org/10.3390/ma13040979 |
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author | Pauletta, Margherita Rovere, Nicola Randl, Norbert Russo, Gaetano |
author_facet | Pauletta, Margherita Rovere, Nicola Randl, Norbert Russo, Gaetano |
author_sort | Pauletta, Margherita |
collection | PubMed |
description | Maintenance of reinforced concrete structures is a prevailing topic, especially with regard to lifeline structures and bridges, many of which are now designed with a service life beyond 100 years. Reinforcement made of ordinary (carbon) steel may corrode in aggressive environments. Stainless steel, being much more resistant to corrosion, is a valid solution to facilitate the protection of the works, increasing the service life and reducing the need for repair and maintenance. Despite the potential for stainless steel to reduce maintenance costs, studies investigating the influence of stainless steel on the behavior of reinforced concrete structures are limited. This study investigated the bond behavior of stainless steel rebars by means of experimental tests on reinforced concrete specimens with different concrete cover thicknesses, concrete strengths, and bar diameters. In each case, identical specimens with carbon steel reinforcement were tested for comparison. The failure modes of the specimens were examined, and a bond stress–slip relationship for stainless steel bars was established. This research shows that the bond behavior of stainless steel rebars is comparable to that of carbon steel bars. |
format | Online Article Text |
id | pubmed-7078846 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-70788462020-04-21 Bond-Slip Behavior between Stainless Steel Rebars and Concrete Pauletta, Margherita Rovere, Nicola Randl, Norbert Russo, Gaetano Materials (Basel) Article Maintenance of reinforced concrete structures is a prevailing topic, especially with regard to lifeline structures and bridges, many of which are now designed with a service life beyond 100 years. Reinforcement made of ordinary (carbon) steel may corrode in aggressive environments. Stainless steel, being much more resistant to corrosion, is a valid solution to facilitate the protection of the works, increasing the service life and reducing the need for repair and maintenance. Despite the potential for stainless steel to reduce maintenance costs, studies investigating the influence of stainless steel on the behavior of reinforced concrete structures are limited. This study investigated the bond behavior of stainless steel rebars by means of experimental tests on reinforced concrete specimens with different concrete cover thicknesses, concrete strengths, and bar diameters. In each case, identical specimens with carbon steel reinforcement were tested for comparison. The failure modes of the specimens were examined, and a bond stress–slip relationship for stainless steel bars was established. This research shows that the bond behavior of stainless steel rebars is comparable to that of carbon steel bars. MDPI 2020-02-21 /pmc/articles/PMC7078846/ /pubmed/32098233 http://dx.doi.org/10.3390/ma13040979 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Pauletta, Margherita Rovere, Nicola Randl, Norbert Russo, Gaetano Bond-Slip Behavior between Stainless Steel Rebars and Concrete |
title | Bond-Slip Behavior between Stainless Steel Rebars and Concrete |
title_full | Bond-Slip Behavior between Stainless Steel Rebars and Concrete |
title_fullStr | Bond-Slip Behavior between Stainless Steel Rebars and Concrete |
title_full_unstemmed | Bond-Slip Behavior between Stainless Steel Rebars and Concrete |
title_short | Bond-Slip Behavior between Stainless Steel Rebars and Concrete |
title_sort | bond-slip behavior between stainless steel rebars and concrete |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7078846/ https://www.ncbi.nlm.nih.gov/pubmed/32098233 http://dx.doi.org/10.3390/ma13040979 |
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