Impact of carbonation on reinforced concrete structures, considering the increase of CO2 due to climate change in Brazil
Abstract Corrosion in reinforced concrete structures has become a growing concern, primarily due to climate change-related factors such as the rise of carbon dioxide levels, temperature fluctuations, and altered precipitation patterns. To address this, regional assessments are vital due to varying...
Saved in:
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Instituto Brasileiro do Concreto (IBRACON)
2025-01-01
|
| Series: | Revista IBRACON de Estruturas e Materiais |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952025000100213&lng=en&tlng=en |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832592500541358080 |
|---|---|
| author | Chiara Pinheiro Teodoro Rogério Carrazedo |
| author_facet | Chiara Pinheiro Teodoro Rogério Carrazedo |
| author_sort | Chiara Pinheiro Teodoro |
| collection | DOAJ |
| description | Abstract Corrosion in reinforced concrete structures has become a growing concern, primarily due to climate change-related factors such as the rise of carbon dioxide levels, temperature fluctuations, and altered precipitation patterns. To address this, regional assessments are vital due to varying environmental impacts. This study examines corrosion in Brazil, focusing on urban CO2 levels, employing NBR 6118 (2023) to predict depassivation, initial cracks, and failure due to excessive displacement (Serviceability Limit State). Results indicate a 50% depassivation probability within 13 years for a 2.5 cm concrete cover in the worst-case scenario. Additionally, the diameter of reinforcements greatly influences failure probability for excessive displacement, with a 311% increase over 45 years using a 5 mm diameter instead of 10 mm. These findings underscore the urgency of adapting construction practices to consider accelerated carbonation rates in urban environments and the need for ongoing research to refine predictive models and update construction standards accordingly. |
| format | Article |
| id | doaj-art-64e07a7b6dc6433e9ba3f62bec3946b6 |
| institution | Kabale University |
| issn | 1983-4195 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Instituto Brasileiro do Concreto (IBRACON) |
| record_format | Article |
| series | Revista IBRACON de Estruturas e Materiais |
| spelling | doaj-art-64e07a7b6dc6433e9ba3f62bec3946b62025-01-21T07:42:48ZengInstituto Brasileiro do Concreto (IBRACON)Revista IBRACON de Estruturas e Materiais1983-41952025-01-0118110.1590/s1983-41952025000800014Impact of carbonation on reinforced concrete structures, considering the increase of CO2 due to climate change in BrazilChiara Pinheiro Teodorohttps://orcid.org/0009-0002-5154-166XRogério Carrazedohttps://orcid.org/0000-0003-2750-034X Abstract Corrosion in reinforced concrete structures has become a growing concern, primarily due to climate change-related factors such as the rise of carbon dioxide levels, temperature fluctuations, and altered precipitation patterns. To address this, regional assessments are vital due to varying environmental impacts. This study examines corrosion in Brazil, focusing on urban CO2 levels, employing NBR 6118 (2023) to predict depassivation, initial cracks, and failure due to excessive displacement (Serviceability Limit State). Results indicate a 50% depassivation probability within 13 years for a 2.5 cm concrete cover in the worst-case scenario. Additionally, the diameter of reinforcements greatly influences failure probability for excessive displacement, with a 311% increase over 45 years using a 5 mm diameter instead of 10 mm. These findings underscore the urgency of adapting construction practices to consider accelerated carbonation rates in urban environments and the need for ongoing research to refine predictive models and update construction standards accordingly.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952025000100213&lng=en&tlng=encarbonationreinforced concreteMonte Carlo simulationFinite Element Method based on Positionsclimate change |
| spellingShingle | Chiara Pinheiro Teodoro Rogério Carrazedo Impact of carbonation on reinforced concrete structures, considering the increase of CO2 due to climate change in Brazil Revista IBRACON de Estruturas e Materiais carbonation reinforced concrete Monte Carlo simulation Finite Element Method based on Positions climate change |
| title | Impact of carbonation on reinforced concrete structures, considering the increase of CO2 due to climate change in Brazil |
| title_full | Impact of carbonation on reinforced concrete structures, considering the increase of CO2 due to climate change in Brazil |
| title_fullStr | Impact of carbonation on reinforced concrete structures, considering the increase of CO2 due to climate change in Brazil |
| title_full_unstemmed | Impact of carbonation on reinforced concrete structures, considering the increase of CO2 due to climate change in Brazil |
| title_short | Impact of carbonation on reinforced concrete structures, considering the increase of CO2 due to climate change in Brazil |
| title_sort | impact of carbonation on reinforced concrete structures considering the increase of co2 due to climate change in brazil |
| topic | carbonation reinforced concrete Monte Carlo simulation Finite Element Method based on Positions climate change |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952025000100213&lng=en&tlng=en |
| work_keys_str_mv | AT chiarapinheiroteodoro impactofcarbonationonreinforcedconcretestructuresconsideringtheincreaseofco2duetoclimatechangeinbrazil AT rogeriocarrazedo impactofcarbonationonreinforcedconcretestructuresconsideringtheincreaseofco2duetoclimatechangeinbrazil |