Proposal for classification of concrete quality based on accelerated carbonation tests
Reinforcement corrosion is a problem affecting the durability of most concrete structures. When concrete is employed without proper care, it may function inadequately as a barrier, allowing aggressive ions or acidic substances in the atmosphere to attack steel rebars. The principal agents responsibl...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-12-01
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| Series: | Case Studies in Construction Materials |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214509523006460 |
| _version_ | 1797454554713817088 |
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| author | Daniel V. Ribeiro Nilson S. Amorim Júnior Bruna S. Santos Henrique A. Santana Silas A. Pinto |
| author_facet | Daniel V. Ribeiro Nilson S. Amorim Júnior Bruna S. Santos Henrique A. Santana Silas A. Pinto |
| author_sort | Daniel V. Ribeiro |
| collection | DOAJ |
| description | Reinforcement corrosion is a problem affecting the durability of most concrete structures. When concrete is employed without proper care, it may function inadequately as a barrier, allowing aggressive ions or acidic substances in the atmosphere to attack steel rebars. The principal agents responsible for corrosion are carbon dioxide (CO2) and chlorides (Cl-). Most carbonation research is based on accelerated carbonation tests. Thus, there is an important need to evaluate this process, via comparison with samples having undergone natural carbonation. However, as long-term analysis is required, such studies are scarce. This study proposes classifications of concretes regarding carbonation risks, based on carbonation coefficients obtained through accelerated tests (Kacel). An extensive literature review is conducted, compiling Kacel results and their correlations with values of natural carbonation coefficients (Knat). The results provide an improved classification of concretes regarding their resistance to carbonation, which will help researchers and designers to specify the concrete. |
| first_indexed | 2024-03-09T15:39:44Z |
| format | Article |
| id | doaj.art-4553ab5a969c4295921f490f979c0337 |
| institution | Directory Open Access Journal |
| issn | 2214-5095 |
| language | English |
| last_indexed | 2024-03-09T15:39:44Z |
| publishDate | 2023-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Construction Materials |
| spelling | doaj.art-4553ab5a969c4295921f490f979c03372023-11-25T04:48:55ZengElsevierCase Studies in Construction Materials2214-50952023-12-0119e02466Proposal for classification of concrete quality based on accelerated carbonation testsDaniel V. Ribeiro0Nilson S. Amorim Júnior1Bruna S. Santos2Henrique A. Santana3Silas A. Pinto4Department of Materials Science and Technology / Federal University of Bahia, Rua Aristides Novis, 02. Federação. 40210–630. Salvador/BA, Brazil; Corresponding author.Post-Graduate Program in Civil Engineering (PPEC) / Federal University of Bahia, Rua Aristides Novis, 02. Federação. 40210–630. Salvador/BA, BrazilPost-Graduate Program in Civil Engineering (PPEC) / Federal University of Bahia, Rua Aristides Novis, 02. Federação. 40210–630. Salvador/BA, BrazilPost-Graduate Program in Civil Engineering (PPEC) / Federal University of Bahia, Rua Aristides Novis, 02. Federação. 40210–630. Salvador/BA, BrazilDepartment of Technology / State University of Feira de Santana, Av. Transnordestina, s/n. Novo Horizonte. 44036–900. Feira de Santana/BA, BrazilReinforcement corrosion is a problem affecting the durability of most concrete structures. When concrete is employed without proper care, it may function inadequately as a barrier, allowing aggressive ions or acidic substances in the atmosphere to attack steel rebars. The principal agents responsible for corrosion are carbon dioxide (CO2) and chlorides (Cl-). Most carbonation research is based on accelerated carbonation tests. Thus, there is an important need to evaluate this process, via comparison with samples having undergone natural carbonation. However, as long-term analysis is required, such studies are scarce. This study proposes classifications of concretes regarding carbonation risks, based on carbonation coefficients obtained through accelerated tests (Kacel). An extensive literature review is conducted, compiling Kacel results and their correlations with values of natural carbonation coefficients (Knat). The results provide an improved classification of concretes regarding their resistance to carbonation, which will help researchers and designers to specify the concrete.http://www.sciencedirect.com/science/article/pii/S2214509523006460ConcreteCarbonationClassificationAccelerated testsEnvironmental conditions |
| spellingShingle | Daniel V. Ribeiro Nilson S. Amorim Júnior Bruna S. Santos Henrique A. Santana Silas A. Pinto Proposal for classification of concrete quality based on accelerated carbonation tests Case Studies in Construction Materials Concrete Carbonation Classification Accelerated tests Environmental conditions |
| title | Proposal for classification of concrete quality based on accelerated carbonation tests |
| title_full | Proposal for classification of concrete quality based on accelerated carbonation tests |
| title_fullStr | Proposal for classification of concrete quality based on accelerated carbonation tests |
| title_full_unstemmed | Proposal for classification of concrete quality based on accelerated carbonation tests |
| title_short | Proposal for classification of concrete quality based on accelerated carbonation tests |
| title_sort | proposal for classification of concrete quality based on accelerated carbonation tests |
| topic | Concrete Carbonation Classification Accelerated tests Environmental conditions |
| url | http://www.sciencedirect.com/science/article/pii/S2214509523006460 |
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