Using an analysis of concrete and cement epd: verification, selection, assessment, benchmarking and target setting
Carbonation of concretes is a natural physico-chemical process that can be described as a reaction between the carbon dioxide contained in the air and the cement matrix. Carbonation concerns all concretes types in contact with the ambient air but also concretes in ground, from production stage to us...
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Czech Technical University in Prague
2022-03-01
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| Series: | Acta Polytechnica CTU Proceedings |
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| Online Access: | https://ojs.cvut.cz/ojs/index.php/APP/article/view/8057 |
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| author | Lucie Schmitt Jena Jeong Jean-Marc Potier Laurent Izoret Jonathan Mai-Nhu Nicolas Decousser Thomas Pernin |
| author_facet | Lucie Schmitt Jena Jeong Jean-Marc Potier Laurent Izoret Jonathan Mai-Nhu Nicolas Decousser Thomas Pernin |
| author_sort | Lucie Schmitt |
| collection | DOAJ |
| description | Carbonation of concretes is a natural physico-chemical process that can be described as a reaction between the carbon dioxide contained in the air and the cement matrix. Carbonation concerns all concretes types in contact with the ambient air but also concretes in ground, from production stage to use and end-of-life stages. The amount of carbon dioxide bound varies according to the type of binder, the compacity of concrete and the environmental conditions during the use and the end-of-life stages. To consider the re-carbonation of concrete, works have been carried out within the framework of the European standardization group CEN/TC229/WG5 and in CEN/TC104. A methodology to consider the re-carbonation of concrete structures has been proposed in the NF EN 16757 standard on environmental product declarations for concrete and concrete elements. In addition, FD CEN/TR 17310 provides detailed recommendations regarding carbonation and absorption of carbon dioxide in concrete and give some precisions for application of NF EN 16757. This is an important topic towards a sustainable development in the current context of circular economy and CO2 uptake related to the French energy labelling (E+C-). In this paper, numerical and analytical carbonation models are used to estimate the CO2 binding ability of concrete structures. The obtained results are compared to the methodology proposed in Appendix BB of NF EN 16757 standard. They confirm that the methodology described in the NF EN 16757 standard leads to estimated degree of carbonation of the same order of magnitude. The advantage of using more advanced models lies in a better consideration of environmental parameters, the possibility to simulate the behaviour of crushed concrete, its reuse in new concrete as recycled aggregate and the possibility to simulate the carbonation of concretes in ground. This is an immediate perspective in the ongoing work in the French national project FastCarb on accelerated carbonation of recycled concrete aggregates. |
| format | Article |
| id | doaj-art-025996889e5a41f095f18ee54625ceeb |
| institution | DOAJ |
| issn | 2336-5382 |
| language | English |
| publishDate | 2022-03-01 |
| publisher | Czech Technical University in Prague |
| record_format | Article |
| series | Acta Polytechnica CTU Proceedings |
| spelling | doaj-art-025996889e5a41f095f18ee54625ceeb2025-08-20T02:41:55ZengCzech Technical University in PragueActa Polytechnica CTU Proceedings2336-53822022-03-013354655110.14311/APP.2022.33.05465297Using an analysis of concrete and cement epd: verification, selection, assessment, benchmarking and target settingLucie Schmitt0Jena Jeong1Jean-Marc Potier2Laurent Izoret3Jonathan Mai-Nhu4Nicolas Decousser5Thomas Pernin6CERIB: Centre d’Etudes et de Recherche de l’Industrie du Béton, 1 Rue des Longs Reages, 28230 Épernon, FranceESTP: École Spéciale des Travaux Publics, 2-4 Rue Charras, 75009 Paris, FranceSNBPE: Le Syndicat National du Bêton Prêt à l’Emploi, 32 Allées d’Orléans, 33000 Bordeaux, FranceATILH: Association Technique de l’Industrie des Liants Hydrauliques, La Defense, 7 place de la Défense, 92974 Paris-La-Défense Cedex, FranceCERIB: Centre d’Etudes et de Recherche de l’Industrie du Béton, 1 Rue des Longs Reages, 28230 Épernon, FranceCERIB: Centre d’Etudes et de Recherche de l’Industrie du Béton, 1 Rue des Longs Reages, 28230 Épernon, FranceCERIB: Centre d’Etudes et de Recherche de l’Industrie du Béton, 1 Rue des Longs Reages, 28230 Épernon, FranceCarbonation of concretes is a natural physico-chemical process that can be described as a reaction between the carbon dioxide contained in the air and the cement matrix. Carbonation concerns all concretes types in contact with the ambient air but also concretes in ground, from production stage to use and end-of-life stages. The amount of carbon dioxide bound varies according to the type of binder, the compacity of concrete and the environmental conditions during the use and the end-of-life stages. To consider the re-carbonation of concrete, works have been carried out within the framework of the European standardization group CEN/TC229/WG5 and in CEN/TC104. A methodology to consider the re-carbonation of concrete structures has been proposed in the NF EN 16757 standard on environmental product declarations for concrete and concrete elements. In addition, FD CEN/TR 17310 provides detailed recommendations regarding carbonation and absorption of carbon dioxide in concrete and give some precisions for application of NF EN 16757. This is an important topic towards a sustainable development in the current context of circular economy and CO2 uptake related to the French energy labelling (E+C-). In this paper, numerical and analytical carbonation models are used to estimate the CO2 binding ability of concrete structures. The obtained results are compared to the methodology proposed in Appendix BB of NF EN 16757 standard. They confirm that the methodology described in the NF EN 16757 standard leads to estimated degree of carbonation of the same order of magnitude. The advantage of using more advanced models lies in a better consideration of environmental parameters, the possibility to simulate the behaviour of crushed concrete, its reuse in new concrete as recycled aggregate and the possibility to simulate the carbonation of concretes in ground. This is an immediate perspective in the ongoing work in the French national project FastCarb on accelerated carbonation of recycled concrete aggregates.https://ojs.cvut.cz/ojs/index.php/APP/article/view/8057concrete productsconcrete structuresmodelingre-carbonationstandardization |
| spellingShingle | Lucie Schmitt Jena Jeong Jean-Marc Potier Laurent Izoret Jonathan Mai-Nhu Nicolas Decousser Thomas Pernin Using an analysis of concrete and cement epd: verification, selection, assessment, benchmarking and target setting Acta Polytechnica CTU Proceedings concrete products concrete structures modeling re-carbonation standardization |
| title | Using an analysis of concrete and cement epd: verification, selection, assessment, benchmarking and target setting |
| title_full | Using an analysis of concrete and cement epd: verification, selection, assessment, benchmarking and target setting |
| title_fullStr | Using an analysis of concrete and cement epd: verification, selection, assessment, benchmarking and target setting |
| title_full_unstemmed | Using an analysis of concrete and cement epd: verification, selection, assessment, benchmarking and target setting |
| title_short | Using an analysis of concrete and cement epd: verification, selection, assessment, benchmarking and target setting |
| title_sort | using an analysis of concrete and cement epd verification selection assessment benchmarking and target setting |
| topic | concrete products concrete structures modeling re-carbonation standardization |
| url | https://ojs.cvut.cz/ojs/index.php/APP/article/view/8057 |
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