Carbonation Potential of Cementitious Structures in Service and Post-Demolition: A Review
The construction sector is responsible for a great environmental impact. The cement industry, which is included in this sector, emits about 650 to 800 kg of CO<sub>2</sub> per each tonne of cement produced, being one of the most polluting industries in terms of greenhouse gas emissions....
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-03-01
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| Series: | CivilEng |
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| Online Access: | https://www.mdpi.com/2673-4109/3/2/13 |
| _version_ | 1797488703931678720 |
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| author | Cinthia Maia Pederneiras Catarina Brazão Farinha Rosário Veiga |
| author_facet | Cinthia Maia Pederneiras Catarina Brazão Farinha Rosário Veiga |
| author_sort | Cinthia Maia Pederneiras |
| collection | DOAJ |
| description | The construction sector is responsible for a great environmental impact. The cement industry, which is included in this sector, emits about 650 to 800 kg of CO<sub>2</sub> per each tonne of cement produced, being one of the most polluting industries in terms of greenhouse gas emissions. The cement manufacturing process releases about 7% of the total worldwide CO<sub>2</sub> emissions. However, concrete and cement-based materials present CO<sub>2</sub> uptake potential during their service life and post-demolition through carbonation processes. The carbonation reactions rate depends on several factors, namely type and content of cement, porosity of concrete, temperature, relative humidity and exposure conditions area. Therefore, to estimate the CO<sub>2</sub> capture of concrete during its life cycle is not a straightforward calculation. Some studies have been developed using different methodologies in order to evaluate the CO<sub>2</sub> potential of cementitious elements in service and post-demolition. This paper reviews the documented approaches that quantify the CO<sub>2</sub> uptake of concrete over time, summarizing the assumptions adopted for each previous work. Overall, it was concluded that part of the CO<sub>2</sub> emissions released during cement production are reabsorbed by concrete products during their life cycle, which partially offsets the environmental impact and reduces the CO<sub>2</sub> footprint of the cement industry. |
| first_indexed | 2024-03-10T00:06:06Z |
| format | Article |
| id | doaj.art-445f642df04d4cf1951bb24547ebd9a4 |
| institution | Directory Open Access Journal |
| issn | 2673-4109 |
| language | English |
| last_indexed | 2024-03-10T00:06:06Z |
| publishDate | 2022-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | CivilEng |
| spelling | doaj.art-445f642df04d4cf1951bb24547ebd9a42023-11-23T16:07:11ZengMDPI AGCivilEng2673-41092022-03-013221122310.3390/civileng3020013Carbonation Potential of Cementitious Structures in Service and Post-Demolition: A ReviewCinthia Maia Pederneiras0Catarina Brazão Farinha1Rosário Veiga2c5Lab-Sustainable Construction Materials Association, Edifício Central Park, Rua Central Park 6, 2795-242 Linda-a-Velha, Portugalc5Lab-Sustainable Construction Materials Association, Edifício Central Park, Rua Central Park 6, 2795-242 Linda-a-Velha, PortugalNational Laboratory for Civil Engineering, Av. do Brasil 101, 1700-066 Lisbon, PortugalThe construction sector is responsible for a great environmental impact. The cement industry, which is included in this sector, emits about 650 to 800 kg of CO<sub>2</sub> per each tonne of cement produced, being one of the most polluting industries in terms of greenhouse gas emissions. The cement manufacturing process releases about 7% of the total worldwide CO<sub>2</sub> emissions. However, concrete and cement-based materials present CO<sub>2</sub> uptake potential during their service life and post-demolition through carbonation processes. The carbonation reactions rate depends on several factors, namely type and content of cement, porosity of concrete, temperature, relative humidity and exposure conditions area. Therefore, to estimate the CO<sub>2</sub> capture of concrete during its life cycle is not a straightforward calculation. Some studies have been developed using different methodologies in order to evaluate the CO<sub>2</sub> potential of cementitious elements in service and post-demolition. This paper reviews the documented approaches that quantify the CO<sub>2</sub> uptake of concrete over time, summarizing the assumptions adopted for each previous work. Overall, it was concluded that part of the CO<sub>2</sub> emissions released during cement production are reabsorbed by concrete products during their life cycle, which partially offsets the environmental impact and reduces the CO<sub>2</sub> footprint of the cement industry.https://www.mdpi.com/2673-4109/3/2/13carbonationcarbon dioxide uptakecement industryconcrete elementsCO<sub>2</sub> life cycle |
| spellingShingle | Cinthia Maia Pederneiras Catarina Brazão Farinha Rosário Veiga Carbonation Potential of Cementitious Structures in Service and Post-Demolition: A Review CivilEng carbonation carbon dioxide uptake cement industry concrete elements CO<sub>2</sub> life cycle |
| title | Carbonation Potential of Cementitious Structures in Service and Post-Demolition: A Review |
| title_full | Carbonation Potential of Cementitious Structures in Service and Post-Demolition: A Review |
| title_fullStr | Carbonation Potential of Cementitious Structures in Service and Post-Demolition: A Review |
| title_full_unstemmed | Carbonation Potential of Cementitious Structures in Service and Post-Demolition: A Review |
| title_short | Carbonation Potential of Cementitious Structures in Service and Post-Demolition: A Review |
| title_sort | carbonation potential of cementitious structures in service and post demolition a review |
| topic | carbonation carbon dioxide uptake cement industry concrete elements CO<sub>2</sub> life cycle |
| url | https://www.mdpi.com/2673-4109/3/2/13 |
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