Evaluation of CO2 emission�absorption of fly-ash-blended concrete structures using cement-hydration-based carbonation model
© 2014, RILEM. Concrete contains cement, which is known to emit large amounts of CO 2 in production, absorbs a certain amount of CO 2 by triggering a carbonation reaction with atmospheric CO 2 . However, this CO 2 absorption is generally neglected when evaluating the CO 2 emission from concrete....
| Main Authors: | , , , , |
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| Format: | Journal Article |
| Published: |
Kluwer Academic Publishers
2015
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| Online Access: | http://hdl.handle.net/20.500.11937/62125 |
| _version_ | 1848760793184600064 |
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| author | Cho, H. Lee, H. Wang, X. Ismail, Mohamed Park, W. |
| author_facet | Cho, H. Lee, H. Wang, X. Ismail, Mohamed Park, W. |
| author_sort | Cho, H. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | © 2014, RILEM. Concrete contains cement, which is known to emit large amounts of CO 2 in production, absorbs a certain amount of CO 2 by triggering a carbonation reaction with atmospheric CO 2 . However, this CO 2 absorption is generally neglected when evaluating the CO 2 emission from concrete. Thus, it is necessary to discover and consider ways to quantitatively evaluate the CO 2 absorbed by concrete. To this end, a carbonation model that can accurately predict the carbonation depth of concrete is necessary. However, the existing carbonation prediction equation is a simple regression equation that merely considers factors such as water–cement ratio and CO 2 concentration, and has a drawback as the results vary considerably form one researcher to another. Meanwhile, currently the use of fly ash, which is effective in reducing both of hydration heat and CO 2 emission and enhancement of long-age strength, is increasing. Thus, in the present study, a method for measuring CO 2 absorption by fly-ash-blended concrete structures using a carbonation model based on fly-ash-blended hydration was developed and evaluated. An apartment complex in which fly-ash-blended concrete was used is evaluated for its CO 2 absorption by using the developed method in this study. As a result, carbonation depth, amounts of CO 2 emission and absorption of fly-ash-blended concrete structure by design strength was obtained. The CO 2 absorbed by service life is approximately 3.79–8.47 % of the CO 2 emitted during the manufacturing of the concrete structure. |
| first_indexed | 2025-11-14T10:21:25Z |
| format | Journal Article |
| id | curtin-20.500.11937-62125 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T10:21:25Z |
| publishDate | 2015 |
| publisher | Kluwer Academic Publishers |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-621252023-08-02T06:39:10Z Evaluation of CO2 emission�absorption of fly-ash-blended concrete structures using cement-hydration-based carbonation model Cho, H. Lee, H. Wang, X. Ismail, Mohamed Park, W. © 2014, RILEM. Concrete contains cement, which is known to emit large amounts of CO 2 in production, absorbs a certain amount of CO 2 by triggering a carbonation reaction with atmospheric CO 2 . However, this CO 2 absorption is generally neglected when evaluating the CO 2 emission from concrete. Thus, it is necessary to discover and consider ways to quantitatively evaluate the CO 2 absorbed by concrete. To this end, a carbonation model that can accurately predict the carbonation depth of concrete is necessary. However, the existing carbonation prediction equation is a simple regression equation that merely considers factors such as water–cement ratio and CO 2 concentration, and has a drawback as the results vary considerably form one researcher to another. Meanwhile, currently the use of fly ash, which is effective in reducing both of hydration heat and CO 2 emission and enhancement of long-age strength, is increasing. Thus, in the present study, a method for measuring CO 2 absorption by fly-ash-blended concrete structures using a carbonation model based on fly-ash-blended hydration was developed and evaluated. An apartment complex in which fly-ash-blended concrete was used is evaluated for its CO 2 absorption by using the developed method in this study. As a result, carbonation depth, amounts of CO 2 emission and absorption of fly-ash-blended concrete structure by design strength was obtained. The CO 2 absorbed by service life is approximately 3.79–8.47 % of the CO 2 emitted during the manufacturing of the concrete structure. 2015 Journal Article http://hdl.handle.net/20.500.11937/62125 10.1617/s11527-014-0455-8 Kluwer Academic Publishers restricted |
| spellingShingle | Cho, H. Lee, H. Wang, X. Ismail, Mohamed Park, W. Evaluation of CO2 emission�absorption of fly-ash-blended concrete structures using cement-hydration-based carbonation model |
| title | Evaluation of CO2 emission�absorption of fly-ash-blended concrete structures using cement-hydration-based carbonation model |
| title_full | Evaluation of CO2 emission�absorption of fly-ash-blended concrete structures using cement-hydration-based carbonation model |
| title_fullStr | Evaluation of CO2 emission�absorption of fly-ash-blended concrete structures using cement-hydration-based carbonation model |
| title_full_unstemmed | Evaluation of CO2 emission�absorption of fly-ash-blended concrete structures using cement-hydration-based carbonation model |
| title_short | Evaluation of CO2 emission�absorption of fly-ash-blended concrete structures using cement-hydration-based carbonation model |
| title_sort | evaluation of co2 emission�absorption of fly-ash-blended concrete structures using cement-hydration-based carbonation model |
| url | http://hdl.handle.net/20.500.11937/62125 |