Low carbon technologies to be challenged in the supply chain of concrete structures
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Détails bibliographiques
| Auteur(s): |
Akio Kasuga
(Sumitomo Mitsui Construction, Tokyo, Japan)
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| Médium: | papier de conférence | ||||
| Langue(s): | anglais | ||||
| Conférence: | IABSE Symposium: Construction’s Role for a World in Emergency, Manchester, United Kingdom, 10-14 April 2024 | ||||
| Publié dans: | IABSE Symposium Manchester 2024 | ||||
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| Page(s): | 46-53 | ||||
| Nombre total de pages (du PDF): | 8 | ||||
| DOI: | 10.2749/manchester.2024.0046 | ||||
| Abstrait: |
Cement used in structural concrete accounts for 60% of all cement. Thus, the amount of CO2 emission by cement in structural concrete in a year is about 5% of the amount emitted by mankind. LCA of structural concrete should consider not only the materials at the product stage but also the maintenance phase at the use stage after construction. A rough indicator is presented to grasp the CO2 emissions of structural concrete. And low-carbon technologies currently in use is introduced. Then the need for multi-cycle structural concrete with a circular economy is presented. Moreover, it is estimated that CO2 emissions due to disasters in the use stage could be enormous. The carbon neutrality of structural concrete is not a risk but an opportunity for us. |
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