Details
| Original language | English |
|---|---|
| Title of host publication | Proceedings for the 6th fib International Congress, 2022- Concrete Innovation for Sustainability |
| Editors | Stine Stokkeland, Henny Cathrine Braarud |
| Pages | 143-152 |
| Number of pages | 10 |
| Publication status | Published - 2022 |
| Event | 6th fib International Congress on Concrete Innovation for Sustainability, 2022 - Oslo, Norway Duration: 12 Jun 2022 → 16 Jun 2022 |
Publication series
| Name | fib Symposium |
|---|---|
| ISSN (Print) | 2617-4820 |
Abstract
The production of building materials and here especially of concrete and its constituent cement is afflicted with substantial CO2 emissions, currently amounting to more than 8% of the world’s total anthropogenic CO2 footprint. Following the world’s climate goals agreed upon in the UNs climate conferences, a pronounced reduction in emissions from cement and concrete production is mandatory. Substantial progress in developing emissions-reduced concretes have been reported in the literature. However, these solutions are only hesitantly being used in practical applications. This on the one hand has to do with the unknown risks going along with new concrete mixtures such as a reduced robustness. On the other hand – and more importantly – incentives and requirements to use new solutions are lacking. This is especially true when looking into the design process of concrete structures, where ecological requirements currently only play a minor role or are completely neglected. To counteract this negligence, within this paper a new limit state termed ‘Climate Limit State (CLS)’ is proposed, in order to amend the currently established limit state considerations Ultimate Limit State (ULS), Serviceability Limit State (SLS) and Durability Limit State. The CLS considers the CO2-emissions resulting from the production of a defined concrete member and references them to the potential service life of the structure. The limit state is introduced by comparing this result to a reference state and additionally introducing mankind’s CO2-budget to limit the global warming. With the proposed CLS, risk for the structure as well as the users resulting from climate change can be considered.
Keywords
- Climate Limit State, CO Budget, Concrete, Sustainability
ASJC Scopus subject areas
- Engineering(all)
- Civil and Structural Engineering
- Engineering(all)
- Building and Construction
- Materials Science(all)
- Materials Science (miscellaneous)
Sustainable Development Goals
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Proceedings for the 6th fib International Congress, 2022- Concrete Innovation for Sustainability. ed. / Stine Stokkeland; Henny Cathrine Braarud. 2022. p. 143-152 (fib Symposium).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Climate limit state (CLS) for building structures
T2 - 6th fib International Congress on Concrete Innovation for Sustainability, 2022
AU - Haist, Michael
AU - Bergmeister, Konrad
AU - Curbach, Manfred
AU - Deiters, Macielle V.
AU - Forman, Patrick
AU - Gaganelis, Georgios
AU - Gerlach, Jesko
AU - Mark, Peter
AU - Moffatt, Jack
AU - Müller, Christoph
AU - Müller, Harald S.
AU - Reiners, Jochen
AU - Schack, Tobias
AU - Scope, Christoph
AU - Tietze, Matthias
AU - Voit, Klaus
PY - 2022
Y1 - 2022
N2 - The production of building materials and here especially of concrete and its constituent cement is afflicted with substantial CO2 emissions, currently amounting to more than 8% of the world’s total anthropogenic CO2 footprint. Following the world’s climate goals agreed upon in the UNs climate conferences, a pronounced reduction in emissions from cement and concrete production is mandatory. Substantial progress in developing emissions-reduced concretes have been reported in the literature. However, these solutions are only hesitantly being used in practical applications. This on the one hand has to do with the unknown risks going along with new concrete mixtures such as a reduced robustness. On the other hand – and more importantly – incentives and requirements to use new solutions are lacking. This is especially true when looking into the design process of concrete structures, where ecological requirements currently only play a minor role or are completely neglected. To counteract this negligence, within this paper a new limit state termed ‘Climate Limit State (CLS)’ is proposed, in order to amend the currently established limit state considerations Ultimate Limit State (ULS), Serviceability Limit State (SLS) and Durability Limit State. The CLS considers the CO2-emissions resulting from the production of a defined concrete member and references them to the potential service life of the structure. The limit state is introduced by comparing this result to a reference state and additionally introducing mankind’s CO2-budget to limit the global warming. With the proposed CLS, risk for the structure as well as the users resulting from climate change can be considered.
AB - The production of building materials and here especially of concrete and its constituent cement is afflicted with substantial CO2 emissions, currently amounting to more than 8% of the world’s total anthropogenic CO2 footprint. Following the world’s climate goals agreed upon in the UNs climate conferences, a pronounced reduction in emissions from cement and concrete production is mandatory. Substantial progress in developing emissions-reduced concretes have been reported in the literature. However, these solutions are only hesitantly being used in practical applications. This on the one hand has to do with the unknown risks going along with new concrete mixtures such as a reduced robustness. On the other hand – and more importantly – incentives and requirements to use new solutions are lacking. This is especially true when looking into the design process of concrete structures, where ecological requirements currently only play a minor role or are completely neglected. To counteract this negligence, within this paper a new limit state termed ‘Climate Limit State (CLS)’ is proposed, in order to amend the currently established limit state considerations Ultimate Limit State (ULS), Serviceability Limit State (SLS) and Durability Limit State. The CLS considers the CO2-emissions resulting from the production of a defined concrete member and references them to the potential service life of the structure. The limit state is introduced by comparing this result to a reference state and additionally introducing mankind’s CO2-budget to limit the global warming. With the proposed CLS, risk for the structure as well as the users resulting from climate change can be considered.
KW - Climate Limit State
KW - CO Budget
KW - Concrete
KW - Sustainability
UR - http://www.scopus.com/inward/record.url?scp=85143899046&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:85143899046
SN - 9782940643158
T3 - fib Symposium
SP - 143
EP - 152
BT - Proceedings for the 6th fib International Congress, 2022- Concrete Innovation for Sustainability
A2 - Stokkeland, Stine
A2 - Braarud, Henny Cathrine
Y2 - 12 June 2022 through 16 June 2022
ER -