Abstract
Design for materials is a sustainable design strategy to reduce CO2 emissions from the built environment. As the materials themselves may increase the sustainable properties of a structural system, this does not mean that the structural system itself has its most sustainable configuration; the selected design approach also plays a role. This study aims to analyse to which extent can the choice of different cement compositions combined with distinct design approaches lead to material reductions – and ultimately, to CO2 savings. To this, a reinforced concrete slab system was designed to control bending and shear. Two cement compositions (class C20/25) were considered: an average common mixture and a more modern mixture with a lower clinker amount. The results confirm that an optimised design configuration combined with a modern cement composition can lead to immediate CO2 savings. This stresses the need for practitioners to investigate the potential offered by optimising design approaches in combination with more production-energy-efficient materials.
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Notes
- 1.
This mixture refers to the production of a cement with an average composition of cements produced in Germany in 2015 [14].
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Acknowledgements
The authors thank the company Schwenk Zement GmbH & Co. KG, Ulm, Germany for sharing data and knowledge about energy emissions of multiple cement types.
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Feiri, T., Kuhn, S., Ricker, M. (2023). Immediate CO2 Savings Through Optimised Design Approaches: A Case Study of Reinforced Concrete Flat Slabs. In: Ilki, A., Çavunt, D., Çavunt, Y.S. (eds) Building for the Future: Durable, Sustainable, Resilient. fib Symposium 2023. Lecture Notes in Civil Engineering, vol 349. Springer, Cham. https://doi.org/10.1007/978-3-031-32519-9_30
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