Multi-criteria optimisation for sustainable concrete structures
Bigaj-van Vliet, A.J.
Garzon Amortegui, J.F.
Godoi Bizarro, D.E.
Sustainable development is a complex, multi-disciplinary and multi-sectoral challenge with often contradicting objectives. As such, in the strongly fragmented construction sector often only single aspects of the challenge are subject of innovations. Therefore the construction sector faces a huge challenge to meet multiple goals set a.o. in the European Green Deal, 55% CO2 and 50% primary material reduction in 2030. A material with foremost impact in the construction sector is concrete (8% of worldwide CO2 emissions and >20% of annual waste). The reuse and recycling of concrete (secondary concrete) may drastically reduce the environmental impact of concrete. However, the variation in properties of secondary concrete and its effect on structural performance is currently unpredictable, so it is only used in limited percentages. At the same time, design with secondary concrete not only needs to fulfill safety criteria, but also environmental and cost criteria.
To reference this document use:
Recycled concrete aggregate
Buildings and Infrastructures
Annual fib Conference, Oslo, 1-10