Karin Lundgren is professor in Concrete Structures at the Division of Structural Engineering. Her research has been ranging from large scale (complete buildings) to small scale (material level) within the field of concrete structures. Common for all her research is the combination of modelling and experimental work. The modelling includes both the use of non-linear finite element analyses, and analytical work. Since Karins Ph. D. studies, one focus area has been modelling of the long-term behaviour of concrete structures subjected to deterioration due to environmental impacts, especially corrosion of reinforcement.