Determination of characteristic compressive strengths of concrete and derived parameters in existing contexts

The determination of the actual mechanical properties of the materials used in building is a central element in the reanalysis of existing load-bearing structures. Generally, such values can be estimated with the aid of “DAfStb-Sachstandberichts Bauen im Bestand – Teil I” (DAfStb Status Report on Construction in Existing Contexts – Part I) by the classification of historical material definitions from planning documents relating to strength values according to Eurocode. For a reliable reanalysis including a potential modification of the partial safety factors, it is however necessary to check...