Abstract
The Norwegian Sirkbygg project investigates the design for disassembly of prefabricated concrete com-ponents as a strategy to reduce the environmental impact of constructions. In the project, a mock-up of a building structure was constructed and disassembled with the objective to identify challenges for component reuse. Emphasis is placed on the design of connections for hollow-core slabs. The study investigates the use of adhesion-reducing agents as a technically and economically feasible method to facilitate the disassembly and reconditioning of such slabs, maintaining the advantages of wet-joints for force transfer and diaphragm action while avoiding fundamental changes to current production and construction processes.