Main durability characteristics of self-compacting concrete

When evaluating the durability performance of concrete structures by on-site determination of transport properties, a fundamental knowledge is needed concerning the interrelation between microstructure, transport properties, and durability behaviour. For self-compacting concrete (SCC), the durability behaviour migtht be different in comparison with traditionally vibrated concrete (TVC), because of the different mix design and the absence of vibration. The durability of SCC was studied within RILEM Technical Committee TC 205-DSC on "Durability of Self-Compacting". First, the available information concerning pore structure, air-void system and transport mechanisms was gathered. Afterwards, the available durability results were studied and summarised keeping in mind the fundamental mechanisms and driving forces. In this way a more general view on durability of SCC has been obtained. The obtained information is also very valuable for the improvement of the material for new buildings, and for repair of existing buildings.