ABSTRACT
Application of lightweight self consolidating concrete (LWSCC) with expanded clay aggregate (trade name Liapor) are used more frequently in Europe in recent time. Using porous aggregate for high strength concretes might be surprising considering importance of strength of aggregate for strength of high-strength concrete. Lightweight aggregate (LWA) is porous and not very strong. Nevertheless, drop of volume weight of concrete with strength of 40-50 N/mm2
below 1800 kg/m3 can represent certain cost saving due to reduction of total construction weight.
