Flexural behaviour of fire damaged reinforced concrete slab

Abstract

The aim of this study was to investigate the flexural behaviour of fire damaged reinforced concrete slabs. The nine samples of one-way slab were heated under three different temperatures (i.e. 200°C, 400°C and 600°C) with three samples for each temperature and there were three more samples which considered as control samples were left to room temperature after 28 days of water curing. The specimens were allowed to cool in furnace and tested for flexural strength. The flexural behaviour curve of the samples were plotted and three mechanical properties (i.e. toughness, ductility and stiffness) of the samples were thoroughly examined. The residual flexural strength and mechanical properties were gradually decreased as the temperature increased.