Flexural behaviour and evaluation of ultra-high-performance fibre reinforced concrete beams cured at room temperature

Abstract Heat treatment is often required for ultra-high-performance concrete (UHPC) to achieve high strength. To broad its use in construction, the effect of different curing conditions on properties UHPC has been developed many years. The experimental investigation large scale fibre reinforced (UHPFRC) beams limited. In present study, UHPFRC specimens and cured at 20 °C were prepared investigate flexural behaviour. standard cubic compressive strength cannot be achieved temperature °C. bearing capacity under flexure was enhanced with increase reinforcement ratio. failure modes changed from ductile brittle as ratio increased 1.26 9.50%. behaviour room accordance previous studies. addition, calculation model CECS38-2004 underestimated bending moment under-reinforced (with 0 7.85%) overestimated ration