Influence of curing temperatures on the performances of fiber-reinforced concrete

•The influence of curing temperatures on the performances of FRCs were studied.•The curing temperatures and curing ages have positive effects on the compressive strength of concrete.•There is an optimum fiber content for the compressive strength of FRCs cured at low temperatures to resist loads.•The added fibers into concrete improves the ductility of concrete due to the fiber bridging effect.•The negative curing temperatures significantly inhibit the hydration reaction.