Bond strength of RC beams subjected to cyclic thermal loading

► Studied bond strength of rebar lap splice in RC beams subjected to thermal cycles. ► Thermal cycles of 100, 200 and 300 °C peak temperature were varied from 7 to 28. ► Bond strength at 100 and 200 °C cycles is either at par with control or even more. ► At higher temperature (300 °C) bond strength reduces by up to 44%. ► Large rebar diameter (12 mm) exhibits more loss of bond due to splitting of cover.