Self-healing behavior of engineered cementitious composites (ECC) with superabsorbent polymers (SAPs) was investigated in this paper. Four point bending tests were used to precrack ECC specimens at the age of 7 and 28 days, respectively. The precracked samples were then…
Self-healing behavior of engineered cementitious composites (ECC) with superabsorbent polymers (SAPs) was investigated in this paper. Four point bending tests were used to precrack ECC specimens at the age of 7 and 28 days, respectively. The precracked samples were then cured in 99%RH curing and 99%RH/room air cycle curing to promote the occurrence of self-healing behavior and in room air curing for control. The addition of SAPs help tighten the crack width, resulting in enhanced flexural stiffness for the 99%RH cured and 99%RH/room air cycle cured samples. Furthermore, the effect of SAPs also promotes a larger degree recovery of deformation capacity, despite of much lower the initial deformation capacity for ECC2. The self-healed samples were observed by environment scanning electron microscope (ESEM) to reveal the products of self-healing behavior.