In the serviceability state of asphalt pavement, several pavement distresses are encountered; among them is the micro-cracks resulting from increasing traffic volume. Several maintenance and rehabilitation methods employed, such as patching and structural overlay are expensive and they consume a high amount of non-renewable resources. They also contribute significantly to the emission of greenhouse gases. It has been of a serious concern and interest among researchers to reduce the maintenance cost with a sustainable solution by introducing an induction healing technology via microwave heating system as a preventive maintenance approach. The microwave heating system requires a conductive particle in the asphalt pavement to accelerate the healing process. However, the steel fiber often used as the conductive particle is susceptible to corrosion under several environmental factors. Therefore, in this research, the effect of corrosion on the crack-healing potential was assessed using the water immersion method where the samples being introduced to sodium chloride (NaCl) solution to accelerate the corrosion event on copper-coated steel fiber. The formation of an oxide layer in the presence of moisture and oxygen on the surface of a copper-coated steel fiber shows a significant reverse impact on the ability of asphalt mortar to induce healing. A higher formation of rust can be detected when a higher volume of steel fiber was used. The study shows that the best performance of the copper-coated steel fiber is 3% (by volume of asphalt binder) based on the crack-healing potential, resistivity, and temperature distribution.
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