Evaluation of Self Healing Porous Asphalt for Road Construction

Abstract

This paper is summarizes the main results of experimental research on the induction healing of porous asphalt with steel wool fibres. Self healing Technology is new field within material engineering and is changing the way of material behave. The aging of asphalt under weather and traffic associated with the formation of micro cracks on surface layer of pavement by adding a conductive material in asphalt production, such as steel fibres, the possibilities arises of heating up the mortar of the asphalt by an induction device. A short “ heat shot” through the steel fibre causes melting of bituminous binder and because of that, hairline or micro cracks on the pavement surface are close or healed. The asphalt mixture will reset and start a new life. This technique also can be used as additional way of storm water management. The past few studies suggestsed that, porous asphalt pavement intended to be used for parking lots, storm water management, peak flow reduction & noise reduction. Study includes sample making of various proportion of asphalt, aggregates & steel fibre.