LIFE CYCLE COST ANALYSIS OF OVERLAY FOR AN URBAN ROAD IN BANGALORE

Preethi.S, Radhakrishna, Raghavendra Prasad

Abstract: Pavements are subjected to severe condition of stresses and weathering effects from the day they are constructed and opened to traffic mainly due to its fatigue behavior and environmental effects. Therefore, pavement rehabilitation is one of the most important components of entire road systems. This paper highlights the design of concrete pavement with added mono fibers like polypropylene, steel and hybrid fibres for a widened portion of existing concrete pavement and various overlay alternatives for an existing bituminous pavement in an urban road in Bangalore. Along with this, Life cycle cost analyses at these sections are done by Net Present Value (NPV) method to identify the most feasible option. The results show that though the initial cost of construction of concrete overlay is high, over a period of time it prove to be better than the bituminous overlay considering the whole life cycle cost. The economic analysis also indicates that, out of the three fibre options, hybrid reinforced concrete would be economical without compromising the performance of the pavement

Keywords: Fatigue, Life cycle cost analysis, Net Present Value method, Overlay, Rehabilitation

DOI: https://doi.org/10.15623/ijret.2013.0213029