PERFORMANCE EVALUATION ON THIN-WHITETOPPING

B.N. Skanda kumar, Suhas R, Bhavan V

Abstract: Whitetopping is a pavement system of Portland Cement Concrete (PCC) placed on asphalt concrete pavement. Whitetopping is used to address distresses in asphalt pavement such as rutting and shoving. Whitetopping overlay projects are built in India from 2003 to 2013 but to date, there has been no specific follow-up regarding their performance. In this study, Performance Evaluation studies are conducted to determine functional and structural condition of a whitetopping overlay which has the purpose of routine monitoring or planning the corrective action. Where in structural evaluation is done by conducting Benkelman Beam Deflection (BBD) studies, Taking out core samples and subjecting them UPV and Rebound hammer tests and also developing a theoretical model through Finite Element Analysis using STAAD Pro software. The functional evaluation of this pavement is done by collecting traffic data and also riding quality is measured using MERLIN and Visual Rating is given as suggested by American Association of State Highway and Transport Officials (AASHTO).

Keywords: THIN-WHITETOPPING

DOI: https://doi.org/10.15623/ijret.2014.0307068