Evaluation and Overlay Design of Airport Pavementsby W. K. F. Chan, SWK Pavement Engineering, Nottingham, United Kingdom,
G. M. Rowe, SWK Pavement Engineering, Nottingham, United Kingdom,
R. J. Armitage, SWK Pavement Engineering, Nottingham, United Kingdom,
Abstract: Heavy weight deflectometer (HWD), a heavier version of the falling weight deflectometer, enables detailed evaluation of airport pavements to be performed using a rapid a non-destructive test method. The HWD survey results can be integrated in an analytical or a chart based reverse design method to determine the current Pavement Classification Number (PCN), residual life and strengthening requirement. The use of HWD was illustrated by a case study at Kosice Airport in Slovakia where pavements range from rigid to rigid composite to flexible. The rehabilitation solution consists of various thicknesses of asphaltic overlay for different areas of the airport. A modified binder was successful in reducing the potential of reflective cracking in conjunction with a performance based specification.
Subject Headings: Airport and airfield pavements | Pavement overlays | Pavement design | Pavement deflection | Asphalt pavements | Cracking | Case studies | Slovakia | Europe
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