Development of Rolling Deflectometer for Pavement Evaluation

Abstract

This paper shows the Rolling Deflectometer, which can measure the deflection along pavement, and evaluate its quality. TDU type Rolling Deflectomater is equipped with the caster rolling on the pavement and hydraulic servomechanism. An accelerometer is attached to the piston of said servomechanism. The displacement of deformation of pavement can measure through this system.