Effects of temperature change on pavement performance evaluation using FWD

Abstract

The thesis aims to study the effect of temperature on pavement deflections ) especially when changing temperature( by using a falling weight deflectometer (FWD) and its results. The temperatures were obtained by two methods 1) a special temperature acquisition system designed for this thesis (Arduino thermometer) and 2) by the thermometers attached as a part of FWD device. Data from both devices were studied. Several correlations between temperature and different layers of pavement structure, (i.e., air temperature, surface pavement temperature, and mid-depth asphalt pavement temperature) were studied. Also, the survey analyzed the temperature's behaviors on pavements layers up to depth 430 mm under the surface.