Abstract:
Recently flexible pavements are evaluated by Falling Weight Deflectometer (FWD)
instead of Benkelbeam method because of several advantages. Now pavement
temperature is one of the most important parameters that influence the Falling Weight
Deflectometer (FWD) measurements. Since there is a huge temperature variation in
Vadodara City, Gujarat, India, it is necessary to study the temperature effect on the
FWD measurements. In this paper, temperature correction factor is modified based on
the field results. Five different sites are selected. The readings are taken at temperature
35° C and 45° C. Some other tests like road condition survey and test pit methods are
used to know the thickness of the pavement. The field results are compared with the
calculated values of the elastic moduli. Comparisons show that surface and base layer
are mostly affected by the temperature variation but the sub grade layer is not much
affected.