ABSTRACT
For newly constructed or reconstructed road the initial rutting rate is high and some models would accommodate this predicament. In order to follow-up a model suggested, surface characteristics measurements and falling weight deflectometer testing were used extensively on a couple of reconstructed road sections. Two similar construction types differed regarding the stress–strain relationship on top of the subgrade. They also differed as the initial rutting rate was higher for one of the sections. Several years after construction the rutting rate was the same and the total rut depth differed as much as it had after six months in service for the two sections. Thus, criteria on stress or backcalculated E-modulus from falling weight deflectometer tests can be used for construction quality control.
