Abstract
Toward establishing a theoretical design method for asphalt pavements in cold, snowy regions, field surveys were performed on an asphalt pavement constructed using the multilayer elastic theory at a national highway in service. Through vehicle loading and FWD tests, and from dynamic loading applied to the pavement, the relation between measured strain and estimated strain was studied. It was found that the measured strain from FWD tests closely corresponds to the estimated strain, but that the measured strain from the vehicle loading test tends to be smaller than the estimated strain. Reason for the difference between measured strain and estimated strain was the effect of loading repetitions. Methods for correcting the modulus of elasticity are examined.
