A quite considerable part of the Hungarian road infrastructure is in critical condition due to the steady traffic growth of heavy good vehicles and increasing frequency of extreme weather conditions. The author analyzed the most typical deterioration problems of asphalt pavements, their possible causes and the reasons of shortened service life of these pavements. The impacts of construction compact-asphalt technology' modifications on the asphalt pavements were studied. Based on laboratory analysis of appropriate specimens, as a result of these technology modifications, changing characteristics of the asphalt pavement were revealed and more reliable data were provided for lifecycle costing and maintenance parameters used as input in the economic analysis. © 2009 Akadémiai Kiadó.