Asphalt mixture is a highly flexible material in road structures. Depending on the layer used: the base layer or wearing course, it must respond to loads coming from the traffic and climate. Asphalt mixture on the wearing course must take tangential forces produced by vehicle's wheels and to transmit vertical loads to the bottom layers, to support loads from climate factors, to provide sufficient rigidity so as to contribute to road structure resistance increase, to be waterproof and with enough roughness, to drain runoff. Because of traffic increment and climate changes, degradations like permanent deformations, fatigue cracking and low temperature cracking appear on flexible asphalt pavements. These degradations reduce road structures life time and increase maintenance costs. The present paper aims to highlight the laboratory measurements of one of the asphalt mixture characteristics, namely the dynamic creep test studying the influence of loading conditions on the values obtained. The results obtained from calculus are presented as influence graphs.

asphalt mixture, permanent deformations, dynamic creep, creep modulus, creep rate