Institut Français des Sciences et Technologies des Transports, de l'Aménagement et des Réseaux

Type de document

COMMUNICATION AVEC ACTES INTERNATIONAL (ACTI)

Langue

anglais

Auteur

HOMSI ; BODIN ; CHABOT ; HORNYCH

Résumé / Abstract

This paper presents data and modelling results of asphalt pavement strain responses for different pavement temperature conditions. The tensile strains developed at the bottom of the structural layers in a thick asphalt pavement are critical to the thickness design. Measured strain data have been collected during a pavement response to load experiment undertaken using the IFSTTAR's accelerated pavement testing (APT) facility. The effect of the pavement temperature on the tensile strains at the bottom of the asphalt layers is derived from the data in different pavements structures, at different speeds and for different wheel configurations in both the longitudinal and transverse directions. A thermo-viscoelastic pavement response to load model has also been used to evaluate strains. When comparing measured strains with calculated strains, the viscoelastic model is found to provide a good agreement with the APT strain signals.

Editeur

Australian Road Research Board - ARRB