ABSTRACT
ABSTRACT: This paper describes the rehabilitation procedure of an old cracked asphalt pavement located on the E6 motorway in the west of Sweden. A trial was performed to design the road structure with steel fabric reinforcement in the asphalt concrete. Three fullscale 100-meter test sections were built. Two test sections were reinforced with steel fabrics and one section was left without reinforcement as a reference road section. These sections were instrumented with strain gauges. The sections were tested by means of deflection measurements with Falling Weight Deflectometer, strain measurements at the bottom surface of the overlays, strain on the steel bars, unevenness and rut depth measurements, and manual distress surveys. The objective is to evaluate the performance of rehabilitated road structures reinforced with steel fabric. Strain measurements at the bottom surface of the asphalt layers show lower strains in the reinforced test sections than in the reference section without reinforcement. Performance evaluation and conclusions after seven years of traffic are presented in this paper.
