Abstract
An experimental rehabilitation project was conducted on the Transcanadian highway where old concrete pavement was recovered with a thin, steel fiber reinforced concrete overlay. In this project, 18 different construction conditions were investigated. The surface of the old pavement was either sandblasted or scarified. Three different types of steel fibers were used, and all the overlay was bonded with a thin cement grout. In addition, two lanes were repaired with some mechanical bonding provided by 37.5-mm (1.5-in.) steel nails. The most significant results obtained during the construction period as well as all data recorded over the succeeding two winters are reported and analysed in this paper.