Repair of Berth Faces at Port of Montreal with Fiber-Reinforced Shotcrete

Abstract

This paper describes a prototype construction project in which about two thirds of a berth face, 122 m long and 7.1 m high, was repaired with a synthetic fiber reinforced shotcrete and the remaining third with a steel fiber reinforced shotcrete. The synthetic fiber used was a new mono-filament polyolefin fiber, 26 mm long x 0.38 mm diameter added at an addition rate of 1.25% by volume of shotcrete. The deformed steel fiber, 38 mm long, was added at an addition rate of 0.75% by volume of the shotcrete. The shotcrete used was air entrained, silica fume modified, supplied by transit mixers from a central mix plant and applied by the wet mix shotcrete process. The remedial design, shotcrete mixture designs, preconstruction mock up production and quality control testing are described as well, and a summary of construction quality control test results is provided.