This paper describes the successful use of geosynthetic applications for reinforced soil structure and pavement rehabilitation for two projects in Philippines. The first project involved the use of geosynthetic reinforcement consisting of a composite continuous fiber nonwoven geotextile reinforced with high strength polyester yarns for the construction of an 18m high slope. The nonwoven component provides in-plane drainage capacity while the high tenacity polyester yarn provides tensile strength. The second project involved the successful use of reinforced glass paving fabric for Subic International Airport runway rehabilitation works. The paving fabric consists of a continuous filament nonwoven needle punched polypropylene geotextile reinforced with high strength glass fiber. It can extend the design life service of the new asphalt overlay more than twice compared to the conventional overlays method without paving fabrics. The installation procedure, bitumen selection, spray rate and testing of the adhesion between the new asphalt overlay - paving fabric - old asphalt concrete overlay for the successful application of the paving fabric are also highlighted in this paper. (a) For the covering entry of this conference, please see ITRD abstract no. E214938.
Abstract