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Geotextiles in Road Rehabilitation and Maintenance – The African Experience

Over the past ten years geotextile based methods of cracksealing, patching and resealing paved roads have increasingly gained acceptance as a cost effective solution to the problem of maintaining and rehabilitating South Africa’s rapidly deteriorating road network. Trial sections, testing and monitoring programmes and actual case studies involving Sealmac are described and discussed. Many important lessons have been learnt from the various installations around Southern Africa to the extent that reliable guidelines are given in the paper to specifier’s and users alike as to the approach to the design and construction of geotextile/bitumen systems in road surface maintenance and rehabilitation.