Asphalt Surfacings

Ever increasing demands are being made on road and airport pavement surfacings and an expanded range of materials is becoming available for their construction. Asphalt Surfacings is a comprehensive guide to asphalt materials used for surfacing road and airfield pavements. By examining the constituent materials, the construction processes and the properties provided by each type of material, an assessment can be made of the material types appropriate to a particular site and application. Background information is provided on the main component mateials (aggregates, fillers, bitumen and binder modifiers) and on the requirements generally specified for the surfacing layer of asphalt pavements. Each material type is then discussed in turn, from the traditional 'thick' surface course materials (such as rolled asphalt and dense bitumen macadam, as well as asphalt concrete and porous asphalt) through the new thin surfacings, to very thin surface treatments such as surface dressing. Various specialist materials are also covered, including mixtures using recycled materials. There is also a summary of each option available to the engineer, which provides a starting point for finding the most appropriate surfacing. This is an essential guide for student materials technologists and engineers, as well as experienced design and construction engineers.