Bituminous Concrete Mixes

Every year more than 30 million tonnes of bituminous mixtures are laid in the UK in the course of maintenance and improvements of the road network. However, much of the technology associated with road construction and maintenance has never been published - until now. Bituminous mixtures in road construction has been published as the definitive guide to blacktop and addresses the theoretical and practical aspects of the design, manufacture and laying of bituminous mixtures. Written by a team of leading experts, the book provides up-to-the-minute thinking in materials specification, test methods and harmonisation of standards and covers all aspects of fully flexible road construction from foundation design through to surface treatment. In one handy volume, Bituminous mixtures in road construction presents the best of British expertise and will prove to be an essential guide for all engineers working on the construction and maintenance of highways.

This synthesis will be of interest to pavement designers, construction engineers, and others interested in economical methods for reconstructing or rehabilitating bituminous pavements. Information is provided on the processes and procedures used by a number of states to recycle asphalt pavements in place without application of heat. Since 1975 a growing number of state highway agencies have reconstructed or rehabilitated asphalt pavements by recycling the old pavement in place. This report of the Transportation Research Board describes the processes used for cold in-place recycling, including construction procedures, mix designs, mixture properties, performance, and specifications.

The aim of the studies presented in this report is the implementation of rational concepts and testing procedures for the design and manufacture of bituminous materials for applications in pavement construction. Practical test procedures are recommended for binder evaluation, mix design and performance assessment of bituminous materials. The three main topics addressed are binder testing, mix design and mechanical testing of mixtures. Each is examined through interlaboratory tests and there is a literary review of existing practices and methods for the production of polymer modified binders, mixture design and the mechanical properties of mixtures.