Book Description

Nearly all highway, airport, dock and industrial pavements contain large quantities of untreated aggregate in the form of unbound pavement layers. In many pavements, which are lightly or moderately trafficked, crushed rock or gravel derived aggregates comprise the majority of the construction or, in the case of unsealed pavements, all of the structure. This book provides studies of the performance and description of this material that will help the reader to better understand its characteristics and behaviour both alone and as part of the pavement structure it forms. The contributors address modelling of the material, analysis of pavement behaviour - both theoretically and in practice, measurement of properties in the laboratory and in-situ, design procedures, the influence of the environmental conditions on the material's and pavement's behaviour, accelerated evaluation of performance, specification and the opportunity for reuse of waste materials as an alternative for crushed geologic materials. This work covers all the major areas of interest related to this important yet often overlooked aspect of highway engineering, and will be useful to practitioners, policy makers, researchers and students. It forms a sequel to the earlier book "Unbound Aggregates in Road Construction" also published by Balkema.