Pavement

Cover of Guide to Pavement Technology Part 4D: Stabilised Materials
Guide to Pavement Technology Part 4D: Stabilised Materials
  • Publication no: AGPT04D-06
  • ISBN: 1 921139 38 2
  • Published: 30 May 2006
  • Edition: 1.1
  • Superseded

Part 4D of the Guide to Pavement Technology replaces, in part, the 1988 Austroads Guide to Stabilisation in Roadworks.  It reflects the significant technical research that has been undertaken nationally and internationally in improving stabilisation technology since that time. In particular this part of the Guide to Pavement Technology discusses the types of stabilised pavement materials (including subgrades), the binders associated with various types of stabilised pavement materials, methodologies for the determination of the appropriate mix proportions in the manufacture of stabilised pavement materials, and specification considerations for manufacture and supply of stabilised materials.

In May 2013 Austroads published two technical reports recommending updates to Guide to Pavement Technology Part 4D: Stabilised Materials.

  • AP-R434-13 Review of Definition of Modified Granular Materials and Bound Materials   recommends changes to the Unconfined Compressive Strength (UCS) design criteria that differentiates modified granular materials from bound materials.   
  • AP-R435-13 Proposed Procedures for the Design of Pavements on Selected Subgrade and Lime Stabilised Subgrade Materials recommends revising the mix design methods to align with current practice).

It is anticipated that these draft procedures will be used by practitioners and revised as necessary for inclusion in the next edition of the Guide.