Slag bound mixtures with recycled aggregates for flexible pavements

This paper describes a laboratory study on the behaviour and mechanical properties of slag bound mixtures, including usage of recycled aggregates, with a view to assessing their adequacy to serve as base layers in flexible pavement construction.The study addresses the influence of a number of material variables, e.g mixture composition, moisture content and moisture ingress, on the indirect tensile strength properties.The paper then considers the changes to the materials's structural support properties, at the early stages, that occur at different curing durations and briefly asseses the impact of these changes on pavement design.The cyclic triaxial test was conducted to evaluate the resillient modulus, which was used to portray the material's structural support.An attempt was made to depict the non-linear behaviour of slag bound mixtures by expressing their stress dependency characteristics in terms of experimental models, mainly used to describe the behaviour of unbound granular materials.For the covering abstract of this conference see ITRD E132435.

• Authors:
  • KHALID, H A
  • SOO, Z L
  • NQUOT, I S
  • Artamendi, I
• Publication Date: 2006

Language

• English

Media Info

• Pagination: 1415-1422
• Serial:
  • PROCEEDINGS OF THE 5TH ICEG - ENVIRONMENTAL GEOTECHNICS - OPPORTUNITIES, CHALLENGES AND RESPONSIBILITIES FOR ENVIRONMENTAL GEOTECHNICS, HELD CARDIFF JUNE 2006, VOLS 1AND 2

Subject/Index Terms

• TRT Terms: Behavior; Building materials; Conferences; Flexible pavements; Laboratories; Methodology; Mix design; Mixtures; Pavement design; Properties of materials; Recycling; Slag; Tests; Triaxial shear tests
• Subject Areas: Design; Geotechnology; Highways; Materials; Pavements; I22: Design of Pavements, Railways and Guideways; I35: Miscellaneous Materials; I36: Aggregates;

Filing Info

• Accession Number: 01045863
• Record Type: Publication
• Source Agency: TRL
• Files: ITRD
• Created Date: Apr 5 2007 12:31PM