Optimum use of granular bases: material selection for detailed performance evaluation

The objective of this report is to provide data relating the laboratory repeated load triaxial test (RLT) results to field performance and to develop procedures for incorporation of RLT test results into performance-based specifications and mechanistic pavement design for unbound granular materials. Base materials nominated by Austroads member authorities were tested using both current empirical specification tests for material qualities and advanced laboratory test methods for mechanical properties (including resilient modulus, permanent strain and shear strength). It was found that the materials covered a large range of qualities in terms of source rock, grading and fines properties. The use of materials varies with their quality from lightly to heavily trafficked roads and from drier inland areas to wet coastal areas. Results of resilient modulus and permanent strain obtained from RLT testing indicated that the material rankings based on these parameters were not consistent with the classifications based on material qualities. Four materials were recommended for testing using accelerated loading. (a)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/9781921329104
• Corporate Authors:

  Austroads

  Suite 2, Level 9, 287 Elizabeth Street
  Sydney, New South Wales  Australia  2000
• Authors:
  • VUONG, B
  • JAMESON, G
  • CHOUMMANIVONG, L
• Publication Date: 2007-7

Language

• English

Media Info

• Pagination: 105P
• Serial:
  • Issue Number: AP-T85/07

Subject/Index Terms

• TRT Terms: Building materials; Evaluation; Granular materials; Pavement base course; Pavement design; Pavements; Specifications; Test procedures; Tests; Triaxial shear tests
• ITRD Terms: 2990: Basecourse; 9020: Evaluation (assessment); 4107: Granular; 4555: Material (constr); 2955: Pavement; 3055: Pavement design; 177: Specifications; 6255: Test; 6288: Test method; 5566: Triaxial
• Subject Areas: Design; Highways; Materials; Pavements; I22: Design of Pavements, Railways and Guideways; I31: Bituminous Binders and Materials;

Filing Info

• Accession Number: 01081625
• Record Type: Publication
• Source Agency: ARRB
• ISBN: 9781921329104
• Files: ITRD, ATRI
• Created Date: Nov 29 2007 12:51PM