An investigation into moisture sensitivity of unbound roadbase aggregates

This paper reports the findings of an investigation into moisture sensitivity of roadbase materials. Two commonly used roadbase materials from South-East Queensland have been investigated both in the CBR and the repeated load triaxial (RLT) test. It is shown that contrary to the conventional soaked CBR test, when the test is carried out under comparable compaction conditions to the RLT and tested unsoaked, the stiffness characteristic of the CBR load-penetration curve sheds useful insight into the moisture sensitivity of a roadbase material. This moisture sensitivity characteristic is confirmed with the more fundamental RLT test. Thus, this paper has identified the potential of the CBR test to be used in preliminary ranking of roadbase materials with respect to moisture sensitivity. (a) For the covering entry of this conference, please see ITRD abstract no. E216246.

  • Authors:
    • WIJEYAKULASURIYA, V
    • NEARY, A W
    • REYNOLDS, P W
    • OH, E Y
  • Publication Date: 2007-10

Language

  • English

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 01099918
  • Record Type: Publication
  • Source Agency: TRL
  • Files: ITRD, ATRI
  • Created Date: May 27 2008 9:01AM