Limestone (calcareous aeolinite) stabilised with bitumen has been used as a pavement material in Western Australia for some time. Traditionally, the bitumen has been added in an emulsified form and mixed in situ by graders. More recently, the mixing has been done off-site in a fixed plant. Variations in the quality of limestone used have led to the addition of varying bitumen contents. However, the selection of the bitumen content appropriate to the field situation has not been based on a rational assessment of the limestone's deficiencies. Because the use of stabilised limestone is likely to increase in coastal areas as naturally occurring deposits of suitable gravel become scarce, an investigation was initiated to rationalise the selection of a bitumen content for stabilising limestones of varying quality. This paper presents the progress made along these lines and an approach which is believed to be equally applicable to other materials which lack adequate cohesion.

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 12-21
  • Serial:
    • Issue Number: N8

Subject/Index Terms

Filing Info

  • Accession Number: 00149470
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Aug 31 1977 12:00AM