The materials selected for this comparative study are described as continuously graded aggregates whereby a quantity of every size of stone from the largest to the smallest is present, and skip gradings consisting of a combination of several single sizes with certain particular sizes omitted. The dolerite aggregate selected for study is described as angular, non-absorbent and with a specific gravity of 2.68, crushing value of 15.0, impact value of 15.0 and Los Angeles abrasion value of 14.9. The filler had a specific gravity of 2.70, and an 80-100 pen grade of asphalt was used as the binder. The characteristics of the materials are presented and the test procedure adopted to prepare the Marshall specimens is described. Test results obtained for Marshall stability, flow, voids in the mineral aggregate, air voids and density values are analysed, and the relationships explained in a series of graphs. It was concluded that skip graded mixtures are capable of satisfying all the Marshall design criteria. (TRRL)

  • Availability:
  • Corporate Authors:

    Indian Roads Congress

    Jamnagar House, Shahjahan Road
    New Delhi,   India  110 011
  • Authors:
    • Sahu, C S
    • RAO, S K
  • Publication Date: 1978-9

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 20-30
  • Serial:
    • Indian Highways
    • Volume: 6
    • Issue Number: 9
    • Publisher: Indian Roads Congress
    • ISSN: 0376-7256

Subject/Index Terms

Filing Info

  • Accession Number: 00310078
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD, TRIS
  • Created Date: Jul 22 1980 12:00AM