This paper includes a brief definition of durability and an outline of the influence that source rock mineralogy, production processes and in-service conditions have on the in-service durability of aggregates. Recent work on the internal texture of compacted crushed rock is briefly mentioned - this shows that the internal texture of the fine particles in road base changes as a result of trafficking under test track conditions, and these changes are compared to changes observed in material taken from road failures. Test methods used to assess aggregate durability are mentioned and the significance of tests regarding durability are discussed. Conclusions indicate that aggregates should be classified primarily on the characteristics of the source rock and secondarily on the particle size distribution and other characteristics required for the proposed usage; that the mechanisms of rock deterioration in roads are not well understood and that the relevance of many test methods to durability is not obvious (a). (TRRL)

  • Availability:
  • Corporate Authors:

    ARRB Group Ltd.

    Vermont South, Victoria  Australia 
  • Authors:
    • Wylde, L J
  • Publication Date: 1979-9

Media Info

  • Features: Figures; References;
  • Pagination: p. 29-41
  • Serial:
    • Publisher: Thomas Telford Limited
    • ISSN: 0016-8505

Subject/Index Terms

Filing Info

  • Accession Number: 00309855
  • Record Type: Publication
  • Source Agency: ARRB Group Ltd.
  • ISBN: 0 86910 273 7
  • Report/Paper Numbers: ARR 98
  • Files: ITRD, TRIS, ATRI
  • Created Date: Jun 26 1980 12:00AM