DURABILITY TESTING OF ROADMAKING MATERIALS

Assessment of the soundness and durability of the materials used in road construction is required to gauge the likely performance of a road structure in service. A number of laboratory tests have been devised by various authorities over many years to achieve this purpose. Several of these tests are often used together by the same authority to assess durability. However, as each of these tests is different, it is not always clear which material property is measured or how precisely the tests are related. Difficulties then arise in determining which tests to use for a particular requirement and in setting compatible specification limits. The data available from tests of this type performed over the 1974-76 period at the Main Roads Department (MRD) GLD Herston Laboratory have been collated and examined to establish any relationships between commonly used tests. The relative merit of the alternative tests as a useful indicator of durability is indicated in terms of equipment and testing costs. The range of test values obtained for local materials are discussed in terms of limiting specification values suggested in NAASRA "Pavement Materials. Part 3-Crushed Rock". The difficulties which arise when attempting to translate specific test values into observed field performance are outlined (a). (TRRL)

Media Info

  • Features: Figures; Tables;
  • Pagination: p. 43-56

Subject/Index Terms

Filing Info

  • Accession Number: 00309856
  • Record Type: Publication
  • Source Agency: ARRB Group Limited
  • ISBN: 0 86910 273 7
  • Files: ITRD, TRIS, ATRI
  • Created Date: Jun 26 1980 12:00AM