This paper discusses a draft new specification for aggregates that has been prepared by the South African Bureau of Standards (SABS) to supersede two existing standards (SABS 647 and SABS 718) for single-sized stone for roads and aggregate for concrete, respectively. Entitled "Aggregates from Natural Sources" it covers (A) fine and coarse aggregate for concrete, (B) five aggregate for bituminous mixtures, (C) five aggregate for slurry seals, (D) single-sized coarse aggregate for road construction and (E) aggregate for base-course material. The author gives an outline of the scope and content of the draft specification in which tables have been used as much as possible to show the requirements for different purposes. He considers that the unification of the grading and flakiness requirements of coarse aggregate for concrete and road construction will ease production problems. The main document is to give details of the tests required by the specification itself; other tests are to form appendices. Reference is made by the author to the production of aggregates under the sabs mark scheme which is made possible by the comprehensive testing facilities of the bureau. The mark indicates that the bureau is satisfied that an aggregate complies with the relevant specification and that adequate quality control is exercised in its production.

  • Corporate Authors:

    Quarry Managers Journal Limited

    62-64 Baker Street
    London W1M 2BN,   England 
  • Authors:
    • Bennie, I M
  • Publication Date: 1973-10

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00080716
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS
  • Created Date: Mar 26 1975 12:00AM