NATAL GOES "CALIFORNIAN", CONCRETE PAVEMENT IN NATAL IS DESIGNED TO CALIFORNIA STANDARD

The original plan for the construction of the 28 km Estcourt to Frere concrete Freeway in Natal, was to build the embankments on the original ground level after treating the sub-grade with an impact roller. The soft material in the cuttings was found unsuitable and so had to be removed to expose the hard sandstone and dolerite formations. This highway, the first concrete main road in natal, was designed on the basis of the California standard. The highway was constructed as a 210 mm unreinforced pavement continuously cast with transverse construction joints sawn to approximately quarter depth to introduce planes of weakness. The skewed transverse joints were not sealed but sub-surface drains were constructed to take away water from the construction joints and shoulder joint. Details are given of overall pavement construction techniques used. (TRRL)

  • Corporate Authors:

    Pithead Press Proprietary Limited

    4th Floor, Wynrop House, 91 Mooi Street
    Johannesburg,   South Africa 
  • Publication Date: 1980-1

Media Info

  • Features: Figures; Photos; Tables;
  • Pagination: p. 30
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00316923
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD, TRIS
  • Created Date: Oct 27 1980 12:00AM