FLEXIBLE PORTLAND CEMENT CONCRETE PAVEMENT FOR LOW-VOLUME ROADS

One of the challenges of South African civil engineers is to develop techniques for infrastructure provision appropriate to local conditions and suitable for creating employment. Local technology, consisting of welded plastic cells known as Hyson-Cells, is identified as a potential solution. After tensioning the cells, coarse aggregate is placed and compacted, after which a sand-cement grout is vibrated into the voids in the coarse aggregate. Alternatively, ready-mixed concrete can be used. The design catalogue for geocell pavements for low-volume roads is presented, and the suitability of the catalogue is demonstrated by evaluating streets that had been in service for more than 5 years. The catalogue of pavement structures was developed from the results of a laboratory study and field trials. An evaluation of eight road projects that had been in service for more than 5 years supported the structural design but also showed that construction control was important to ensure good performance. An economic analysis demonstrated that it was competitive with other pavement types normally used on access streets.

Language

  • English

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 121-127
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00763298
  • Record Type: Publication
  • ISBN: 0309065240
  • Files: TRIS, TRB, ATRI
  • Created Date: May 26 1999 12:00AM