THE RESPONSE OF FLEXIBLE PORTLAND CEMENT CONCRETE PAVEMENTS UNDER ULTRA HEAVY LOADING

The performance of concrete slabs and traditional interlocking paving has been variable in container terminals. This problem lead to the quest for alternative solutions for ultraheavy loading. In South Africa Portland cement concrete filled geocells, termed Hyson-Cells, have been used successfully in the provision of low volume roads and streets. An experiment at the Kaserne container terminal, consisting of 11 test panels was designed and constructed to obtain design input information of geocell pavements under ultraheavy loading conditions. The aim of the paper is to present the response and performance of the test panels under loading of up to 100 ton axle loads. The main conclusions were that there was no indication of stress sensitivity of the unbound materials, and typical stiffness values used in road pavement design could be used. Limiting vertical compressive strains were as suggested by the South African Mechanistic Design Method for road pavements. The structural design of geocell pavements for ultraheavy loading may be performed using linear elastic layer analysis. Cost effective solutions include the use of dump rock in the upper pavement to ensure load spreading and stress reduction in the subgrade. (A)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/03799824
• Corporate Authors:

  Concrete Society of Southern Africa

  Portland Park, P.O. Box 168
  Halfway House,   South Africa 
• Authors:
  • Visser, A T
• Publication Date: 1999-7

Language

• English

Media Info

• Features: References;
• Pagination: p. 11-8
• Serial:
  • CONCRETE BETON
  • Issue Number: 94
  • Publisher: Concrete Society of Southern Africa
  • ISSN: 0379-9824

Subject/Index Terms

• TRT Terms: Bearing capacity; Concrete; Pavements; Slabs
• ITRD Terms: 3085: Bearing capacity; 4755: Concrete; 2955: Pavement; 3491: Slab
• Subject Areas: Highways; Pavements;

Filing Info

• Accession Number: 00779489
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD
• Created Date: Dec 7 1999 12:00AM