PERFORMANCE OF 26 AND 20 YEARS OLD PRESTRESSED CONCRETE PAVEMENTS AT ALGIERS HOUARI BOUMEDIENE AIRPORT

Prestress concrete runways and taxiway were built in Algiers Airport in 1954 and 1960. They were prestressed longitudinally by hydraulic flat jacks and transversally by tendons; sliding abutments exist at each end. The first year's measurement findings are described as follows: a joint and end displacements, climatic conditions, friction coefficient, and stresses in the slab. After 26 years, the primary runway with often more than 50,000 movements per year (equivalent to a total traffic of 12,000 B 747), had some transverse cracks and three very localized failures due to poor concrete batches; during 20 years of life the secondary runway presented a settlement due to peat, deposits, and an upheaval of joints. Detailed non destructive pavement testing results, theoretical study of the residual life (by American and French methods), and the existence of tested rehabilitation procedures, lead to the following life expectancies under the forecast of very heavy traffic: A few months for the secondary runway because of its low transverse prestress design value (therefore a thick overlay is foreseen); and Roughly ten years for the primary runway (only a thin overlay is foreseen in 1985). Based on this experience, general and particular conclusions are proposed on prestress concrete airport pavements. (Author)

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 265-275

Subject/Index Terms

Filing Info

  • Accession Number: 00334259
  • Record Type: Publication
  • Report/Paper Numbers: Proceeding
  • Files: TRIS, USDOT
  • Created Date: Sep 16 1981 12:00AM