STRUCTURAL MAINTENANCE OF CEMENT CONCRETE PAVEMENTS ASSESSMENT OF PRESENT IDEAS--RESULTS OF FRENCH EXPERIMENTS

Portland cement concrete pavements in France are of the nonreinforced, nondoweled type and are subject to very heavy traffic. This paper deals with the maintenance of pavements built prior to 1974 and whose structure does not incorporate certain recent design features such as lateral drainage. The pavements concerned can be placed in four categories according to their structural condition (from good to very poor condition). There are three types of structure maintenance corresponding to these different conditions. These are described in the paper along with the specific maintenance techniques applicable to each category. (1) Routine maintenance designed essentially to ensure proper pavement sealing. (2) "Medium" structural maintenance involving such techniques as lateral drainage of slab edge, reconstruction of shoulder edge without drainage, grouting under slabs, improving load transfer at joints (by joint blocking or keying), bituminous overlays (thinner than or equal to 15 cm). (3) Heavy maintenance consisting either of thick bituminous overlays or reconstruction in portland cement concrete of degraded lane only. Only the load transfer improvement techniques are not yet operational. Maintenance techniques to be used are determined on the basis of observed pavement deterioration. The choice may be bituminous overlays which modify the pavement structure, or maintenance for correcting the defects while conserving a cement concrete structure. (Author)

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 421-430

Subject/Index Terms

Filing Info

  • Accession Number: 00334273
  • Record Type: Publication
  • Report/Paper Numbers: Proceeding
  • Files: TRIS, USDOT
  • Created Date: Sep 16 1981 12:00AM