REHABILITATION OF AIRCRAFT PAVEMENTS

This article is the long summary of a paper, which the authors delivered at a recent conference, which presents the concept of precast interlocking concrete blocks as a rehabilitative overlay on ageing concrete pavements. It drew on experiences gained from a small trial section, constructed at Melbourne Airport, Australia, in 1992, to alleviate reflection cracking. This trial was an innovative use of concrete blocks on aircraft pavements, and emphasised some problem areas associated with block crack bedding sand support and underlying slab joint movement. Pavement models were analysed to assess the structural benefits of the concrete block overlay, using the Portland Cement Association computer program for designing rigid airport pavements and the elastic layer program CIRCLY; the results are shown in two tables. The analysis indicates several advantages from the overlay, including: (1) the potential for shape correction; (2) elimination of cracking and spalling; and (3) the possibility of reduced construction time. In view of the earlier experience, the following aspects of the use of interlocking concrete blocks as overlays should be considered: (1) the use of bedding sands; (2) structural support assessment; (3) appropriate design methodology and block moduli; and (4) full-scale field evaluation.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/05490219
• Corporate Authors:

  CEMENT & CONCRETE ASSOCIATION OF NEW ZEALAND

  13 WALL PLACE
  PORIRUA,   New Zealand 
• Authors:
  • MONTEITH, R
  • Campbell, C
• Publication Date: 1993

Language

• English

Media Info

• Pagination: p. 38-9
• Serial:
  • NEW ZEALAND CONCRETE CONSTRUCTION
  • Publisher: CEMENT & CONCRETE ASSOCIATION OF NEW ZEALAND
  • ISSN: 0549-0219

Subject/Index Terms

• TRT Terms: Aging (Materials); Airports; Computer programs; Conferences; Cracking; Evaluation and assessment; Field tests; Mathematical analysis; Mathematical models; Pavement design; Pavements; Paving stones; Precast concrete; Sand; Spalling; Strength of materials; Strengthening (Maintenance); Surfacing
• Geographic Terms: Australia
• ITRD Terms: 5292: Ageing; 6471: Analysis (math); 8006: Australia; 8525: Conference; 5211: Cracking; 9020: Evaluation (assessment); 6226: In situ; 6473: Mathematical model; 2955: Pavement; 3055: Pavement design; 4792: Precast concrete; 4105: Sand; 4508: Sett (stone); 8645: Software; 5231: Spalling; 3096: Strengthening (pavement); 2972: Surfacing
• Subject Areas: Aviation; Highways; Pavements; Terminals and Facilities;

Filing Info

• Accession Number: 00725450
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD
• Created Date: Sep 26 1996 12:00AM