INVESTIGATING THE PREMATURE FAILURE IN NEWLY OVERLAID ROADS

This paper describes an investigation into slippage failure in recently overlaid pavements in Northern Ireland. The investigation included field deflection measurements, laboratory testing, and theoretical modelling of the slipped sections. A number of sound and failed "debonded" cores were extracted from these slipped road layers for visual examination and laboratory stiffness measurement. A full-scale rehabilitation trial section was carried out on the slipped road by tack coating the surface layer before applying a well-compacted overlay. The behaviour of the trial section was studied by measuring their deflections using both the Deflectograph and the Falling Weight Deflectometer.

• Corporate Authors:

  Minnesota Department of Transportation

  Transportation Building, 395 John Ireland Boulevard
  St Paul, MN  United States  55155
• Authors:
  • Sha'at, A A
• Conference:
  • 4th International Conference, Bearing Capacity of Roads and Airfields
  • Location: Minneapolis, MN
  • Date: 1994-8-17 to 1994-8-21
• Publication Date: 1994

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 619-634
• Serial:
  • Volume: 1

Subject/Index Terms

• TRT Terms: Cracking; Debonding; Deflection; Deflectographs; Failure; Falling weight deflectometers; Laboratory tests; Measurement; Overlays (Pavements); Roads; Stiffness; Studies; Surfaces; Tack coats; Theoretical studies
• Geographic Terms: Northern Ireland
• Old TRIS Terms: Investigations; Theoretical modelling
• Subject Areas: Design; Highways; Pavements; I22: Design of Pavements, Railways and Guideways;

Filing Info

• Accession Number: 00730079
• Record Type: Publication
• Files: TRIS, STATEDOT
• Created Date: Nov 27 1997 12:00AM