BONDING BETWEEN BITUMINOUS LAYERS

This computer slide presentation gives details of a study on the back-analysis of the bond between pavement layers from falling weight deflectometer (FWD) data. Reasons for bond between pavement layers are outlined. Lack of bond between layers produces higher deflections under surface loading, since the layers will act independently in the absence of shear continuity at the interfaces. A case study using FWD readings from a 3-year-old flexible pavement indicated that although the surface was in good condition, substantial sections had a low residual life and strengthening was required. The possible reasons for low pavement life are discussed. A further case study from an airport is described. Further research into the development of bonding is considered desirable, in order to define acceptable bond levels for a given temperature, pavement type and traffic ranges.

• Corporate Authors:

  TRL

  Crowthorne House, Nine Mile Ride
  Wokingham, Berkshire  United Kingdom  RG40 3GA
• Authors:
  • HAKIM, B
• Publication Date: 2002

Language

• English

Media Info

• Pagination: 10 p.
• Serial:
  • IMPULSIVE MATTERS - FWD APPLICATIONS AND INTERPRETATION - PROCEEDINGS OF AN INDUSTRY WORKSHOP HELD AT TRL, BERKSHIRE, NOVEMBER 2002
  • Publisher: TRL

Subject/Index Terms

• TRT Terms: Adhesion; Condition surveys; Conferences; Durability; Falling weight deflectometers; Forecasting; Pavements; Test procedures
• Uncontrolled Terms: Bond (Adhesion)
• ITRD Terms: 5942: Adhesion; 3857: Condition survey; 8525: Conference; 6187: Deflectograph; 5910: Durability; 132: Forecast; 2955: Pavement; 6288: Test method
• Subject Areas: Highways; Pavements;

Filing Info

• Accession Number: 00988443
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD
• Created Date: Apr 4 2005 12:00AM