SEASONAL VARIATION IN JOINT EFFICIENCY OF DOWELLED CONCRETE PAVEMENTS . THIRD INTERNATIONAL CONFERENCE ON BEARING CAPACITY OF ROADS AND AIRFIELDS. PROCEEDINGS, NORWEGIAN INSTITUTE OF TECHNOLOGY, TRONDHEIM, NORWAY, JULY 3-5 1990. VOLUMES 1-2

This paper presents the results of some falling weight deflectometer (FWD) measurements of significant variations in joint efficiency of dowelled joints at Memphic and Atlanta International Airports, USA. The FWD has several transducers on it, allowing the measurement of pavement surface deflection. Based on the results of the tests, the following conclusions are reached: (1) dowelled joints are not always as effective as expected, and their efficiency can decrease significantly during periods of cold weather when the joints open and aggregate interlock is reduced; (2) the lack of efficiency of the dowels may be use to looseness as a result of repetitive loads or due to lack of consolidation of the concrete around the dowels during construction; (3) the efficiency of tied keyed longitudinal joints does not appear to be affected by temperature as much as dowelled joints, because the tie bars should hold the slabs closer together, but cracking of the keyways can create other problems making them undesirable; (4) the efficiency of dowelled joints should be considered carefully in the structural design and evaluation of concrete pavements, and close attention should be paid to construction to ensure proper consolidation. (TRRL)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/8251910331
• Corporate Authors:

  Tapir

  Trondheim University, Gloeshaugen
  Trondheim-NTH,   Norway 
• Authors:
  • Greer, W C
• Publication Date: 1990

Language

• English

Media Info

• Pagination: p. 64-74
• Serial:
  • Publication of: Tapir Publishers
  • Publisher: Tapir

Subject/Index Terms

• TRT Terms: Bearing capacity; Concrete pavements; Conferences; Deflection; Dowels (Fasteners); Falling weight deflectometers; Joints; Measures of effectiveness; Pavements; Seasons
• Uncontrolled Terms: Effectiveness; Seasonal variations
• Old TRIS Terms: Joint; Pavement deflection
• Subject Areas: Highways; Pavements;

Filing Info

• Accession Number: 00612246
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• ISBN: 82-519-1033-1
• Files: ITRD, TRIS
• Created Date: Aug 31 1991 12:00AM