ASPHALT REINFORCEMENTS MADE OF POLYESTER GRIDS IN ROADS AND AIRFIELDS . 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 considers various aspects of reinforcing polyester grids used in asphalt pavements for roads and airports. A reinforcing grid in an asphalt course enhances its tensile strength and distributes the loads placed on it; tests show that the life of the reinforced overlay is significantly prolonged. A reinforcing grid must satisfy several requirements, including: (1) a tensile strength of at least 35 kN/m longitudinally and transversely; (2) a maximum permissible strain at rupture of 15%; (3) a good bond between reinforcement and asphalt; (4) resistance to temperatures of at least 190 degrees Centigrade. Reinforcing polyester grids have been used successfully: (1) for crack repairs; (2) for prevention of reflective and temperature cracking in asphalt layers; (3) over the new sections of widened roads; (4) for protecting service trenches; (5) in expansion and construction joints; (6) in zones subjected to heavy traffic loads. When a reinforced asphalt course is being laid, the reinforcing grid must be flat and free of folds, and the course laid over it must be at least 5 cm thick. Experience from the many projects using reinforcing polyester grids shows that they provide a reliable and long-lasting method of asphalt pavement maintenance. (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:
  • KIRSCHNER, R
  • Kassner, J
• Publication Date: 1990

Language

• English

Media Info

• Features: References;
• Pagination: p. 1159-68
• Serial:
  • Publication of: Tapir Publishers
  • Publisher: Tapir

Subject/Index Terms

• TRT Terms: Airport runways; Asphalt pavements; Bearing capacity; Conferences; Deflection; Grids (Coordinates); Grids (Transmission lines); Pavement cracking; Pavement maintenance; Pavements; Polyester resins; Reinforcement (Engineering); Repairing
• Uncontrolled Terms: Repairs
• Old TRIS Terms: Pavement deflection
• Subject Areas: Highways; Pavements;

Filing Info

• Accession Number: 00612342
• 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