Lightweight Aggregates as Frost Insulation in Roads — Design Chart

Frost heave and thawing, resulting in deformations and reduced bearing capacity, cause major maintenance costs of the roads in the Nordic countries. The most common frost protection method in Norway is to increase the layer thickness of crushed rock. In addition has extruded polystyrene (XPS) been used since 1965, but this has gradually been reduced the last 20 years. Light expanded clay aggregate has regularly been used as frost protection for other civil engineering applications such as railways and buildings, and is occasionally also used for pavements. Lately also foam glass aggregate has become an option. To optimize the design, SINTEF has performed a number of numerical analyses and developed design charts that give the required layer thickness of frost insulation. The numerical analyses showed that the frost protection layer using expanded clay or foam glass aggregate should be 4–5 times thicker than a frost protection of extruded polystyrene.

• Record URL:
  • https://doi.org/10.1061/40836(210)63
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/9780784408360
• Supplemental Notes:
  • © 2006 American Society of Civil Engineers.
• Corporate Authors:

  American Society of Civil Engineers

  1801 Alexander Bell Drive
  Reston, VA  United States  20191-4400
• Authors:
  • Øiseth, E
  • Refsdal, G
• Conference:
  • 13th International Conference on Cold Regions Engineering
  • Location: Orono Maine, United States
  • Date: 2006-7-23 to 2006-7-26
• Publication Date: 2006-7

Language

• English

Media Info

• Media Type: Web
• Pagination: pp 1-11
• Monograph Title: Cold Regions Engineering 2006: Current Practices in Cold Regions Engineering

Subject/Index Terms

• TRT Terms: Design charts; Expanded clay aggregates; Frost protection; Insulating materials; Lightweight aggregates; Pavement design
• Geographic Terms: Norway
• Subject Areas: Design; Highways; Materials; Pavements;

Filing Info

• Accession Number: 01882283
• Record Type: Publication
• ISBN: 9780784408360
• Files: TRIS, ASCE
• Created Date: May 18 2023 5:08PM