USE OF LIGHTWEIGHT SAWMILL RESIDUE IN HIGHWAY EMBANKMENTS

A new use for sawmill residue as a lightweight fill for road construction is described. Shrouding of this residue in polyethylene sheeting prevented thermogenesis and subsequent physical deterioration of the fill. High levels of carbon dioxide and methane indicated anaerobic conditions within the fill. Strength, compression, and density information was generated from the sawmill residue prior to road construction. Following several years of successful service, the use of shrouded sawmill residue is suggested as a cheap lightweight substitute for conventional gravels. The use of such shrouding will also minimize the risk of extractives being leached by rainwater from the sawmill residue and polluting adjacent water systems. (TRRL)

• Corporate Authors:

  Transportation Association of Canada (TAC)

  401-1111 Prince of Wales Drive
  Ottawa, Ontario  Canada 
• Authors:
  • Smith, R S
  • Coulter, T S
• Publication Date: 1980

Media Info

• Features: Figures; Photos; References;
• Pagination: p. 84-89
• Serial:
  • RTAC FORUM
  • Volume: 3
  • Issue Number: 1

Subject/Index Terms

• TRT Terms: Carbon dioxide; Compression; Costs; Density; Deterioration; Embankments; Ethylene resins; Fills; Landfills; Leaching; Lightweight materials; Methane; Polyvinyl hydrocarbons; Prevention; Road construction; Sawdust; Sheathing; Strength of materials; Waste products (Materials); Water pollution; Wood
• Uncontrolled Terms: Fill (Embankment); Polyethylene
• ITRD Terms: 4563: By product; 7393: Carbon dioxide; 224: Cost; 5255: Deterioration; 2801: Embankment; 9038: Lightweight; 7422: Polyvinylhydrocarbon; 9149: Prevention; 3665: Road construction; 4506: Wood (mater)
• Subject Areas: Finance; Geotechnology; Highways; Materials; Security and Emergencies; I35: Miscellaneous Materials;

Filing Info

• Accession Number: 00345800
• Record Type: Publication
• Source Agency: Transportation Association of Canada (TAC)
• Files: ITRD, TRIS
• Created Date: Feb 27 1982 12:00AM