THE USE OF FLY ASH, AN INDUSTRIAL BY-PRODUCT, FOR THE CONSTRUCTION OF A HIGHWAY EMBANKMENT

The typical composition range of flyash is given, as well as the standard laboratoy density of the flyash used on the embankment construction project. The design criteria and site conditions are outlined and details are given of the construction. Research in this area is briefly reviewed and conclusions based on experience are set forth. The age hardening characteristic of the material is expected to give a strong, lightweight, stable fill. When the moisture content is controlled within a range of 20-25 percent, the material is workable and stable provided appropriate construction methods are utilized. Excellent compaction and penetrometric results were obtained when the flyash was compacted at a moisture content of 2-5 percent below optimum. Flyash may prove useful in the bridging of weak soils.

• Corporate Authors:

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Bacon, L D
• Publication Date: 1974-7

Media Info

• Features: Figures; Photos; References;
• Pagination: p. 1-14
• Serial:
  • Highway Focus
  • Volume: 6
  • Issue Number: 3

Subject/Index Terms

• TRT Terms: Building materials; Compaction; Design; Embankments; Fills; Fly ash; Industrial areas; Industrial buildings; Moisture content; Road construction; Waste products
• Uncontrolled Terms: Design criteria
• Subject Areas: Construction; Design; Highways; Terminals and Facilities;

Filing Info

• Accession Number: 00081376
• Record Type: Publication
• Files: TRIS, USDOT
• Created Date: Mar 6 1975 12:00AM