NEW TECHNIQUES FOR STABILIZING HIGHWAY EMBANKMENTS

Two techniques are described for use in stabilising highway embankments: a) air-foamed soil cement and b) fibre-mixed soil. Air- foamed soil cement is generally made by the foaming method which involves blowing a bubble fluid and compressed air into a cement slurry. On-site and factory mixing methods are outlined. Quality control, pressure feeding distance and bubbling agents are discussed. The use of the technique during the widening of the Tokyo-Chiba highway and in embankment construction in a landslide area are described. Fibre-mixed soil is generally made by incorporating 3cm long polyester fibres into soil. A graph shows the relationship between the quantity of fibre used and the unconfined compressive strength of the soil. An experiment is described which compared the erosion resistance of a variety of soils containing net fragments, varying proportions of short polyester fibres, water absorbent fibres and soil with no additives.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/31984593
• Corporate Authors:

  Permanent International Assoc of Road Congresses

  27 rue Guenegaud
  Paris,   France 
• Authors:
  • Miki, H
• Publication Date: 1993

Language

• Undetermined

Media Info

• Features: References;
• Pagination: p. 64-72
• Serial:
  • Routes/Roads
  • Issue Number: 281
  • Publisher: World Road Association (PIARC)
  • ISSN: 0004-556X
  • Serial URL: http://www.piarc.org/en/publications/Routes-Roads-Magazine/

Subject/Index Terms

• TRT Terms: Air entrained concrete; Cement; Control; Embankments; Erosion; Fibers; Improvements; Material reinforcement; Mechanically stabilized earth; Mix design; Polymers; Prevention; Quality control; Reinforcing materials; Slope stability
• Uncontrolled Terms: Quality
• ITRD Terms: 4742: Air entrained concrete; 4758: Cement; 3874: Control; 2801: Embankment; 5275: Erosion; 4557: Fibre; 9108: Improvement; 4714: Mix design; 7481: Polymerization; 9149: Prevention; 9063: Quality; 3349: Reinforced earth; 3471: Reinforcement (in mater); 5783: Slope stability
• Subject Areas: Geotechnology; Security and Emergencies;

Filing Info

• Accession Number: 00662230
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD, ATRI
• Created Date: Jul 28 1994 12:00AM