THE PERFORMANCE OF A FLEXIBLE PAVEMENT CONSTRUCTED ON A STRONG FABRIC

The structural behaviour under traffic of a bituminous pavement containing a strong woven fabric between the sub-base and a clay of low strength was compared with a control pavement of similar construction but without fabric. The presence of the fabric did not affect the development of rutting in the wheel paths or the deflection of the road surface as measured by a deflection beam. Also the permanent vertical strain in the soil and the transient longitudinal and transverse strain at the bottom of the bituminous layer were not influenced by the fabric. Insufficient measurements were made to draw a firm conclusion about its effect on the transverse strain in the soil. The fabric made construction of the road easier in the very poor weather conditions encountered when the road was built and it prevented the granular sub-base from mixing with the clay. On the section without fabric the sub-base penetrated into the clay to a depth of about 70 mm when it was compacted. (Author/TRRL)

• Corporate Authors:

  Transport and Road Research Laboratory (TRRL)

  Wokingham, Berkshire  United Kingdom 
• Authors:
  • Halliday, A R
  • POTTER, J F
• Publication Date: 1984

Media Info

• Features: Figures; References; Tables;
• Pagination: 8 p.
• Serial:
  • TRRL LABORATORY REPORT
  • Issue Number: 1123
  • Publisher: Transport and Road Research Laboratory (TRRL)

Subject/Index Terms

• TRT Terms: Bituminous mixtures; Clay; Deflection; Flexible pavements; Geotextiles; Granular materials; Measurement; Pavement layers; Pavement performance; Pavements; Performance; Ruts (Pavements); Rutting; Soils; Strain (Mechanics); Structural analysis; Subbase (Pavements); Subgrade (Pavements); Woven materials
• Uncontrolled Terms: Rut; Subbase
• Old TRIS Terms: Pavement deflection; Strains
• ITRD Terms: 4967: Bituminous mixture; 4177: Clay; 5586: Deflection; 5595: Deformation; 5910: Durability; 2944: Flexible pavement; 4568: Geotextile; 4107: Granular; 6136: Measurement; 2955: Pavement; 3081: Rutting (wheel); 4156: Soil; 5573: Stress analysis; 2950: Subgrade; 4549: Woven material
• Subject Areas: Design; Geotechnology; Highways; Pavements; I22: Design of Pavements, Railways and Guideways;

Filing Info

• Accession Number: 00391959
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD, TRIS
• Created Date: Mar 29 1985 12:00AM