THE INFLUENCE OF PLASTIC FIBRE FABRIC ON PAVEMENT BEARING CAPACITY DURING SPRING THAW

INVERKAN AV PLASTFIBERDUK PAA OEVERBYGGNADER VID TJAELLOSSNING

The present report deals with an investigation of the influence of a plastic fabric upon the properties of a road pavement on thawing when the fabric is introduced as a protective layer in the pavement. The properties studied were material migration, bearing capacity and fatigue life on repeated loading. Three types of pavement were studied: conventional pavement with granular road base, crushed rock pavement and strengthened gravel road, all having a bituminous wearing course. In the crushed rock pavement comparison was made between a sand filter layer and a fabric. The results showed material migration only in the pavement having an unprotected gravel wearing course, which migrated into the overlay. No influence upon the deflection at static dynamic load due to the absence or presence of the fabric could be ascertained. Pavements with a protective fabric showed longer fatigue life than the similar pavement without fabric. The fabric showed signs of damage only when crushed rock, the sharp edges of which could cause puncturing, was introduced.

• Corporate Authors:

  Swedish National Road and Transport Research Institute (VTI)

  Linköping,   Sweden  SE-581 95
• Authors:
  • Andersson, O
  • FREDEN, S
• Publication Date: 1976

Language

• Swedish

Media Info

• Features: Figures; Photos; Tables;
• Pagination: 27 p.

Subject/Index Terms

• TRT Terms: Accelerated tests; Bearing capacity; Bitumen; Crushed rock; Deflection; Equations; Fabrics; Fatigue (Mechanics); Fibers; Frost protection; Gravel roads; Insulation blankets; Interfaces; Loads; Migration; Motion; Pavement design; Pavement layers; Pavements; Plastics; Repeated loads; Simulation; Thaw; Wearing course (Pavements); Wire mesh
• Uncontrolled Terms: Fatigue life
• Old TRIS Terms: Pavement deflection
• ITRD Terms: 3085: Bearing capacity; 5579: Fatigue (mater); 4557: Fibre; 2940: Formation (road); 2960: Frost blanket; 5429: Interface; 5567: Load; 3470: Mesh; 5483: Movement; 2955: Pavement; 7454: Plastic material; 9103: Simulation; 2589: Thaw
• Subject Areas: Design; Highways; Pavements; I22: Design of Pavements, Railways and Guideways;

Filing Info

• Accession Number: 00163375
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Report/Paper Numbers: Rpt. No. 90 Monograph
• Files: ITRD, TRIS
• Created Date: May 3 1978 12:00AM