PERFORMANCE EVALUATION OF FIBER REINFORCED ASPHALT CONCRETE. FINAL REPORT

Literature review, site condition surveys, and laboratory tests were conducted to assess the performance of asphalt concrete pavements reinforced by synthetic fibers (mainly polyester fibers and polypropylene fibers) in the present study. Based on available research reports, fiber reinforcement was found, in most instances, to be able to delay reflective crack formation in asphalt concrete pavements for up to two years. However, addition of fibers did not seem to significantly enhance the rutting resistance of fiberized sections. Similar conclusions were also derived based on the existing site condition surveys. Uniaxial creep test, fatigue test, resilient modulus test, indirect tensile strength test, and Marshall stability test were performed in the laboratory to evaluate the effectiveness of fibers in resisting crack formation and rutting in asphalt concrete pavements. It was found that reinforcement provided by fibers does increase the fracture energy and indirect tensile strength, which indicates a better crack resistance provided by the fiberized mixes. However, test results obtained from uniaxial creep test and loaded-wheel test indicated that utilization of fibers may not be a very effective solution for rutting problems observed in asphalt concrete pavements. A more rigorous field test was recommended to verify the findings reported in this project.

• Corporate Authors:

  Ohio State University, Columbus

  Department of Civil Engineering
  Hitchcock Hall 470
  Columbus, OH  United States  43210

  Ohio Department of Transportation

  25 South Front Street
  Columbus, OH  United States  43215

  Farradyne Systems, Incorporated

  1776 East Jefferson Street
  Rockville, MD  United States  20852
• Authors:
  • Jenq, Y-S
• Publication Date: 1994-3-31

Language

• English

Media Info

• Features: Appendices; Figures; Photos; References; Tables;
• Pagination: 156 p.

Subject/Index Terms

• TRT Terms: Asphalt concrete; Condition surveys; Creep tests; Fatigue tests; Fiber reinforced concrete; Fibers; Fracture mechanics; Guides to the literature; Laboratory tests; Literature reviews; Marshall test; Modulus of resilience; Performance evaluations; Polyester resins; Polypropylene; Reflection cracking; Rutting; Tensile strength; Tension tests
• Uncontrolled Terms: Fiber reinforcement; Fracture energy; Indirect tensile test; Polyester fibers
• Old TRIS Terms: Polypropylene fibers
• Subject Areas: Highways; Materials; Pavements; I23: Properties of Road Surfaces; I31: Bituminous Binders and Materials;

Filing Info

• Accession Number: 00672569
• Record Type: Publication
• Report/Paper Numbers: FHWA/OH-94/018
• Contract Numbers: State Job No. 14482(0)
• Files: TRIS, STATEDOT
• Created Date: Jan 17 1995 12:00AM