EVALUATION OF SYNTHETIC FABRICS FOR THE REDUCTION OF REFLECTIVE CRACKING

This report describes the application of two synthetic fabrics--a nonwoven, polypropylene fabric and a spun bonded, continuous filament nylon fabric--to existing distressed concrete pavement before overlaying with asphaltic concrete. It evaluates the effectiveness of the fabrics in relieving stress and reducing or eliminating reflection cracking in the asphaltic concrete overlay. A separate installation site was chosen for each fabric. Aerial photographs were taken of the original concrete pavement, and visual observations were made periodically at each site during the study to determine to what degree reflection cracks had occurred. Comparison of the test sections with the control sections has shown that the fabrics have neither eliminated reflection cracks nor reduced the degree of cracking. However, it is recommended that the Department continue to observe both fabric installation sites to determine whether either fabric test section will structurally out-perform its respective control section with the passage of time.

• Record URL:
  • http://www.ltrc.lsu.edu/pdf/2008/Report%20090.pdf
• 
• Supplemental Notes:
  • Sponsored in part by Federal Highway Administration, Baton Rouge, La., Louisiana Div.
• Corporate Authors:

  Louisiana Department of Highways

  Research and Development Section
  Baton Rouge, LA  United States 

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Carey, D E
• Publication Date: 1975-4

Media Info

• Pagination: 29 p.

Subject/Index Terms

• TRT Terms: Asphalt concrete; Chemical reduction; Concrete; Concrete pavements; Durability; Fabrics; Fibers; Flexible pavements; Fracture mechanics; Highways; Maintenance; Nylon; Performance tests; Polypropylene; Reflection; Reflection cracking; Stress relieving; Stresses; Synthetic fibers
• Uncontrolled Terms: Nylon fibers
• Old TRIS Terms: Polypropylene fibers; Reduction
• Subject Areas: Geotechnology; Highways; Maintenance and Preservation; Materials; Pavements;

Filing Info

• Accession Number: 00093000
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: LA-70-1B(B) Final Rpt.
• Files: NTIS, TRIS, USDOT, STATEDOT
• Created Date: Nov 18 1976 12:00AM