Laboratory and Field Toughening Characteristics of Fiber Reinforced Hot-Mix Asphalt Mixtures

This study investigated the enhanced toughening characteristics of plastic fiber-reinforced hot-mix asphalt (HMA) mixtures in laboratory and field tests. The toughening effects of plastic fiber-reinforced HMA mixtures were characterized using direct tensile loading tests. Adding a small quantity of plastic fibers to HMA was found to significantly increase the mixture's fracture energy, which was calculated using the tensile force-displacement curves. The fracture energy model appeared to be governed by the direct tensile toughening of fiber-reinforced HMA's enhanced fiber bridging effects. The field measurement of the fiber reinforced mixture resulted in at least ten times lower tensile strains than those of the plain HMA at the bottom of HMA. This indicates that the fiber reinforced mixture has a superior field performance than the plain HMA does and can extend overall performance life of the mixtures if adding a small amount of fibers such as 0.4% by the mixture's weight within the context of the fiber developed in this study.

• Record URL:
  https://doi.org/10.1061/9780784413586.020
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/9780784413586
• Supplemental Notes:
  • © 2014 American Society of Civil Engineers.
• Corporate Authors:

  American Society of Civil Engineers

  1801 Alexander Bell Drive
  Reston, VA  United States  20191-4400
• Authors:
  • Ohm, Byung Sik
  • Choi, Ji Young
  • Kim, Booil
  • Yoo, Pyeong Jun
• Conference:
  • Second Transportation & Development Congress 2014
  • Location: Orlando Florida, United States
  • Date: 2014-6-8 to 2014-6-11
• Publication Date: 2014-5

Language

• English

Media Info

• Media Type: Digital/other
• Features: Figures; Photos; References; Tables;
• Pagination: pp 208-220
• Monograph Title: T&DI Congress 2014: Planes, Trains, and Automobiles

Subject/Index Terms

• TRT Terms: Fiber reinforced materials; Field tests; Fracture properties; Hot mix asphalt; Laboratory tests; Stresses; Toughness
• Uncontrolled Terms: Fracture energy
• Subject Areas: Highways; Materials; Pavements; I31: Bituminous Binders and Materials;

Filing Info

• Accession Number: 01531690
• Record Type: Publication
• ISBN: 9780784413586
• Files: TRIS, ASCE
• Created Date: Jul 25 2014 4:20PM