Polymer Modified Asphalt Durability in Pavements

Details

• Creators:
  Woo, Won Jun ; Ofori-Abebresse, Edward ; Chowdhury, Arif ; Hilbrich, Jacob M ; Kraus, Zachary ; Martin, Amy Epps ; Glover, Charles J.
• Corporate Creators:
  Texas A&M University System. Texas Transportation Institute
• Corporate Contributors:
  Texas Department of Transportation. Research and Technology Implementation Office ; United States. Department of Transportation. Federal Highway Administration
• Subject/TRT Terms:
  Asphalt Asphalt Concrete Pavements Asphalt Mixtures Asphalt Pavements Binders Durability Failure Hardness Pavement Design Pavement Performance Pavements

  More +
• Publication/ Report Number:
  FHWA/TX-07/0-4688-1
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States
• Edition:
  September 2004-August 2006
• Corporate Publisher:
  Texas. Department of Transportation
• Abstract:
  The project was designed to develop (1) a better quantitative understanding of the relation between laboratory accelerated binder aging and field aging, (2) a test procedure to measure properties of an aged binder that relate to failure on the road and (3) a proposed specification for estimating the relative durability of binders in the presence of oxidative aging. Tests were conducted on original base and polymer modified binders, laboratory compacted mixtures, and pavement aged binders. The project necessarily evolved to a more comprehensive approach to improving pavement service life. Methods for significantly improving pavement durability should be implemented: (1) construct pavements with the lowest possible accessible (interconnected) air voids, consistent with other best construction and mix design practices; (2) use mix designs that have an inherently low decrease in fatigue life with binder oxidation, coupled with an appropriately high initial fatigue life; (3) use binders with a minimum stiffness at the PAV* 16 hour condition (consistent with the appropriate performance grade); (4) use the pavement aging model for pavement design; (5) use binders that have inherently slow hardening rates kinetics; and (6) use modifiers that provide the most reduction in the hardening rate. Items 1 and 2 have a dramatic impact on pave service life but require additional research for the most effective implementation: (1) determine the parameters that govern the decline of mixture fatigue life with binder hardening; (2) determine methods to reliability; and (3) with minimal risk to other construction parameters, achieve very low accessible air voids in pavements.
• Format:
  PDF
• Funding:
  0-4688
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:b7df57c742f45b77dbc9fb99b21dbe6eeaff9c10f899e8711b9a4cd28a1b7001da1aa394296edc86c750d5646f635bbbfb563ba61af8a2137f8077fd693fe037
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/88508/dot_88508_DS1.pdf
• File Type:
  [PDF - 8.52 MB ]