Balanced Mix Design: Evaluation of Cracking Tests for Airfield Pavements

Details

• Creators:
  Al-Qadi, Imad L. ; Bajaj, Akash ; Lambros, John ; Gangidi, Namith ; Dave, Eshan ; Sias, Jo E ; Modi, Shubham H. ; Ozer, Hasan ; Brockman, Samuel Castro ; Zahid, Awais ; Pine, Bill ; Batioja-Alvarez, Dario D. ; Kazmee, Hasan ; Murell, Scott
  More +
• Corporate Creators:
  Illinois Center for Transportation ; National Asphalt Pavement Association ; University of Illinois, Urbana-Champaign ; University of New Hampshire ; Arizona State University ; Heritage Research Group ; Applied Research Associates
• Corporate Contributors:
  United States. Department of Transportation. Federal Aviation Administration
• Subject/TRT Terms:
  • Asphalt mixtures
  • Tension tests
  • Implementation
  • Laboratory tests
  • Temperature
  • Pavement cracking
  • Mix design
  • Aviation
  • Airports
  • Low temperature
  More +
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States
• Edition:
  Final Report
• Corporate Publisher:
  Illinois Center for Transportation
• Abstract:
  Performance-based asphalt mixture design is gaining widespread adoption for highway pavements due to limitations of the volumetric approach in addressing potential increases in vehicle torque and evolving material components. Airports face similar challenges, including increasing gear loads and tire pressures. The objective of this research was to develop and recommend practical, scientifically robust test protocols to characterize and predict asphalt mixture cracking potential. The resulting test methods, specimen requirements, and provisional acceptance thresholds were prepared for consideration by the Federal Aviation Administration (FAA) and for possible inclusion in FAA Advisory Circular 150/5370-10H, Standards for Specifying Construction of Airports, Part 6-Flexible Pavements, for both laboratory mixture design and production quality assurance/quality control. A broad set of aggregates, binders, plant-loose mixes, and field cores (FC) were sampled from major airports across the United States. Diverse climates and construction practices were considered to ensure field applicability of the final recommended protocols. Protocol development included laboratory-mixed, laboratory-compacted (LMLC) and plant-mixed, laboratory-compacted (PMLC) specimen testing. Results were validated using FC from airfield pavements. Cracking was evaluated in two performance domains: (i) low-temperature cracking, where crack initiation is dominant, and (ii) service-temperature cracking, where propagation and post-peak behavior are critical. Simplicity and ease of implementation in a balanced mix design framework, while being scientifically grounded, were the guiding principles for this work. Since specimen preparation and aging influence asphalt mixture laboratory-measured cracking potential, standardized specimen fabrication and testing protocols were developed.
• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/93462/dot_93462_DS1.pdf
• File Type:
  [PDF - 9.00 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:7eb21c20eff98bf95a29741da964d7afb18a182193a69d677f059115ae13e7edd6293dba54dbbc351d13a9c29889ebc66b266fc5e695b7c866634fc8ca7218b4