The Effect of Binder Rheological Properties on Asphalt Concrete Fracture Behavior

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Rheological properties of asphalt binder are among the most important factors that contribute to cracking in asphalt pavements. Several laboratory tests are promoted to capture fracture tolerance of asphalt concrete. Among these, the semi-circular bend (SCB) test has been gaining popularity due to its ease of use. A laboratory experimental study was undertaken to find how the binder rheological properties correlate with the mix fracture properties when tested under SCB. A number of asphalt mixes were exposed to SCB test. In parallel, dynamic shear rheometer (DSR) tests were conducted on the corresponding binders. Asphalt mixes used in the study included virgin mixes with different binder grades, as well as mixes that included different types and contents of recycled materials and recycling agents. SCB test results were analyzed to deliver a modified version of Illinois flexibility index (I-fit) and peak load; while binders were characterized through shear modulus at intermediate temperature, high temperature performance grade, and Glover-Rowe (G-R) parameter. Results show that binder shear modulus correlate reasonably well with the mix strength and flexibility index, and there are discrepancies between G-R parameter and flexibility index.

Original languageEnglish (US)
Title of host publicationAirfield and Highway Pavements 2019
Subtitle of host publicationTesting and Characterization of Pavement Materials - Selected Papers from the International Airfield and Highway Pavements Conference 2019
EditorsImad L. Al-Qadi, Hasan Ozer, Andreas Loizos, Scott Murrell
PublisherAmerican Society of Civil Engineers (ASCE)
Pages285-294
Number of pages10
ISBN (Electronic)9780784482469
DOIs
StatePublished - Jan 1 2019
EventInternational Airfield and Highway Pavements Conference 2019: Testing and Characterization of Pavement Materials - Chicago, United States
Duration: Jul 21 2019Jul 24 2019

Publication series

NameAirfield and Highway Pavements 2019: Testing and Characterization of Pavement Materials - Selected Papers from the International Airfield and Highway Pavements Conference 2019

Conference

ConferenceInternational Airfield and Highway Pavements Conference 2019: Testing and Characterization of Pavement Materials
CountryUnited States
CityChicago
Period7/21/197/24/19

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Civil and Structural Engineering

Fingerprint Dive into the research topics of 'The Effect of Binder Rheological Properties on Asphalt Concrete Fracture Behavior'. Together they form a unique fingerprint.

Cite this