Asphalt concrete characterization using the complex modulus technique [thesis]

Yassin Adam
Asphalt concrete (AC) is being used as a surface layer in more than 85% of Canada's roadway network. Traffic and environmental loading induces critical levels of stresses in the AC layer. Currently adopted elastic analysis proved less effective for design because of the viscoelastic nature of the AC response. Mechanistic characterization compatible with emerging mechanistic design models is needed. This thesis adopted the complex modulus approach to establish a laboratory testing technique for
more » ... btaining the parameters needed in mechanistic design. Measured stresses and strains were used to determine the dynamic modulus and phase angle. Effectiveness of the determined parameters was evaluated in two analytical approaches. Database was established using results of tests performed on commonly used AC mixes. The data was organized in a format that fit a variety of applicatibns to function as a pilot material library to serve users with no current testing capabilities. iii Reproduced with permission of the copyright owner. Further reproduction prohibited without permission. ACKNOWLEDGEMENTS
doi:10.22215/etd/2005-10792 fatcat:hxi32rneczh27b7gc7kzxujd44