Investigation of Surface Mechanical Properties of Asphaltic Material Using Nanoindentation
Each year, highways and roads stay within the six highest general expenditures in the United States (US). While considering all of the roadway pavements tracked by the Federal Highway Administration, 85% of roadway pavements in the US are constructed using asphalt. Though a large part of these pavement expenditures are utilized for pavement performance and material characterization, asphalt performance prediction is an unsolved mystery to asphalt users and researchers.
In the last decade there has been quite an extensive amount of research done in understanding the local characterization of asphalt using tools like nanoindentation. By definition, asphalt concrete is a mixture of varying size of stone aggregate and asphalt. The mixing of the asphalt binder creates a thin film, 6 to 15 microns around the stone surface. The pavement performance predominantly depends on that thin film characterization.
The main focus of this webinar is to cover:
- Local and bulk material characterization of asphalt,
- Identification of different phases in asphalt concrete,
- Determination of dynamic modulus, creep, relaxation and cohesion
Dr. Hasan Faisal is a Surface Mechanical Properties Specialist at Anton Paar USA. During the last 10 years, Dr. Faisal has researched a range of material engineering problems with an emphasis on soft and composite materials. His work has resulted in over 40 refereed publications, like in Transportation research record Journal, ASCE Journal of Nano and Micromechanics, Journal of Materials, Fuel, and so on. He received his Ph.D. and M.S. from the University of New Mexico, his research focused on Nanomechanical Characterization of Asphalt and asphalt concrete aging. He has received several awards for his pioneering work in asphalt research, like a distinction for extraordinary work on his Ph.D. research, GEOMATE best paper award, Professional development award, and so on.