Journal Published Online: 28 August 2013
Volume 41, Issue 6

Nano-Mechanical Characterization of Mastic, Aggregate, and Interfacial Zone in Asphalt Composites

CODEN: JTEVAB

Abstract

This study used a nanoindentation technique to explore the local nanoscale mechanical properties of material phases and interfaces in an asphalt concrete composite. Regions of aggregate and mastic and their interfaces were nanoindented, and the load-displacement curves were analyzed to calculate the elastic modulus and hardness of the three phases. The interface region was found to have hardness and modulus values between those of the aggregate and the mastic. This study contributes significantly to the nanoscale characterization of asphalt concrete composites, as it provides unique measurements of mechanical properties of phases and especially the interface at a very small scale.

Author Information

Khorasani, S.
Mechanical Engineering, Texas A&M Univ., College Station, TX, US
Masad, E.
Mechanical Engineering, Texas A&M Univ. at Qatar, Education City, QA Texas A&M Transportation Institute, College Station, TX, US Civil Engineering, Texas A&M Univ., College Station, TX, US
Kassem, E.
Texas A&M Transportation Institute, College Station, TX, US
Abu Al-Rub, R.
Civil Engineering, Texas A&M Univ., College Station, TX, US
Pages: 9
Price: $25.00
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Details
Stock #: JTE20120178
ISSN: 0090-3973
DOI: 10.1520/JTE20120178