Determining the Dynamic Modulus of a Viscoelastic Asphalt Mixture Using an Impact Resonance Test With Damping Effect
Author:
- 19 March 2015
- journal article
- research article
- Published by Taylor & Francis in Research in Nondestructive Evaluation
- Vol. 26 (4) , 189-207
Abstract
A nondestructive technique to test asphalt concrete mixtures is proposed that considers the thermorheological behavior, the temperature dependence of material properties, and a master curve fitting method of a Nelder–Mead simplex search to determine the dynamic moduli of asphalt concrete mixtures using a transmissibility function, resonance frequencies at various temperatures, and loss factors. To verify this nondestructive testing technique based on an impact resonance method, an indirect tension test (IDT) was conducted using a temperature and frequency sweep test. Graphical comparisons of the results of the nondestructive impact resonance and IDT tests showed that the dynamic modulus master curves agreed well.Keywords
Funding Information
- National Research Foundation of Korea (2011-0030040)
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