Non-contact acoustic field measurements are performed on a newly built highway to characterize the real part of the dynamic modulus of the asphalt concrete (AC) top layer. The in situ measurements are performed using an array of 48 micro-electromechanical system (MEMS) sensors. Cores extracted from the field measurement positions are then examined in a laboratory using seismic modal testing for comparison. The laboratory testing allows master curves to be constructed to characterize the AC over a wide temperature and frequency range. It is demonstrated that the real parts of the dynamic moduli are consistent at the field temperatures using the two test methods. The in situ measurements are also shown to be highly repeatable. The presented comparative study indicates a possible application for assuring the quality of AC based on mechanical properties using fast noncontact in situ measurements.
1. Aouad, M. F.,K. H. Stokoe II, J. M. Roesset, ”Evaluation of flexible pavements and subgrades using the spectral-analysis-of-surface-waves (SASW) method,” Research Report 1175-7F, Research Project 2/3-18-88/1-1175 Development of dynamic analysis techniques for falling weight deflectometer data, Center for Transportation Research, The University of Texas at Austin, 1993.
2. Nazarian, S., D. Yuan, and V. Tandon, “Structural field testing of flexible pavement layers with seismic methods for quality control”, Journal of the Transportation Research Board, 1654, 50-60, 1999.
3. Ryden, N. and C. B. Park, “Fast simulated annealing inversion of surface waves on pavements using phase velocity spectra,” Geophysics, 71 (4), R49-R58, 2006.
4. Zhu, J. and J. S. Popovics, “Non-contact detection of surface waves in concrete using an air-coupled sensor,” AIP Conference Proceedings, 615, 1261-1268, 2002.
5. Kee, S.-H., T. Oh, T., J. S. Popovics, R. W. Arndt, and J. Zhu, “Nondestructive bridge deck testing with air coupled Impact-Echo and infrared thermography,” J. Bridge Eng. 17, 928-939, 2012.
6. Bjurström, H., N. Ryden, and B. Birgisson, ”Non-contact surface wave testing of pavements: comparing a rolling microphone array with accelerometer measurements,” Smart Structures and Systems, Vol. 17 (1), 1-15, 2016.
7. Gudmarsson, A., N. Ryden, and B. Birgisson, "Characterizing the low strain complex modulus of asphalt concrete specimens through optimization of frequency response functions," J. Acoust. Soc. Am., 132 (4), 2304-2312, 2012.
8. Park, C. B., R. D. Miller, and J. Xia, “Multichannel analysis of surface waves,” Geophysics, 64 (3), 800-808, 1999.
9. Lamb, H., “On waves in an elastic plates,” Proceedings of the Royal Society of London, Series A, 93 (648), 114-128, 1917.
10. Gudmarsson, A., N. Ryden, H. Di Benedetto, C. Sauzéat, N. Tapsoba, B. Birgisson, "Comparing linear viscoelastic properties of asphalt concrete measured by laboratory seismic and tension-compression tests," Journal of Nondestructive Evaluation, Vol. 33, Issue 4, 571-582, 2014.
11. Havriliak, S. and S. Negami, "A complex plane analysis of α-dispersions in some polymer systems," J. Polym. Sci. C, 14, 99–117, 1966.
12. Madigosky, W. M., G. F. Lee, and J. M. Niemiec, "A method for modeling polymer viscoelastic data and the temperature shift function," J. Acoust. Soc. Am., Vol. 119, 3760–3765, 2006.
13. Williams, M. L., R. F. Landel, and J. D. Ferry, "The temperature dependence of relaxation mechanisms in amorphous polymers and other glass-forming liquids," J. Am. Chem. Soc., 77, 3701, 1955.
34 Page Views
0 PDF Downloads
0 Facebook Shares