Effectiveness of FWD to Simulate Traffic Loading in Recycled Pavements
Publication: Journal of Performance of Constructed Facilities
Volume 30, Issue 1
Abstract
The aim of the present research is to investigate the effectiveness of the falling weight deflectometer (FWD) to simulate the traffic loading in the case of asphalt pavements that have been cold in-depth recycled (CIR) using foamed asphalt (FA) as a stabilization treatment for base works. The investigation is related with the need of understanding the behavior of asphalt CIR pavements under repeated traffic loads that can result in the prediction of pavement performance and contribute in the optimization of pavement design or redesign. For this purpose, a testing experiment was conducted to monitor and document the in situ developed strains under both FWD loading and truck loading, and to compare them with the calculated ones from finite-element (FE) linear elastic analysis. The developed strains were measured using a fiber optic sensors (FOS) system. The collected data were processed and analyzed taking into account the local conditions. The analysis results indicated that the maximum tensile strains from FWD loading were similar to the values generated by traffic (truck) loading. This was more evident at the bottom of the FA recycled layer.
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References
ABAQUS version 6.5-1 [Computer software]. Hibbitt, Karlsson & Sorensen.
ASTM. (2010). “Standard test method for determining the thickness of bound pavement layers using short-pulse radar.” D4748–10, West Conshohocken, PA.
Bueche, N., Rychen, P., and Dumont, A. G. (2009). “Optical fiber feasibility study in accelerated pavement testing facility.” Proc., 6th Int. Conf. on Maintenance and Rehabilitation of Pavement and Technological Control (MAIREPAV), International Society for Maintenance and Rehabilitation of Transport Infrastructures (iSMARTi), Torino, Italy.
Chen, D., and Scullion, T. (2008). “Forensic investigations of roadway pavement failures.” J. Perform. Constr. Facil., 35–44.
Chen, D. H., Bilyeu, J., Scullion, T., Nazarian, S., and Chiu, C. T. (2006). “Failure investigation of a foamed-asphalt highway project.” J. Infrastruct. Syst., 33–40.
Deng, L., and Cai, C. S. (2007). “Applications of fiber optic sensors in civil engineering.” J. Struct. Eng. Mech., 25(5), 577–596.
Doré, G., Pierre, P., and Duplain, G. (2007). “Monitoring mechanical response of in service pavements using retrofitted fiber optic sensors.” Proc., Int. Conf. on Advanced Characterization of Pavement and Soil Engineering Materials, Athens, Greece, 883–891.
Eller, A., and Olson, R. (2009). “Recycled pavement using foamed asphalt in Minnesota.”, Office of Materials and Road Research, Research Services Section, Minnesota Dept. of Transportation, Minneapolis.
European Commission. (2005). “Use of falling weight deflectometers in pavement evaluation.”, Directorate General Transport, European Cooperation in the Field of Scientific and Technical Research, Brussels, Belgium.
Irwin, L. H. (2000). “MODCOMP5 user’s guide.” Cornell Univ. Local Roads Program.
Jenkins, K. J., Long, F. M., and Ebels, L. J. (2007). “Foamed bitumen mixes = shear performance?” Int. J. Pavement Eng., 8(2), 85–98.
Jones, D., Fu, P., and Harvey, J. T. (2009). “Full-depth pavement reclamation with foamed asphalt in California: Guidelines for project selection, design, and construction.”, Univ. of California, Pavement Research Center, Davis and Berkeley, CA.
Kim, Y. R., and Park, H. (2002). “Use of falling weight deflectometer multi-load data for pavement strength estimation.”, Dept. of Civil Engineering, North Carolina State Univ., Raleigh, NC.
Lee, K. W., Brayton, T., and Huston, M. (2002). “Development of performance based mix design for cold in-place recycling (CIR) of bituminous pavements based on fundamental properties.”, Washington, DC.
Loizos, A., and Papavasiliou, V. (2007). “In situ characterization of pavement materials stabilized with foamed asphalt and cement.” Proc., Int. Conf. on Advanced Characterization of Pavement and Soil Engineering Materials, CRC Press, Boca Raton, FL, 875–882.
Loizos, A., Plati, C., and Papavasiliou, V. (2013). “Fiber optic sensors for assessing strains in cold in-place recycled pavements.” Int. J. Pavement Eng., 14(2), 125–133.
Losa, M., and Di Natale, A. (2014). “Accuracy in predicting viscoelastic response of instrumented asphalt pavements.” Proc., 3rd Int. Conf. on Transportation Infrastructures ICTI 2014, International Society for Maintenance and Rehabilitation of Transport Infrastructures (iSMARTi), Pisa, Italy, 339–346.
Lukanen, E. O. (2005). “Load testing of instrumented pavement sections.”, Dept. of Civil Engineering, Univ. of Minnesota, MN.
Papavasiliou, V., and Loizos, A. (2009). “Bearing capacity assessment of recycled asphalt pavements.” Proc., 8th Int. Conf. on the Bearing Capacity of Roads, Railways, and Airfields (BCR2A), CRC Press, Boca Raton, FL, 643–651.
Papavasiliou, V., Loizos, A., and Plati, C. (2010). “Monitoring the performance of cold in-depth recycled pavements.” Proc., 11th Int. Conf. on Asphalt Pavements, International Society for Asphalt Pavements (ISAP), Nagoya, Japan.
Rens, K., Wipf, T., and Klaiber, F. (1997). “Review of nondestructive evaluation techniques of civil infrastructure.” J. Perform. Constr. Facil., 152–160.
Sharp, R. S., Galal, A. K., and Elfino, K. M. (2006). “Using fiber-optic sensor technology to measure strains under the asphalt layer of a flexible pavement structure.”, Virginia Transportation Research Council, Charlottesville, VA.
Information & Authors
Information
Published In
Journal of Performance of Constructed Facilities
Volume 30 • Issue 1 • February 2016
Copyright
© 2014 American Society of Civil Engineers.
History
Received: May 12, 2014
Accepted: Oct 16, 2014
Published online: Nov 18, 2014
Discussion open until: Apr 18, 2015
Published in print: Feb 1, 2016
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