Forensic Investigations of Roadway Pavement Failures
Publication: Journal of Performance of Constructed Facilities
Volume 22, Issue 1
Abstract
This paper presents three field projects to illustrate the integrated approach to forensic investigations of roadway pavement failures used widely in Texas. In each case, the combined ground-penetrating radar (GPR) and falling weight deflectometer (FWD) data were extremely useful for identifying contributing factors, such as stripping in the hot mix or localized areas of wet or weak base. Dynamic cone penetration (DCP) is used for validating problems with base and subbase layers. Laboratory tests are often required to complete the investigation, especially if the repair strategy calls for in-place recycling of the existing structure. The extent of stripping and high porosity that caused delamination for Projects 1 and 2 was detected by GPR and verified by core samples. GPR, FWD, DCP, and field soil samples all showed indications that the existing base on Project 1 was wet and the stiffness was only about one-third that of a typical flexible base in Texas. FWD data demonstrate that the pavement structures for Projects 1 and 2 were inadequate, so a rehabilitation strategy was selected that included structural strengthening. In Project 3, GPR, lab density, and permeability tests indicate that the dramatic pavement failures were attributable to moisture entering the base through a poorly compacted asphalt concrete layer and poor longitudinal joints. The base material was found to be highly susceptible to moisture and did not meet the Texas Department of Transportation’s compressive strength requirements when subjected to capillary soaking. The repetitive triaxial test results revealed that the stiffness and load-carrying capability became inadequate when the base materials were exposed to moisture. The pavement structure had been totally replaced in 2004.
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Acknowledgments
The support and assistance of John Bilyeu, Susan Chu, Pete Stricker, Don Nyland, Miguel Arellano, Richard Izzo, and Dr. Mike Murphy of the Texas Department of Transportation are much appreciated.
References
Barbu, B. G., and Scullion, T. (2006). “Repeatability and reproducibility study for tube suction test.” Implementation Rep. 5-4114-01-1. Texas Transportation Institute, College Station, Tex.
Brown, E. R., Rown, M., Hainin, R., Cooley, A., and Hurley, G. (2004). “Relationships of HMA in-place air voids, lift thickness, and permeability.” NCHRP Rep. 9-27, Transportation Research Board, Washington, D.C.
Chen, D.-H., Chen, T., Scullion, T., and Bilyeu, J. (2006). “Integration of field and lab testing to determine the causes of a premature pavement failure.” Can. J. Civ. Eng., 33(11), 1345–1358.
Chen, D.-H., and Scullion, T. (2007). “Using-nondestructive testing technologies to assist in selecting the optimal pavement rehabilitation Strategy.” J. Test. Eval., 35(2), 211–219.
Scullion, T. (2004). “Performance of full depth recycling projects in Texas.” Summary Rep. PSR 0-4182-S, Texas Transportation Institute, College Station, Tex.
Scullion, T., and Chen, Y. (1999). “COLORMAP version 2 user’s guide with help menus.” Research Rep. 1702-4, Texas Transportation Institute, College Station, Tex.
Scullion, T., and Michalak, C. H. (1997). “Flexible pavement design system (FPS) 19: User’s manual.” Research Rep. 1987-2. Texas Transportation Institute, College Station, Tex.
Sebesta, S. D., and Scullion, T. (2002). “Using infrared imaging and ground-penetrating radar to detect segregation in hot-mix overlays.” Research Rep. 4126-1, Texas Transportation Institute, College Station, Tex.
Syed, I., Scullion, T., and Randolph, R. B. (2000). “Use of tube suction test for evaluation of aggregate base materials in frost/moisture susceptible environment.” TRB 001147, Transportation Research Board, Washington, D.C.
Texas Dept. of Transportation (TxDOT). (2004). “Standard specifications for construction and maintenance of highways, streets, and bridges.”
Wang, D. (2000). “Florida Superpave experience.” ⟨http://www.dot.state.fl.us/construction/asphalt/pdf%20files/superpex.pdf⟩.
Information & Authors
Information
Published In
Journal of Performance of Constructed Facilities
Volume 22 • Issue 1 • February 2008
Pages: 35 - 44
Copyright
© 2008 ASCE.
History
Received: Jan 11, 2007
Accepted: Jun 22, 2007
Published online: Feb 1, 2008
Published in print: Feb 2008
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