Assessment of Retrofit Dowel Benefits in Cracked Portland Cement Concrete Pavements
Publication: Journal of Performance of Constructed Facilities
Volume 18, Issue 1
Abstract
A parametric study was conducted using the finite-element rigid pavement program ISLAB2000. For cracks that utilize aggregate interlock as the sole means of load transfer, the integrity of the cracks was initially modeled using the aggregate interlock factor. A subsequent analysis was then performed on the same cracks for the case where both dowel bars and aggregate interlock were available for load transfer purposes. The latter scenario represents the case where dowel bar retrofitting (DBR) has been performed on the cracks. In both cases, the deflection load transfer efficiency and critical slab tensile stresses were computed in order to examine the immediate theoretical benefits of the dowel bars. The validity of these theoretical benefits was tested using data from falling-weight deflectometer testing on DBR sites in both Michigan and Washington. It was found that installation of dowel bars did not increase the load transfer efficiency for cracks that had levels greater than 89–95%, depending on pavement parameters. When temperature gradients were not considered, little change in tensile stress due to a load at the crack was exhibited when DBR was performed on cracks that had load transfer efficiency levels less than 70–80%.
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References
AASHTO guide for design of pavement structures. (1993). American Association of State Highway and Transportation Officials, Washington, D.C.
Benkelman, A. C.(1933). “Tests of aggregate interlock at joints and cracks.” Eng. News-Rec., 111(8), 227–232.
Buch, N., Frabizzio, M. A., and Hiller, J. E. (2000). “Factors affecting shear capacity of transverse cracks in jointed concrete pavements.” Final Rep. No. RC-1385, Michigan Department of Transportation, Mich.
Federal Highway Administration. (1997). “Concrete rehabilitation: Guide for load transfer restoration.” Rep. FHWA-SA-97-103, U.S. Department of Transportation, Washington, D.C.
Frabizzio, M. A., Buch, N., and Hiller, J. E.(2000). “Impact of coarse aggregates on transverse crack performance in jointed concrete pavements.” ACI Mater. J., 97(3), 325–332.
Guo, H., Sherwood, J. A., and Snyder, M. B.(1995). “Component dowel-bar model for load-transfer systems in PCC pavements.” J. Transp. Eng., 121(3), 289–298.
Pierce, L. M. (1994). “Portland cement concrete pavement rehabilitation in Washington State: Case study.” Transportation Research Record 1449, Transportation Research Board, Washington, D.C., 189–198.
Pierce, L. M. (1997). “Design, construction, performance and future direction of dowel bar retrofit in Washington State.” Proc., 6th Int. Purdue Conf. on Concrete Pavement Design and Materials for High Performance, Vol. 2, Purdue University, Indianapolis, 87–100.
Poblete, M., Valenzuela, R., and Salsilli, R. (1988). “Load transfer in undoweled transverse joints of PCC pavements.” Transportation Research Record 1207, Transportation Research Board, Washington, D.C., 39–49.
Raja, Z. I., and Snyder, M. B. (1991). “Factors affecting deterioration of transverse cracks in jointed reinforced concrete pavements.” Transportation Research Record 1307, Transportation Research Board, Washington, D.C., 162–168.
Snyder, M. B., Reiter, M. J., Hall, K. T., and Darter, M. I. (1989). “Rehabilitation of concrete pavements: Volume I—Repair rehabilitation techniques.” Rep. FHWA-RD-88-071, Federal Highway Administration, U.S. Department of Transportation, Washington, D.C.
Zaniewski, J. P., and Mamlouk, M. S. (1996). “Preventive maintenance effectiveness—Preventive maintenance treatments.” Rep. FHWA-SA-96-027, Federal Highway Administration, U.S. Department of Transportation, Washington, D.C.
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Published In
Journal of Performance of Constructed Facilities
Volume 18 • Issue 1 • February 2004
Pages: 29 - 35
Copyright
Copyright © 2004 American Society of Civil Engineers.
History
Received: Mar 19, 2002
Accepted: Dec 4, 2002
Published online: Jan 16, 2004
Published in print: Feb 2004
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