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Title: Laboratory Evaluation of Fiber-Reinforced Polymer Dowel Bars for Jointed Concrete Pavements
Accession Number: 01046104
Record Type: Component
Availability: Transportation Research Board Business Office 500 Fifth Street, NW Abstract: Fiber Reinforced Polymer (FRP) dowel bars were subjected to mechanical evaluation in laboratory conditions. Flexural and shear performance was measured on control and conditioned specimens to determine adequacy for long term service in concrete pavements. The conditioning process consisted of submergence in alkali solution to simulate the high pH in concrete, exposure to water to simulate the high moisture content, and ultraviolet radiation from sunlight during transporting and handling. Strength, stiffness, and fatigue life are described in detail, and test results on bars from two manufacturers (two types of bars) are discussed, including susceptibility to the three conditioning processes. Stiffness was found to be independent of load frequency, but a 10 to 15 percent stiffness reduction was found to occur as temperature changes from 20 degrees to 40 degrees centigrade. It was also found that when FRP dowels fail in bending fatigue, they fail when the stiffness is reduced to about 50 percent of the original (unconditioned) stiffness.
Monograph Title: Monograph Accession #: 01042056
Report/Paper Numbers: 07-2450
Language: English
Corporate Authors: Transportation Research Board 500 Fifth Street, NW Authors: Bian, YiKohler, ErwinHarvey, John TPagination: 20p
Publication Date: 2007
Conference:
Transportation Research Board 86th Annual Meeting
Location:
Washington DC, United States Media Type: CD-ROM
Features: Figures; Photos; References
(27)
TRT Terms: Uncontrolled Terms: Subject Areas: Construction; Design; Highways; Pavements; I22: Design of Pavements, Railways and Guideways; I52: Construction of Pavements and Surfacings
Source Data: Transportation Research Board Annual Meeting 2007 Paper #07-2450
Files: TRIS, TRB
Created Date: Feb 8 2007 7:08PM
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