Glass Fiber Reinforced Polymer Dowel Bars for Transverse Pavement Joints

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Title: Glass Fiber Reinforced Polymer Dowel Bars for Transverse Pavement Joints

Author(s): D. Davis and M. L. Porter

Publication: Special Publication

Volume: 188

Issue:

Appears on pages(s): 297-304

Keywords: concrete pavements; dowel bars; doweled joints; fiber reinforced polymer

Date: 8/1/1999

Abstract:
This paper suggests an approach to the design of glass fiber reinforced polymer dowels (GFRP) for transverse joints of highway pavement slabs. It also discusses some of the research being conducted at Iowa State University to confirm this procedure. Preliminary results from this research indicate that the GFRP dowel bars appear to be a feasible solution to the deterioration of the transverse joints of highway pavement slabs as long as the diameter of the dowel is increased, spacing decreased, or a combination of both. This adjustment is necessary in order to keep the deflection of the joint and thus the flexural stresses in the concrete equivalent to those experienced by their steel counterparts.