United States Department of Transportation
i
Investigation of dowel bar placement accuracy with a dowel bar inserter
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2003-05-01
[PDF-1.62 MB]
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Abstract:Dowel bar inserters (DBI) on concrete paving equipment eliminate the need for manually placing dowel bar baskets. Reduced manual labor eventually pays off the initial investment in a DBI and ultimately results in reduced PCCP costs to the roadway owner. The purpose of this investigation was to compare the dowel bar placement accuracy of a DBI with the performance of conventional dowel baskets. Ground penetrating radar (GPR) was used to measure dowel bar skew, translation, and depth at specific joint locations on a US 60 jointed plain concrete pavement (JPCP) construction project near Van Buren. The general conclusion of the investigation was that the Gunter-Zimmerman DBI provides similar dowel bar placement accuracy to dowel baskets. 4 Appendices, 39 p.
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