Dowel bars are short steel bars that provide a mechanical connection between slabs without restricting horizontal joint movement. They increase load transfer efficiency by allowing the leave slab to assume some of the load before the load is actually over it. This reduces joint deflection and stress in the approach and leave slabs.

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Surveys
Dowel Bar Survey
Questions
- Do you utilize epoxy coated smooth dowels in your concrete pavements?
- Have you excavated smooth dowels from concrete pavements recently? If yes, what condition were they in generally?
- Have you experienced rusting problems with epoxy coated smooth dowels? If yes, about how long were they in place and was the rusting cause for pavement joint failure?
- Do you use smooth dowels that are not epoxy coated? If yes, what coatings do you use and what percentage of your smooth dowels are coated with something other than epoxy?
- Additional comments:
- Would you like a coy of the compiled results of this survey?
Results
Epoxy Coated Dowel Bars Used in Portland Cement Concrete Pavements-Kentucky DOT
Questions
- Do you utilize epoxy coated smooth dowels in your concrete pavements?
- Have you excavated smooth dowels from concrete pavements recently? If yes, what condition were they in generally?
- Have you experienced rusting problems with epoxy coated smooth dowels? If yes, about how long were they in place and was the rusting cause for pavement joint failure?
- Do you use smooth dowels that are not epoxy coated? If yes, what coatings do you use and what percentage of your smooth dowels are coated with something other than epoxy?
Results
Epoxy Coated Dowel Bars Used in Portland Cement Concrete Pavements