ACPA is announcing the release of two specifications that can be used by agencies and manufacturers to guide the development, testing, and implementation of new and alternative dowel bar materials and configurations for concrete pavement projects.
ACPA’s new Standard Specification (M254-21) and Standard Method of Test (T253-21) for Dowel Bars for Concrete Street and Highway Pavement were developed as alternatives and revised versions of the existing AASHTO specifications (M 254-06 (2019) and T 253-02 (2016)), which are limited to standard, epoxy-coated steel bars only.
The need for these new updated specifications was identified by ACPA dowel manufacturer members, who are increasingly offering alternative dowel materials and protective coatings. ACPA’s Jointing Task Force took on the challenge in 2019 and after working out the approach, work began in earnest in 2020. ACPA partnered with the National Concrete Consortium to perform the required full-scale laboratory testing which was completed at CTL Group in May 2020.
Dr. Mark Snyder led the task force, full-scale research effort, and the detailed specification writing process with counsel from a small group of ACPA members and several state DOT engineers. This ACPA Task Force came together over the past 18 months on this effort. The next step is for the Task Force to begin petitioning AASHTO to upgrade their current specifications with ACPA’s suggested revisions.
ACPA M254-21 – Standard Specification for Dowel Bars for Concrete Street and Highway Pavement can be found here.
ACPA T253-21 – Standard Method of Test for Dowel Bars for Concrete Street and Highway Pavement can be found here.