Solutions to Mitigate Dowel/Tie-Bar Propagated Cracking – Phase 1

Project Details
STATE

MN

SOURCE

RIP

START DATE

02/05/20

END DATE

04/30/21

RESEARCHERS

Shreenath Rao, Applied Research Associates

SPONSORS

Pooled Fund TPF - 5 (341) NRRA

KEYWORDS

Concrete pavements, Delamination, Dowel, Dowels (Fasteners), Tie bars

Project description

The goal of this project is to identify the cause(s) and contributing factors of concrete pavement longitudinal and delamination cracking caused by dowel and/or tie-bars. This will be accomplished by reviewing existing literature and developing case studies of projects in NRRA member states exhibiting dowel and/or tie-bar related distresses. Based on the case studies, contractors will be responsible for proposing analytical and/or laboratory experiments that will enable the development of solutions that mitigate longitudinal and/or delamination cracking caused by dowel bar and/or tie-bar stresses.
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