Corrosion Protection of Steel Bridges Using Duplex Coating Systems
Bridge coatings greatly contribute to the longevity of steel bridges and reduce the total life-cycle
cost by protecting steel bridge members from corrosion. The current approach for most steel bridges in the U.S.
is a three-coat, zinc-rich primer system, which has
proven to be a maintenance challenge for bridge owners.
NCHRP Research Report 1048: Corrosion Protection of Steel Bridges Using Duplex Coating Systems,
from TRB's National Cooperative Highway Research Program,
presents recommendations for the use of duplex coatings for corrosion protection of
new and existing steel bridges.
Supplemental to the report are
Appendices that provide details of the literature review, five studies, and the research results
and a
PowerPoint presentation with workshop training materials.
This Summary Last Modified On: 6/28/2023