Accession Number:

ADA570701

Title:

Coating Performance in Duluth Superior Harbor. Part 2

Descriptive Note:

Journal article

Corporate Author:

NAVAL RESEARCH LAB STENNIS DETACHMENT STENNIS SPACE CENTER MS OCEANOGRAPHY DIV

Personal Author(s):

Report Date:

2012-10-01

Pagination or Media Count:

5.0

Abstract:

Sixteen miles 26 km of carbon steel CS sheet piling 12-mm thick ASTM A3281 cold rolled used for docks, bridges, and bulkheads in the Duluth Superior Harbor DSH in Minnesota and Wisconsin are corroding at an accelerated rate of 3 mmy or higher. The corroded pilings have an orange rusty appearance characterized by tubercles i.e., corrosion products and deposits covering areas of localized corrosion. Barrier coatings provide one option for protection of extensive structures in fresh water, and nine coatings were evaluated for corrosion protection of CS coupons and I-beams around DSH after 46 and 35 months, respectively. Part 1 September 2012 MP described the coatings used and the locations of coupons and I-beams. Part 2 discusses the results of the evaluation.

Subject Categories:

  • Coatings, Colorants and Finishes
  • Properties of Metals and Alloys

Distribution Statement:

APPROVED FOR PUBLIC RELEASE