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United States Department of Transportation United States Department of Transportation
OFFICE OF RESEARCH, DEVELOPMENT, AND TECHNOLOGY AT THE TURNER-FAIRBANK HIGHWAY RESEARCH CENTER

Evaluation and Removal of Surface Contaminants From Steel Prior to Coating

Project Information

Project ID:
FHWA-PROJ-11-0057
Project Abstract:

Well-performing bridge coating systems are founded upon proper preparation prior to coating. Most coating systems require a near white metal blast-cleaned finish prior to the primer coat. However, there is a possibility for surface contamination from either not being removed during the blast cleaning operation or contaminated blast media, causing contamination. This project aims to understand what an acceptable level of contamination is prior to coating, identify what cleaning methods are required to achieve the acceptable level, and identify what means are necessary to measure the surface contaminant concentrations.

Goals

The key project objectives are to:

(1) Identify effective means of measuring chloride, nitrate, and sulfate contamination on the surface of uncoated steel.

(2) Identify proper techniques for cleaning uncoated steel to a target level of contamination.

(3) Determine what levels of contamination are detrimental to bridge coating performance.

Project Status:
Completed
Project Funding Amount (Contract Award Amount):
$0.00
Start Date:
End Date:
Public Access Plan:
No
Laboratory:
  • Coatings and Corrosion Laboratory
FHWA Program Area:
  • Infrastructure
FHWA AMRP Program:
  • Structures

Contact Information

First Name:
Justin
Last Name:
Ocel
Phone Number:
(202) 493-3080
Email Address:
Team:
Bridge Engineering Team
Office:
Office of Infrastructure Research and Development
Office Code:
HRDI-40

Management Organizations

Sponsor Organization

Organization Role:
Sponsor Organization
Organization:
Federal Highway Administration: Office of Research, Development, and Technology - Office of Infrastructure Research and Development
Contact Role:
Project Lead
Contact:

Managing Organization

Organization Role:
Project Managing Organization
Organization:
Federal Highway Administration: Office of Research, Development, and Technology - Office of Infrastructure Research and Development
Contact Role:
Project Contact
Contact:

Performing Organization

Organization Role:
Performing Organization
Organization:
Federal Highway Administration: Office of Research, Development, and Technology - Office of Infrastructure Research and Development
Contact Role:
Project Contact
Contact: