Arlington County VA. Bearing Bridge
Type of Project:
Maintenance painting of bridge bearings.
Project Description:
Sandblast clean corroding bridge bearings and application of Termarust coating system.
Reason project was undertaken:
Bridge bearings were badly corroded and had to be cleaned and coated to prevent further corrosion and possible replacement of bearings.,
Name and location of facility:
Sycamore Street bridge, Arlington County, Virginia, USA.
Project start and completion dates:
August 22, 2001
Service Environment:
Temperature: -5F to +100F (-20C to 38C), snow, ice, salt and moisture.
Surface Preparation: Methods, degree of cleaning, profile:
White Metal Blast Cleaning - SSPC-SP5.
Coating application methods, equipment:
Termarust 2200 (RAVCS) Penetrant/Sealer - small squirt bottle and Termarust 2100 (RAVCS) Primer/ Topcoat - brush.
Coating system, number of coats, dry film thickness per coat, etc.:
Application of Termarust 2200 (RAVCS) Penetrant/Sealer into joints and connections and onto bearing surfaces - followed immediately with (wet on wet) application of Termarust 2100 (RAVCS) Primer/Topcoat.
Caulk coat (stripe coat) all joints and connections with 10 mils DFT Termarust 2100 (RAVCS) Penetrant/Sealer. On all bear metal and tightly adhered, contaminant free rusted surfaces apply spot prime @ 5mils DFT Termarust 2100(RAVCS) Primer/Topcoat, and then overcoat all areas with 5mils DFT Termarust 2100 (RAVCS) Primer/Topcoat.
Safety and Environmental Protection Measures:
A tarp system was used during sand blasting - to keep debris from a small stream and a bike path under the bridge.
Unusual Job conditions:
None - the bridge was easily accessible.
Evidence of good performance:
No rusting of the bearings after one year of service.
Why Termarust was used:
The County wanted a bearing coating with a 5-year warranty and an expected
25-year service life.
Owner’s Representative:
Contact: Ravinder Singh,
Company: Bridge Program Manager, Arlington County, Virginia.
Tel: 703-228-3661
Contractor:
Contact: John Korfiatis,
Company: Blastec Enterprises, Inc.
Tel: 410-633-7070
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