PaintSquare.com
      | Connect Follow us on Twitter Like us on Facebook
About | Subscribe | Advertise
  

 

Download the FREE Equipment and Rental Resource Guide

Problem Solving Forum

| More

May 12 - May 16, 2014

When we use field splice plate connections on structural steel projects, how do we prevent rust and rust staining at bolt heads and at the splice plate/steel interface?



More items for Quality Control


Selected Answers

From Tom Schwerdt of Texas Department of Transportation on May 14, 2014:
Prime all structural steel, including faying surfaces with IOZ. Use A325 galvanized bolts. After installation, finish with your preferred midcoat and topcoat. In high-corrosion areas, consider stripe coating. Alternately, design the whole structure with weathering steel or ASTM A1010 as appropriate, with details such as drip tabs and/or bearing pans to prevent staining of the substructure.

From James Albertoni of CA Department of Water Resources on May 12, 2014:
A good approach would be to power-tool clean or blast the surfaces then use a sealant (compatible with the steel coating system) at the splice plate interface. Then apply a brush coat to the the interface and the the bolt heads. Then, lastly, apply the steel coating system over the entire splice plate assembly. All to often, though, we see the steel guys just slap some paint over it and call it good.

From Karen Fischer of Amstar of Western New York, Inc. on May 12, 2014:
On the vast majority of projects I've worked on that require this type of work, the replacement steel is required to come to the jobsite primed (or will be cleaned to SP-6 minimum and primed in the field). The interface (existing steel onto which it will be placed) is generally remediated for salts, cleaned to a minimum SP-6, and primed with a zinc primer (as specified) with the necessary slip co-efficient. A caulking material is used beneath the plate that is compatible with the coating system and is applied to reduce water infiltration under the slice plate after installation. Then the entire repair area receives the remainder of a zinc/epoxy/Urethane coating system, including the bolt heads.

Please sign in to submit your answer this question    

Tagged categories: Corrosion; Steel


Current PSF Question | Submit a PSF Question | Full PSF Archive

Elcometer, Inc.
Durability & Design meet
Performance & Reliability

Elcometer 319 Dewpoint Meter
View the technical data on the Elcometer Dewpoint meter.


Fischer Technology Inc.
MP0R with rotating display screen

View your coating thickness readings from any angle with rotating display screen. New graphic display with easy menu navigation. Click for Video
Call 800-243-8417


KTA-Tator, Inc. - Corporate Office
KTA Analyzes
Coating Failures

• Field Diagnosis
• Lab Diagnosis
• Determination of Cause
• Recommendations
www.kta.com
800-245-6379


Termarust Technologies
Termarust (HR CSA) Chemically Stops
Active Corrosion

Truss bridge treated in 2000 with Termarust's (HR CSA) field-proven rust mitigation system chemically stopped corrosion, crevice corrosion & pack rust.


U.S. Zinc
Historic Reliability. Innovative Performance.

The reliable protection properties of our zinc dust help combat deterioration and corrosion in your paints and coatings. U.S. Zinc - Helping the world work™


Bullard

The Next Generation
of Blasting

• Lightest
• Coolest
• Most Comfortable
• Most Dependable


Abrasives Inc.
Check our Prices for Blast Abrasives

Faced with higher abrasive costs? We invite you to call & check our rates on Black Magic® coal slag and other quality blast materials. Abrasives Inc. 800-584-7524


CS Unitec
Surface Prep & Material Removal

CS Unitec’s Floor Planers remove coatings & corrosion from concrete & metal surfaces. Produce keyed profiles for waterproofing applications. info@csunitec.com


Safway Services
Suspended Access Made Easy With QuikDeck™

The smart choice for suspended access, QuikDeck’s interchangeable, lightweight components make them easy to set up and reassemble when you need to move.

 
 
 
Technology Publishing

The Technology Publishing Network

The Journal of Protective Coatings & Linings (JPCL) PaintSquare
Durability + Design Paint BidTracker

 
EXPLORE:      JPCL   |   PaintSquare News   |   Interact   |   Buying Guides   |   Webinars   |   Resources   |   Classifieds
REGISTER AND SUBSCRIBE:      Free PaintSquare Registration   |   Subscribe to JPCL   |   Subscribe to PaintSquare News
MORE:      About PaintSquare.com   |   Privacy policy   |   Terms & conditions   |   Site Map   |   Search   |   Contact Us
 

© Copyright 2000-2015, Technology Publishing / PaintSquare, All rights reserved
2100 Wharton Street, Suite 310, Pittsburgh PA 15203-1951; Tel 1-412-431-8300; Fax 1-412-431-5428; E-mail webmaster@paintsquare.com