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

 

Problem Solving Forum

| More

July 9 - July 15, 2012

What are the most effective procedures for protecting steel and adjacent concrete together?


Selected Answers

From William Slama of International Paint/Ceilcote Products on July 9, 2012:
     It is first assumed that appropriate coating or lining systems have been selected for the specific application for each substrate and that the surface prep for each is correct. In many cases, one system may be suitable for both substrates. Basically, there is only one major consideration - differential movement! First, from the engineering standpoint, all practical means should be employed to minimize differential movement betewwn the two substrates. That could include protruding "pins," welded rebar, or special bonding agents. Correct treatment notwithstanding, it is reasonable to expect at least minor movement between the two caused by temperture changes as well as variable loading. Simple unreinforced coatings have essentially no capability to withstand the movement between the two substrates, so consequential cracking can be expected. When a reinforeced system will be applied, some limited (5-20 mils) movement can be tolerated. That can be enhanced by applying a band of flexible material under the reinforced lining straddling the substrate connection. That is sometimes referred to a "bridge joint" or a "hinge joint " if it is in a corner. Even those have limited movement capabilities, probably 30-50 mils,even more for a "hinge joint." Where more movement must be tolerated, a groove must be constructed between the two and a classical "expansion joint" should be applied after bringing the coating or lining system(s) down into each side of the joint.

Please sign in to submit your answer this question    

Tagged categories: Concrete; Steel


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

Specialty Products, Inc. (SPI)
Polyurea & Polyurethane Spray Foam Training

SPI is committed to industry leading technical training for polyurea & polyurethane spray foam professionals. Attendees receive hands-on, in-depth training for using and troubleshooting plural-component equipment, spray guns, machine hoses & parts.


SAFE Systems, Inc.
Portable Blast &
Recovery Equipment

Trailer or skid mounted blast and recovery equipment. Systems designed for maximum versatility, environmental compliance
and overall cost savings.
Call 1-800-634-7278


Industrial Vacuum Equipment Corp.
Hurricane Vacuums
& Dust Collectors

Vacuum and dust collector hose, filters and related accessories.
IndustrialVacuum.com


Desco Mfg. Co., Inc.

Dust - Free Surface Prep
Made EASY!

Efficient-Fast clean/remove
Advanced Containment
Safe - Well Below OSHA
Yes! - Innovative Solutions!
DESCO Mfg.Co., Inc.
www.descomfg.com
800-337-2648


Corrosion Probe, Inc.
From Detection to Correction

Corrosion Probe, Inc. has the Most Concrete Coatings Experience and Expertise. Contact us today at
860-767-4402, www.cpiengineering.com


BASF
New resins from BASF will have metals loving water:

Excellent corrosion resistance, low VOC, high gloss, thin films basf.us/industrialcoatings
polyorders@basf.com
800-231-7868


HoldTight Solutions Inc.
NO FLASH RUST - NO CONTAMINANTS

Our HoldTight®102 salt remover & flash rust
preventer prevents flash
rust by removing surface contaminants. Contact us
for your nearest distributor.
(800) 319.8802 sales@holdtight.com


Mitsubishi Gas Chemical America
Performance Amine 1,3-BAC

A highly reactive cycloaliphatic diamine offering superior performance. Reasonable cost and curing efficacy makes it suitable for all types of epoxy resin applications.


Tarps manufacturing, Inc.
QUALITY MADE IN AMERICA —Available near you!

CLICK to get a behind-the-scenes look at how Tarps Manufacturing makes the highest-quality tarps right here in the USA — available nationwide.

 
 
 
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 2000-2016, 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