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

 

Download our free e-book! Corrosion Under Insulation. Sponsored by Thermion.

Problem Solving Forum

| More

May 7 - May 13, 2012

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


Selected Answers

From Glenn Summers of ConselcoR, Inc. on May 15, 2012:
     In the case of a pipeline, the pipe being confined within a high pH environment will not corrode, providing the depth of cover is sufficient and steps are taken to maintain the passivating layer by preventing contaminants from entering the matrix. In a Low/No moisture environment, we have also removed one of the four essentials necessary for corrosion. A concrete that is stabilized will afford protection to both the concrete and the steel. This approach will protect both while knowing that service conditions may change with time. I consider that a protected structure will allow for accidents, incidents and all types of abuse during it's life cycle. A citrus processing facility may be converted to a battery manufacturing use with a new owner. We, as professionals, must take all exposure events into consideration when longevity of the structure is job one!

From Joe Isbell of SAWS on May 10, 2012:
     In the pipeline world, concrete surrounds a steel cylinder, on both exterior and interior. The concrete provides corrosion protection to the steel by increasing the pH.

From Carl Thompson of Hill Brothers on May 10, 2012:
     I would have to know what I am protecting it against, such as weather, acid or alkaline environment, oil and grease, etc.

From Glenn Summers of ConselcoR, Inc. on May 7, 2012:
     The most effective way is to provide a No/Low moisture interior environment to increase the resistance of the electrolyte to the flow of electrons associated with the electrochemical reaction of a corrosion cell. At the same time a sealed and stablilized concrete surface stops carbonation to maintain the high pH concrete surrounding the embedded steel. The optimum application window is a new concrete to waterproof and keep the 13.2 pH intact! With the application of a stabilizing material, we are able to stabilize the concrete matrix to provide a solid within the gel/pore capilarry system and prevent any contamination of the interior. At the same time we prevent internal chemistry from migrating out to the surface to react with an atmosphere. With this application we also create a surface ready to receive a protective or decorative coating that experiences far superior adhesion and spread rates.Aged concretes are candidates for treatment as long as they have the ability absorb the stabilizing material into the matrix. The product is topically applied with a low pressure spray followed by a back roll to increase dwell time and depth of penetration. At that point, both the concrete and steel are protected!

Please sign in to submit your answer this question    

Tagged categories: Concrete; Corrosion protection; Steel


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

Novetas Solutions
Safer Abrasive! 100% Recycled Glass!

NO Free Silica, Beryllium or other human Toxins! Great White Metal Finish and safer than Slags!
Call us at 866-775- 6226


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


NACE International, The Corrosion Society
Refresh Your CP Skills

With this 12-station, interactive program, practice your CP skills online by working through step-by-step, real-life testing scenarios.


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


DRYCO
Humidity & Temperature Control Equipment

Rental Desiccant Dehumidifiers, ArcticDRY Units, Air Conditioners, Heaters and Generators to help control the climate on your next industrial painting project. Nationwide locations, 24/7 service: (866) 379-2600 www.drycogroup.com”


CS Unitec
Remove Coatings, Corrosion & More!

For metal & concrete. Scalers, scabblers, deck hammers & scarifiers. Safe for hot work zones. Call our specialists: 800-700-5919.
Demo videos at www.csunitec.com.


Jotun Paints Inc.
Jotachar JF750 - The Time Saving Solution

The only mesh free solution for jet fire scenarios. Jotachar saves installation time and material costs - the next generation of epoxy passive fire protection.


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


Clemco International GmbH
Global engineering-trusted solutions

For more than 70 years, Clemco has provided the highest quality blast equipment with a total commitment to comfort and safety.

 
 
 
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