| Connect Follow us on Twitter Like us on Facebook
About | Subscribe | Advertise


Download our free Bridge Coating Systems eResource Book

The contractor who almost got floored

From JPCL, May 2013

More items for Coating Application

by Raymond S. Tombaugh, PCS, KTA-Tator, Inc. and Richard A. Burgess, PCS, Series Editor

(Login to read the full article)


Tagged categories: Case History; Coating failure; Concrete; Concrete defects; Concrete floor coatings; Failure analysis; Floor coatings; Floors

Comment from Jorge Servin, (6/3/2013, 5:07 PM)

Thank you for sharing with us your experiences. I found your article very interesting but it left me with some doubts. 1.- If the blistering problem was caused by the ASR of the aggregate ,how can we be sure that it will not happen again since the moisture will continue to be present in the slab? 2.- What was the previous clear coating condition? Does it show the same blistering problem? if not, it may be because it was very thin or permeable and allowed the moisture to flow to the exterior of the slab. 3.- If the presence and/or flow of water moisture created or contributed to the ASR , wouldn't it be a good choice to change the approach to the use of permeable or semi-permeable coatings systems, or to a polished concrete flooring system? Thank you.

Comment from Michael Quaranta, (6/3/2013, 6:30 PM)

I have a lot of respect for the JPCL publication and the standard technical approach of the articles. I caught this article in the latest issue with some questions regarding the analysis. I reviewed an epoxy blistering project in El Centro, California that was interesting. The one aspect that was similar was the blistering shown in this article. To me that only proves that the epoxy has good elongation and that a suitable MVE coating was not applied and that leads to still another technical specification condition. Who specified the CSP (ICRI-Concrete Surfaces Profile) and was the proper equipment used to achieve the profile. I'd sure like to know the location of this F-Files Floor and an opportunity to propose a warranted fix for that problem without using those "empty the bucket" Hi-VOC coating products. This concrete coating has all of the required ASTM Test results, millons of square feet installed, including a Certified Permeance Test Report for WVT and for a pure quality of product proof an installed concrete coating in a shellfarm facility on the beach in Hawaii (7- years and still no sign of any claim or failure).

Comment from brian ofarrell, (6/4/2013, 7:36 AM)

Why is it that we wait for a failure to call in an inspector for concrete coatings. On steel the inspectors are in the contractors face. Not saying that an inspector would have prevented this problem but the article leaves questions of the validity of the MVT tests done.

Comment from Bonny Njimogu, (8/3/2013, 6:39 AM)

Thanks to JPCL and team of Raymond and Richard.The case od the wharehouse floor blisters and defects was embarassing both to fhe parties involved and the readership in general.However,the laboratory findings as reported have averted buck passing.A critical path to watchout for have been unveiled.MVT and ASR orAAR (Alkkhali Aggregate Reaction might be contributory to the tthe coating failure.I share the same view.From experience,wherever reactive aggregates are encountered whether indoor or exposed structures reacts with the atmosphere and moisture causing popouts,surface stains and unsightly blemishes. On indoor floor substrates where vapour barrier is used to prevent moisture transmission,reactive aggregates tend to shrink in the absence of moisture thereby resulting to difrential shrinkage/movement in the substrate.Simple tests like chloride/silt could be carried out on suspected aggregates to detect reactive impurities/clayey content befote large quantity is approved for flooring and other works. From Bonny Njimogu. I

Comment Join the Conversation:

Sign in to our community to add your comments.

Commercial Sand Blasting & Painting Ltd.
Reliable Service & Superior Workmanship

We’re ready to meet any of your protective coating and lining needs. We can work on your site or in our facilities, with large shops (60,000 sq ft), 40 acres of yard space, and cranes and forklifts on site.

Nationwide Overspray
Profession Overspray Removal Services

The Finest Name in Safe Overspray Removal. We specialize in removing all contaminants from any surface. Family Owned and Operated for 33 years! Fully insured. Satisfaction is guaranteed.

SSPC: The Society for Protective Coatings
SSPC 2016 Register Now!

SSPC2016 is earlier this year, don't forget to book your plane tickets and hotel. See you soon. For more information visit

Graco Inc.
Graco Mortar Pump

The M680 sprays epoxy-based mortars, anti-skid coatings, cementitious and filled materials. Compact.
Easy to use.
Call 877-844-7226 or

AW Chesterton
ARC Protective Coatings

perform reliably under the most demanding exposures in the toughest process conditions. Use our Coating Selector Tool for your application needs at

Corrosion Probe, Inc.
From Detection to Correction

Corrosion Probe, Inc. has the Most Concrete Coatings Experience and Expertise. Contact us today at

New resins from BASF will have metals loving water:

Excellent corrosion resistance, low VOC, high gloss, thin films

SAFE Systems, Inc.
Enduroguard -
The Tough Cable
for a Tough Industry.

Reduce maintenance costs and down time, increase job site safety with Enduroguard Cable. Available exclusively from SAFE Systems. UL listed, flexible, abrasion resistant and cut resistant.

US Minerals
US Minerals -
Black Magnum

With nationwide production and distribution capabilities, U.S. Minerals supplies a complete range of coal slag and other abrasives to meet all of your blasting needs.

U.S. Zinc
Zinc. Quality With U.S.

We provide a superior experience to each of our customers. Through added infrastructure, we have become a fully integrated REACH-registered supplier.

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   |   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