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Thursday, July 26, 2012

Why must laitance and efflorescence be removed before coating concrete?

They are not well bonded to the sound concrete beneath them.
They affect the color of the coating.
Coatings are always incompatible with these materials.
They cause blistering.

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Previous Quizzes from the Past Week

Wednesday, July 25, 2012
In its Technology Guide on the subject, what type of coating material does SSPC recommend for repairing imperfections in galvanized, organic zinc-, or inorganic zinc-coated steel?

Tuesday, July 24, 2012
What is the leading cause of pipeline failures in North America and Europe?

Sunday, July 22, 2012
True or false: There are no quantitative methods for determining levels of moisture in concrete floor slabs.

Friday, July 20, 2012
What is the main purpose of optically active pigmentation in coatings?

Thursday, July 19, 2012
When abrasive is recycled without sufficient new abrasive being added to the operating mix, what happens to the surface profile of steel being cleaned?

More previous quizzes

CHLOR*RID International Inc.

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New resins from BASF will have metals loving water:

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Axxiom Manufacturing
Schmidt Improves
Portable Blasters

Schmidt's VBS System reduces blowdown intensity, prevents exhaust from damaging floor while using no screens or filters. Reduces sound; Increasing safety.
Call 1-800-231-2085

Corrosion Probe, Inc.
From Detection to Correction

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

Atlantic Design, Inc.

what we did to this machine! Let ADI upgrade your machine, extending the life, efficiency, and value. Any make. Like new, but better! 866.Call.ADI

NLB Corporation
NLB Sure Shroud: Greater Protection and Flexibility

NLB’s Sure Shroud’s lighter weight and flexibility reduces operator fatigue and offers unmatched protection against high pressure hose ruptures. 10k to 40k psi rated.

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