Determining When To Coat Concrete

From JPCL, December 2020

By Manuel Najar, V&A Consulting Engineers, Inc.

Several water and wastewater treatment owners have been confronted with the effects of biogenic corrosion and chemical deterioration of concrete in their concrete structures. Several assessment methods can be used to determine the existing condition of a coated or uncoated concrete structure and identify the type and extent of deterioration. This paper will identify some of the most important indicators of biogenic corrosion and chemical deterioration of concrete, with a few examples from different areas of the water and wastewater treatment process....


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Comment from Regis Doucette, (1/11/2021, 1:21 AM)

Thanks for your thorough review with salient points throughout. I appreciate your efforts here because too often coating specialists minimize the importance of the topics you discussed herein which ends up costing the owners and the public for their short-sightedness.


Comment from HECTOR MEDINA, (1/17/2021, 12:40 PM)

Great article. It is really difficult to cover all aspects of concrete coating. Each project offers a new challenge. For example, for the case of overcoating, I think that it is quite important to determine the cause of failure in case of the presence of any deffect. Also if there are differents linings applied, to well design transitions between areas.


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