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August 17 - August 21, 2020

What types of measures can be taken on or around metal pipes or columns that penetrate concrete or asphalt paving to reduce corrosion at the interface?


Selected Answers

From Wayne Senick of Termarust technologies Inc. on August 25, 2020:
Most standard barrier systems micro-crack and have no activity, especially the ability to neutralize acid. A solution we have seen in the field is to use a chemically active alkaline coating (acid neutralizer) near the interface and then cover the wet coating with tar paper if immediate back-fill is required to protect the coating from the dirt, concrete or asphalt. Cheap and quick but addresses the problem with the right chemistry.

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Tagged categories: Asia Pacific; Corrosion; EMEA (Europe, Middle East and Africa); Good Technical Practice; Latin America; North America


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