June 29 - July 3, 2020

The United States Geological Survey released last month its first map of where the mineral pyrrhotite could occur in the nation. Pyrrhotite is a mineral that consists of iron and sulfur. When exposed to water and air, it can break down to form secondary minerals that expand and crack concrete, causing concrete structures to fail. Do you think the map will benefit future residential construction efforts?

Answers Votes
Yes. 83%
No. 8%
Other (Please respond in the comments). 8%

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Tagged categories: Asia Pacific; Concrete; concrete; Concrete defects; Concrete Q + A; EMEA (Europe, Middle East and Africa); Latin America; North America; Residential Construction; Residential contractors; Z-Continents

Comment from Greg Celeskey, (7/1/2020, 10:05 AM)

The map is a great first step, but quality control testing is a key element.

Comment from Michael Halliwell, (7/2/2020, 11:42 AM)

Greg, you hit the nail on the head. Just like with radon potential maps, it gives you advanced notice that it might be there...but you still have to test to ensure that the stuff you don't want in your new construction is kept out.

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