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Concrete porosity test

Concrete porosity test


The floor covering industry utilises substrate porosity tests. Could the resin flooring industry also benefit from these simple tests?

I was reading the ASTM 3191-16 porosity test method as used and recommend for the floor covering industry. The test is simple enough and the concept of knowing that a surface is "porous" seems important. So why would the resin flooring industry not adopt the test, or at least use it in conjunction with other methods for determining if a substrate is suitable for coating?

Below is a little variation of the test using three different test liquids. Technically I should have used a pipette with a single drop applied to the substrate, but for the purposes of this discussion this method will do.



The discussion of the test starts to evaluate if the test is suitable for resin flooring:


So, what are your thoughts? Would it help to conduct porosity tests on each prepared concrete slab? Could it be misleading?




Jack Josephsen

Jack (ResinJack) Josephsen has spent over 20 years in the resin flooring industry. He has a proven track record of industry change and improvements


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