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MMS- Are some unreliable with high RH?
11-07-2011, 04:16 PM,
#9
RE: MMS- Are some unreliable with high RH?
And of course the permeability of concrete can vary, but I have read that 4" of concrete has a perm rate of less than .8...

The numbers quoted for perm ratings are all over the place aren't they? Makes it hard to compare. I believe Bostik reports grams of water over 24 hrs over a square meter, and then that is at 50% RH. What does that mean? 50% difference between slab and ambient?

Koster VAP1-2000FS which I use is an average of .05 grains /hr/sf. A gram is about 15 grains....
JD Grafton
Concrete Answers for Flooring Problems
[email protected]
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RE: MMS- Are some unreliable with high RH? - CC Solutions - 11-07-2011, 04:16 PM