Adhesives and Moisture

[Ernesto]

Food for thought:

A little tidbit I found in some lit:

302.2R-18 ACI COMMITTEE REPORT

"shown that the adhesive strength decreases with an increase
in the concrete’s MVER. When these tests were conducted,
however, there were no criteria for acceptable bond strength,
and scatter in the test results did not indicate a clear dividing line
between acceptable and nonacceptable adhesive bond strength.
A report on recent testing that attempted to correlate moisture
in the concrete with floor covering performance concluded
that: “The evidence presented suggests that there is no
relationship between the relative humidity of a concrete base
or screed and adhesion of resilient floor coverings” (The
Concrete Society 2004).
While moisture criteria are often used, the relationship
between these criteria and floor covering performance is not
well understood."