July 2014 Rapid RH Newsletter – Making Sense of MVER and RH Moisture Test Results
Concrete Moisture: Calcium Chloride vs. Relative Humidity Testing
In this month’s video, Jason talks about the differences between Calcium Chloride and Relative Humidity testing.
Converting from Calcium Chloride to Relative Humidity
When looking at an architect’s specifications for moisture testing in concrete, it’s most likely that one of two moisture criteria will be indicated – calcium chloride testing (MVER) or relative humidity (RH) testing. If a contractor is familiar with one and not the other, isn’t it a reasonable question to ask if the results of one test method can be converted to meet the alternate spec?
Calcium Chloride and RH Testing Revisited
The first consideration of any concrete moisture test method is whether it’s really the best tool for the job. Two test methods, calcium chloride (CaCl) testing and relative humidity (RH) testing, are the most commonly-specified test methods in the flooring industry, but how do they compare when put side to side?