Calcium Carbide testing and Silicates

[CC Solutions]

Is this really Bill posting on here?

I am unfamiliar with carbide testing but from what I have heard of it, it is accurate for what it does.

Is the test appropriate? Not in my book.

Silicates don't shut down the concrete capillaries as they claim. This has been proven by many experts in the field, and I'm sure Lepito has proven this also. So a CaCl test reveals the MVER still coming from the slab.

The carbide test will show the amount of free water in the sample collected, I don't doubt that, and I would suspect the test parameters will instruct to only take concrete samples from the top treated horizon of the concrete where free water has been bonded by the silicate. This is all fine and good, and the carbide numbers may be rather low, but the slab still is emitting vapor as evidenced by the 2420 test.

Looking back at what I just wrote, I think I said the same exact thing as Lepito.

The fact of the matter is that these silicates were not designed to be vapor mitigation systems, they do not perform as vapor mitigation systems and there are failures when they are used as vapor mitigation systems! Testing moisture by methods unsupported by the flooring and adhesive manufacturers only serves to provide a poor claim of functionality for the silicate proponents. Smoke and mirrors if you will.