Would not only the top layer draw any carbon? Just like a pan is protected from further oxidation by a thin oxide layer that forms?
posted on 03/02/2019 11:29:46 AM PST
(If the left is not screaming, you are doing it wrong.)
I can only say that whenever I've poured cement, it sets from top to bottom. Calcium carbonate all the way down.
posted on 03/02/2019 11:51:16 AM PST
(Colonel (Retired) USAFgt.)
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