Concrete Curing
Concrete Curing
(OP)
Is Oxygen used in the concrete curing process? I am trying to determine the cause of low oxygen concentration in a new concrete manhole. Oxygen concentration was 2% and C02 concentration was 8% in a manhole that was three weeks old.





RE: Concrete Curing
ftp://imgs.ebuild.com/woc/C710279.pdf
www.SlideRuleEra.net
RE: Concrete Curing
Considering the levels you have noted, I would also check the instrument to see if it is reading properly. Two percent oxygen is extremely low. Have you checked for volatiles (methane, etc.)?
Also....try not to "double post" in the forums. This is the appropriate forum for your question, but it is also posted in the ACI Code Issues forum (which it is not).
RE: Concrete Curing