Aggressive water on concrete
Aggressive water on concrete
(OP)
Looking at a 10 year old clearwell that has been exposed to an aggressive water with a Langlier Index of -1.3, Alk of 76 (mg/l as CaCO3), Hardness of 160(mg/l as CaCO3), and CO2 of about 50 mg/l. After 10 years the cement paste has been "dissolved" to about 1/4" in depth and only the sand remains. Has anyone seen this before and remedied the problem??





RE: Aggressive water on concrete
RE: Aggressive water on concrete
RE: Aggressive water on concrete
Have never used Xypex, spec'd it twice, but for water containment in an old concrete storage tank and in an underground elevator room that had moisture problems.
What I'd like to know, is what is the tolerable levels of CO2, etc that will not affect concrete. I.E. what are the limiting parameters to design new tanks without protection? I understand from a source at AWWA, there was a similar condition with a Langlier Index of +something that exhibited similar conditions. Thanks for the help.