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conrete air content

conrete air content

conrete air content

(OP)
The pier (pedestal) of concrete footing is exposed to weather (in cold area). But the air content from cylinder test shows that there is only 3.5% air content. We want them to have 5-7% air conent.
So What's the best way to deal with this? is 3.5% acceptable?

It's will be very expensive (and will delay the schedule) to demolish the concrete and cast new one.

Any suggestions?

RE: conrete air content

Coat the concrete with asphalt mastic.

RE: conrete air content

There are clear sealers/coatings, but will be a bigger maintenance issue. If not properly applied, Ron's solution can be downright ugly.

Dik

RE: conrete air content

dik...I'm assuming the pedestals will be backfilled and not maintainable. You are correct...it will be ugly.

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