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Re: Slab-on-grade

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A word of caution - be careful of curling of the slab.  I have heard so many
arguments pro and con for vapor barriers and different details to stop moisture
that it becomes very contrdictory.

Harold Sprague wrote:

> I have a slab-on-grade on which a seamless adhered floor covering is to be
> applied.  The manufacturer requires a moisture content of about 2% prior to
> installation.
> Is there any way to drive the moisture content that low in about 2 months
> time?
> We are placing a vapor barrier and have other details to mitigate ground
> water.  My concern is the water that will be in the concrete.  Our current
> mix has a w/c ratio of about 0.47.
> The only other choice is a surface applied sealant that could trap water
> vapor within the slab.
> Comments and solutions are welcomed.
> Regards,
> Harold Sprague
> The Neenan Company
> harold.sprague(--nospam--at)