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Re: Vapor Barrier

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I probably didn't understood your explanation, however, although I have seen both ways done without obvious detriment to the slab, wouldn't it be desirable to have the water contained for the concrete to cure rather than the sand taking it away?
(this is meant as a point of discussion and not necessarily my opinion)

Thor A. Tandy   P.Eng.,  MCSCE
Victoria, BC, Canada
e-mail: <vicpeng(--nospam--at)>

-----Original Message-----
From: raranous(--nospam--at) <raranous(--nospam--at)>
To: seaint(--nospam--at) <seaint(--nospam--at)>
Date: Tuesday, October 13, 1998 9:00 PM
Subject: Re: Vapor Barrier

>For what it's worth!  I have always ...  typical response from me:  1)
>I would explain that the sand absorbed the water migrating from the concrete so
>it cured from top and bottom; and 2) now you can ...