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RE: Slab-on-grade

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I would suggest using a superplasticizer with ¾" aggregate and cutting w/c
to 0.375 

	-----Original Message-----
	From:	Harold Sprague [SMTP:harold.sprague(--nospam--at)neenan.com]
	Sent:	Tuesday, November 17, 1998 2:47 PM
	To:	'seaint(--nospam--at)seaint.org'
	Subject:	Slab-on-grade

	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)neenan.com