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Re: sand layer under slabs - was ACI or CRSI question-answer center

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Is this true?  Is the sand layer no longer recommended?

Kenneth S. Peoples, P. E.
Lehigh Valley Technical Associates
1584 Weaversville Road
Northampton, PA 18067-9039
Phone: (610) 262-6345
Fax: (610) 262-8188
e-mail: kpeoples(--nospam--at)lvta.net

----- Original Message -----
From: "Roger Davis" <rdavis(--nospam--at)sdsarch.com>
To: <seaint(--nospam--at)seaint.org>
Sent: Tuesday, November 05, 2002 8:06 AM
Subject: RE: ACI or CRSI question-answer center


> Scott,
> That warm fuzzy feeling is what I wanted.  Questions seldom come up until
> you need an answer.  I want immediate feedback so I can continue with the
> work that brought up the question.  The answers that you and others
> contribute on this list have confirmed some of my opinions and made me
> change my mind on some things and educated me on many others - they seldom
> come with any authority like a ruling from an ACI committee  but that
> doesn't bother me. I judge for myself whether or not to accept them - just
> like I did with the old ACI Committee recommendation to place a sand lift
> under a concrete slab on grade. I think it was only appropriate under
> special circumstances even though the committee recommended it for years
> until they recently reversed themselves.
>
> Roger C. Davis
> Architect
> SDS Architects, Inc.
>
> -----Original Message-----
> From: Scott Maxwell [SMTP:smaxwell(--nospam--at)engin.umich.edu]
> Sent: Monday, November 04, 2002 5:05 PM
> To: seaint(--nospam--at)seaint.org
> Subject: RE: ACI or CRSI question-answer center
>
> To clarify what Jay wrote below...
>
> What he states is absolutely correct if you want an "official"
> interpretation of something in an ACI document.
>
> On the other hands, if you want the opinion of an INDIVIDUAL who was
> involved with the creation of that document, then members of committee's
> can give their own opinion.  The key is that it is the opinion of that one
> individual, NOT an official opinion in any way.  It may be that opinion is
> correct and co-insides with what the official interpretation would be if
> rendered.  The end result is that getting the opinion from an individual
> committee member or an ACI staff member (or staff member from CRSI, PCA,
> PCI, etc) may give you a warm fuzzy feeling, but it is more or less worth
> what you paid for it (i.e. nothing) if you want to use it in any form of a
> legal or substantive arguement.
>
> So, to use Roger's example, the answer he got was only useful to give him
> a warm fuzzy feeling.  Even though it came from a member of the 318
> committee, it was not in anyway an official answer or a respresentation of
> what was actually meant other than that individual's opinion.
>
> FYI, ACI staff member when they do respond to technical inquiries will
> sometimes contact committee members to see if one is willing to get an
> opinion.  Not only does this potentially get a more authoritative (notice
> the adj.) for the person asking the question, it can also point out to the
> committee where there are some items of confusion that may need
> clarification in the next iteration of the document.
>
> HTH,
>
> Scott
> Ypsilanti, MI
>
>
>
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