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Re: Slab on Grade and the Green Code[Subject Prev][Subject Next][Thread Prev][Thread Next]
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- Subject: Re: Slab on Grade and the Green Code
- From: Daryl <h.d.richardson(--nospam--at)shaw.ca>
- Date: Fri, 06 Dec 2013 14:13:33 -0700
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Fellow engineers,I have a couple of comments I would like to make even at the risk of exposing my ignorance.
Codes that I have read require 3" couver for reinforcing when concrete is placed against ground and only 2" (or in some codes for some reinforcing sizes only 1.5") when placed against fromwork for corrosion proection of the reinforcing. My interpretation in the past has always been that the poly vapour barrier constitutes "formwork" and the absence of poly or having sand on top of it would be considered "ground", hence, the minimum thickness of a slab-on-grade can be impacted by a full inch (or even more) by placing sand on top of the poly.
Of course I have no vested interested interest in any of your responses to my observations but I would find them interesting non-the- less.
Regards to all, Daryl On 06/12/2013 12:15 PM, Ricardo Gonzalez wrote:
I second that. This conversation (sand/vapor barrier) has flared up somany time here in our office. Too many times to count. I have downloaded all the attachments and now I have to force myself to review them. And, more importantly, implement them effectively in our slab design/drawings. Thanks.Ricardo G. Gonzalez, P.E. C S W | S T 2 CSW/Stuber-Stroeh Engineering Group, Inc. 45 Leveroni Court, Novato, CA 94949 Civil Engineering ∙ Structural Engineering Planning ∙ Land Surveying & Mapping main: 415-883-9850 fax: 415-883-9836 direct: 415-884-6442 e-mail: RicardoG(--nospam--at)cswst2.com links: Web Site ∙ Blog ∙ LinkedIn ∙ Facebook ∙ Twitter “This message is intended solely for the recipient identified above and should not be opened, read, or utilized by any other party. This message
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