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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>My exterior raised deck is a 1-1/2” concrete slab –
5’x 6’ rebar reinforced panels cast in place on 4x4” concrete
beams and has been in place for about 15 years without any rotting. Like
ferrocement boats though I do expect the reinforcement to rot out eventually.
Fiberglass rebar would be a more permanent solution.<o:p></o:p></span></p>
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<p class=MsoNormal><b><span lang=EN-US style='font-size:10.0pt;font-family:
"Tahoma","sans-serif"'>From:</span></b><span lang=EN-US style='font-size:10.0pt;
font-family:"Tahoma","sans-serif"'>
greenbuilding-bounces@lists.bioenergylists.org
[mailto:greenbuilding-bounces@lists.bioenergylists.org] <b>On Behalf Of </b>Alan
Abrams<br>
<b>Sent:</b> April 8, 2011 10:06 AM<br>
<b>To:</b> Green Building<br>
<b>Subject:</b> Re: [Greenbuilding] fireproof light deck<o:p></o:p></span></p>
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<p class=MsoNormal>(ie I sort of doubt that thinset has much resistance to
frost destruction due to the extremely small particle size of the fine sand
aggregate that is typically used ... maybe instead of thinset mortar you go to
the hardware store where people take their left-over exterior-grade latex paint
for safe disposal and use that with some coarse sand (ie "concrete
sand" -- particle size up to 3 mm) and cement ( ie replace the mixing
water with the recycled latex paint) to make a synthetic mortar ? How fire-resistant
is latex paint ? Dunno. )<o:p></o:p></p>
</blockquote>
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<p class=MsoNormal><br>
got me thinking--back a few years ago on this list--there was an extended
discussion about extremely thin slabs, with a rich, highly reinforced mix--a la
ferro cement boat hulls. if you could get the slab down to under, say, 1-1/2"
thick, the deck would be 20-25 psf...not an outrageous load to support with
LiteSteel beams bearing across party walls...<br>
<br>
AA <o:p></o:p></p>
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<p class=avgcert>No virus found in this message.<br>
Checked by AVG - <a href="http://www.avg.com">www.avg.com</a><br>
Version: 10.0.1209 / Virus Database: 1500/3559 - Release Date: 04/08/11<o:p></o:p></p>
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