<html><head></head><body><div class="ydpbfe67087yahoo-style-wrap" style="font-family:lucida console, sans-serif;font-size:16px;"><div><div>"Danger of explosive spalling?"</div><div><b>Dear Dave,</b></div><div>i remember sitting as a child to open fire surrendered by heavy stones and the stones could give a "bang" in rare cases.<br>But in the case of such a cement-stone element, a piece of cement would only (if at all) get loose from the inside of the <span>cement-stone element.<br></span><div><span>When casting the cement-top plate covering the fire box of <br></span></div><div><span>an "adam-retort" kiln (www.biocoal.org) <br></span></div><div><span>i never came to hear about such a "<span>explosive spalling"</span></span></div><div><span><span>best</span></span></div><div><span><span>Chris ADAM<br></span> </span></div></div><br></div>
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On Thursday, April 25, 2019, 5:56:59 PM GMT+2, David Young <dyoung@pobox.com> wrote:
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<div>On Wed, Apr 24, 2019 at 10:00:49PM -0600, Ronal Larson wrote:<br clear="none">> 2. After Kevin sent me 3 short videos a few days ago, we agreed there could be great benefit to his and everybody’s stove research to get this early work out for discussion. So this is to ask everyone to view Kevin’s annotated 2 minute video on an approach I have not previously seen:<br clear="none">> <a shape="rect" href="https://drive.google.com/file/d/1EJQEKKkMTQbcKn3kBC1YZ50oqtZPsbym/view " rel="nofollow" target="_blank">https://drive.google.com/file/d/1EJQEKKkMTQbcKn3kBC1YZ50oqtZPsbym/view </a><<a shape="rect" href="https://drive.google.com/file/d/1EJQEKKkMTQbcKn3kBC1YZ50oqtZPsbym/view" rel="nofollow" target="_blank">https://drive.google.com/file/d/1EJQEKKkMTQbcKn3kBC1YZ50oqtZPsbym/view</a>>. <br clear="none"><br clear="none">Is the fire burning on a concrete slab? It's my understanding that<br clear="none">when a fire burns on ordinary concrete, there is a danger of <b>explosive<br clear="none">spalling,</b> which can injure bystanders and spread fire around. Consider<br clear="none">insulating those flames from the concrete.<br clear="none"><br clear="none">Dave<br clear="none"><br clear="none">-- <br clear="none">David Young<br clear="none"><a shape="rect" href="mailto:dyoung@pobox.com" rel="nofollow" target="_blank">dyoung@pobox.com</a> Urbana, IL (217) 721-9981<div class="ydpb7ed6d0cyqt4518459259" id="ydpb7ed6d0cyqtfd53175"><br clear="none"><br clear="none">_______________________________________________<br clear="none">Stoves mailing list<br clear="none"><br clear="none">to Send a Message to the list, use the email address<br clear="none"><a shape="rect" href="mailto:stoves@lists.bioenergylists.org" rel="nofollow" target="_blank">stoves@lists.bioenergylists.org</a><br clear="none"><br clear="none">to UNSUBSCRIBE or Change your List Settings use the web page<br clear="none"><a shape="rect" href="http://lists.bioenergylists.org/mailman/listinfo/stoves_lists.bioenergylists.org" rel="nofollow" target="_blank">http://lists.bioenergylists.org/mailman/listinfo/stoves_lists.bioenergylists.org</a><br clear="none"><br clear="none">for more Biomass Cooking Stoves, News and Information see our web site:<br clear="none"><a shape="rect" href="http://stoves.bioenergylists.org/" rel="nofollow" target="_blank">http://stoves.bioenergylists.org/</a><br clear="none"><br clear="none"></div></div>
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