<div dir="ltr"><br><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">---------- Forwarded message ---------<br>From: <b class="gmail_sendername" dir="auto">Lars Keller</b> <span dir="auto"><<a href="mailto:larskeller@gmail.com">larskeller@gmail.com</a>></span><br><span style="color:rgb(255,0,0)">Date: Wed, Jan 22, 2020 at 6:09 AM</span><br>Subject: Strength parameters for earthen slabs ?<br>To: Global Straw Building Network (private, with public archives) <<a href="mailto:GSBN@sustainablesources.com">GSBN@sustainablesources.com</a>><br></div><br><br><div></div><div><div class="gmail_quote"><div><div class="gmail_quote"><div link="#0563C1" vlink="#954F72" lang="DA"><div><b>Help wanted regarding strength parameters for earthen slabs.</b></div><div dir="auto"><br></div><div dir="auto">We are trying to get permission for a family house where instead of a concrete slab we will use a local product consisting of 0-8mm sand particles with clay.</div><div dir="auto"><br></div><div dir="auto">We have used it in many buildings, it works, but we have never documented it officially.</div><div dir="auto"><br></div><div dir="auto">I have asked the engineer what exactly he needs to sign this off in a legal manner.</div><div dir="auto"><br></div><div dir="auto">Can anyone help ?</div><div dir="auto"><b>Best, </b>Lars Keller</div><div dir="auto"><br></div><div dir="auto">PS: here is a link to the analysis of the earthproduct we use:</div><div dir="auto"><br></div><div dir="auto"><div><a href="https://smallplanetdk-my.sharepoint.com/:b:/g/personal/kontakt_smallplanet_dk/Eek52hjfts5GsgBu7gU4PBYBGfg4JE9r8T7RHoxcsuqyhw?e=5etIzb" target="_blank">https://smallplanetdk-my.sharepoint.com/:b:/g/personal/kontakt_smallplanet_dk/Eek52hjfts5GsgBu7gU4PBYBGfg4JE9r8T7RHoxcsuqyhw?e=5etIzb</a></div><br></div><div dir="auto">- - -</div><div dir="auto"><br></div><div dir="auto">Earthen floors<br>
<p class="MsoNormal"><span lang="EN-US">A single-family house is designed where the usual concrete slab is replaced with an earthen (clay) floor laid on top of a layer of crushed seashells used as insulation. Our main issue is how well this earthen floor can
be used to transfer horizontal wind forces, as these are usually transferred by a concrete slab.<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">Regarding this we have a couple of questions:<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">What strength parameters do we have for these kinds of floors? - Such as the characteristic compressive strength, Youngs’ modulus etc.<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">Can the earthen floor slab be assumed to work as a diaphragm like a concrete slab, or is it unable to transfer horizontal forces?<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US"><u></u> <u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">We have provided a sketch of what we mean by the horizontal wind being transferred through the slab<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">If you have any questions or there are any unclarity in our questions, please call at
<span style="color:red">40138786.</span><u></u><u></u></span></p>
<p class="MsoNormal"><img src="cid:16fcd0ea9334cd34f0f1" style="width:450px;max-width:100%"><span lang="EN-US"><u></u><u></u></span></p>
<p class="MsoNormal"><span style="color:#44546a"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="color:#44546a"><u></u> <u></u></span></p>
<div dir="auto">
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black">Med venlig hilsen</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:gray">
</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#44546a">/ Kind Regards</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:gray"><u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-family:"Arial",sans-serif;color:gray"> </span><span style="font-size:12.0pt;font-family:"Arial",sans-serif;color:gray"><u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:18.0pt;font-family:"Arial",sans-serif;color:#58595b">Jakob Keller</span><span style="font-family:"Arial",sans-serif;color:gray">
<br>
</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#fba61a">ingeniør MMT, bygherrerådgiver og medindehaver</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:gray">
<u></u><u></u></span></p>
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black" lang="DE">E:
</span></b><span style="color:#44546a"><a href="mailto:jk@rbas.dk" target="_blank"><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:blue" lang="DE">jk@rbas.dk</span></b></a></span><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:gray" lang="DE">
<br>
</span></b><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black" lang="DE">M: +45 2297 7222</span></b><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:gray" lang="DE">
<u></u><u></u></span></b></p>
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:gray"><img src="cid:16fcd0ea933155f77112" alt="Emailsignatur med tekst-ny" style="width:178px;max-width:100%" border="0"></span></b><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:gray" lang="DE"><u></u><u></u></span></b></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:gray">Se vores hjemmeside på
</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#44546a"><a href="http://www.reeholm-bredahl.dk/" target="_blank"><span style="color:blue">www.reeholm-bredahl.dk</span></a><u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:gray">For beskrivelse af vores behandling af persondata henvises til vores
<a href="https://www.reeholm-bredahl.dk/persondata/" target="_blank"><span style="color:blue">hjemmeside</span></a>
</span><span style="color:#44546a"><u></u><u></u></span></p>
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<p class="MsoNormal"><span style="color:#44546a"><u></u> <u></u></span></p>
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</div></div>-- <br><div dir="ltr" data-smartmail="gmail_signature">Small Planet smba<br>En sundere, smukkere og mere robust fremtid - sammen.<br><br>T: 20240505<br>M: <a href="mailto:kontakt@smallplanet.dk" target="_blank">kontakt@smallplanet.dk</a><br>W: <a href="http://www.smallplanet.dk" target="_blank">www.smallplanet.dk</a><br>CVR 34725403<br><br><a href="https://www.google.com/maps/search/Friland+12B+8410+R%C3%B8nde+Danmark?entry=gmail&source=g" target="_blank">Friland 12B</a><br><a href="https://www.google.com/maps/search/Friland+12B+8410+R%C3%B8nde+Danmark?entry=gmail&source=g" target="_blank">8410 Rønde</a><br><a href="https://www.google.com/maps/search/Friland+12B+8410+R%C3%B8nde+Danmark?entry=gmail&source=g" target="_blank">Danmark</a><br>--</div>
</div></div>-- <br><div dir="ltr" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><b style="font-family:arial;font-size:small">Kontakt-info</b><span style="font-family:arial;font-size:small"><br></span></div><div dir="ltr"><span style="font-family:arial;font-size:small">skype</span><span style="font-family:arial;font-size:small"><br></span></div><div dir="ltr"><span style="font-family:arial;font-size:small">jomorandin</span><span style="font-family:arial;font-size:small"></span><span style="font-family:arial;font-size:small"><br></span></div><div dir="ltr"><span style="font-family:arial;font-size:small">lars.friland</span></div><div dir="ltr"><a href="mailto:jomorandin@gmail.com" style="font-family:arial;font-size:small;color:rgb(17,85,204)" target="_blank">jomorandin@gmail.com</a><span style="font-family:arial;font-size:small"></span></div><div dir="ltr"><a href="mailto:larskeller@gmail.com" style="font-family:arial;font-size:small;color:rgb(17,85,204)" target="_blank">larskeller@gmail.com</a><h1><div style="font-size:13px;font-weight:normal"><span style="font-family:arial;font-size:small">Home </span><a value="+4586680505" style="font-family:arial;font-size:small;color:rgb(17,85,204)">+45 8668 0505</a></div><div style="font-size:13px;font-weight:normal"><span style="font-family:arial;font-size:small">Jo </span><a value="+4523900924" style="font-family:arial;font-size:small;color:rgb(17,85,204)">+45 2390 0924</a><span style="font-family:arial;font-size:small"> (mobile/handy)</span></div><div style="font-size:13px;font-weight:normal"><span style="font-family:arial;font-size:small">Lars </span><a value="+4520240505" style="font-family:arial;font-size:small;color:rgb(17,85,204)">+45 2024 0505</a><span style="font-family:arial;font-size:small"> (mobile/handy)</span></div><div style="font-size:13px;font-weight:normal"><span style="font-family:arial;font-size:small"><br></span></div><div style="font-size:13px;font-weight:normal"><span style="font-family:arial;font-size:small">Jo Morandin, Jamilla, Asger & Lars Keller</span></div><div style="font-size:13px;font-weight:normal"><span style="font-family:arial;font-size:small">Friland 12 B</span></div><div style="font-size:13px;font-weight:normal"><span style="font-family:arial;font-size:small">8410 Rønde</span></div><div style="font-size:13px;font-weight:normal"><span style="font-family:arial;font-size:small">Danmark</span></div><div style="font-size:13px;font-weight:normal"><span style="font-family:arial;font-size:small">---</span></div></h1></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div>
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