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</o:shapelayout></xml><![endif]--></head><body bgcolor=white lang=EN-CA link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:black'>This reminds me of some of the ancient techniques for making earthen floors; bacteria, anaerobic conditions etc..<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:black'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal><b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext'>From:</span></b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext'> Greenbuilding [mailto:greenbuilding-bounces@lists.bioenergylists.org] <b>On Behalf Of </b>Bob Waldrop<br><b>Sent:</b> March-07-15 5:22 PM<br><b>To:</b> Green Building<br><b>Subject:</b> [Greenbuilding] bio bricks?<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span lang=EN>Beginning with sand, a liquid mixture of bacteria, nitrogen, food for the bacteria, a calcium source, and water are added. Over 5 days, the liquid is gradually added until the food and water run out and the sand dries. At that point, it is a concrete brick, with strength comparable to anything that has come before.</span><o:p></o:p></p><div><div id=ygrp-mlmsg><div id=ygrp-msg><div id=ygrp-text><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><a href="https://www.minds.com/blog/view/418891791245250560/award-winning-low-footprint-bricks-grown-with-sand-and-bacteria-it039s-a-big-deal">https://www.minds.com/blog/view/418891791245250560/award-winning-low-footprint-bricks-grown-with-sand-and-bacteria-it039s-a-big-deal</a><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b>Bob Waldrop, Okie City<br><br><br></b><o:p></o:p></p></div></div></div></div></div></div></body></html>