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<DIV>I did some quick searches to learn more about the CO2 emissions from the
production of concrete. Where as this bio brick is using a biological
process to create the bond of aggregate that they claim achieves concrete like
strength, the material they are replacing is clay which does not release
CO2. This look like a great idea. I hope it succeeds. It is
the burning of the furnace to bake the traditional brick that releases
CO2. However, real concrete does emit CO2 as a chemical reaction of
calcination. </DIV>
<DIV> </DIV>
<DIV><A
title=http://blogs.ei.columbia.edu/2012/05/09/emissions-from-the-cement-industry/
href="http://blogs.ei.columbia.edu/2012/05/09/emissions-from-the-cement-industry/">http://blogs.ei.columbia.edu/2012/05/09/emissions-from-the-cement-industry/</A></DIV>
<DIV>quote from above link:</DIV>
<DIV> </DIV>
<DIV><FONT face=Helvetica><FONT color=#333333><EM><SPAN
style="FONT-FAMILY: ; WHITE-SPACE: normal; WORD-SPACING: 0px; TEXT-TRANSFORM: none; FLOAT: none; COLOR: ; TEXT-ALIGN: left; WIDOWS: 1; DISPLAY: inline !important; LETTER-SPACING: normal; LINE-HEIGHT: 19px; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"><FONT
style="FONT-SIZE: 9pt">The direct emissions of cement occur through a chemical
process called<SPAN class=Apple-converted-space> </SPAN></FONT></SPAN><FONT
style="FONT-SIZE: 9pt">calcination</FONT><SPAN
style="FONT-FAMILY: ; WHITE-SPACE: normal; WORD-SPACING: 0px; TEXT-TRANSFORM: none; FLOAT: none; COLOR: ; TEXT-ALIGN: left; WIDOWS: 1; DISPLAY: inline !important; LETTER-SPACING: normal; LINE-HEIGHT: 19px; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"><FONT
style="FONT-SIZE: 9pt">. Calcination occurs when limestone, which is made of
calcium carbonate, is heated, breaking down into calcium oxide and
CO</FONT></SPAN><SUB
style="FONT-FAMILY: ; WHITE-SPACE: normal; WORD-SPACING: 0px; TEXT-TRANSFORM: none; COLOR: ; TEXT-ALIGN: left; WIDOWS: 1; LETTER-SPACING: normal; LINE-HEIGHT: 19px; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"><FONT
style="FONT-SIZE: 12pt">2</FONT></SUB><SPAN
style="FONT-FAMILY: ; WHITE-SPACE: normal; WORD-SPACING: 0px; TEXT-TRANSFORM: none; FLOAT: none; COLOR: ; TEXT-ALIGN: left; WIDOWS: 1; DISPLAY: inline !important; LETTER-SPACING: normal; LINE-HEIGHT: 19px; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"><FONT
style="FONT-SIZE: 9pt">. This process accounts for ~50% of all emissions from
cement production.</FONT></SPAN></EM></FONT></FONT></DIV>
<DIV><FONT face=Helvetica><FONT color=#333333><SPAN
style="FONT-FAMILY: ; WHITE-SPACE: normal; WORD-SPACING: 0px; TEXT-TRANSFORM: none; FLOAT: none; COLOR: ; TEXT-ALIGN: left; WIDOWS: 1; DISPLAY: inline !important; LETTER-SPACING: normal; LINE-HEIGHT: 19px; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"></SPAN></FONT></FONT> </DIV>
<DIV><FONT color=#000000 face=Helvetica><SPAN
style="FONT-FAMILY: ; WHITE-SPACE: normal; WORD-SPACING: 0px; TEXT-TRANSFORM: none; FLOAT: none; COLOR: ; TEXT-ALIGN: left; WIDOWS: 1; DISPLAY: inline !important; LETTER-SPACING: normal; LINE-HEIGHT: 19px; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px">This
article goes on to describe a process of capturing CO2 emissions for factory
formed concrete and incorporating it into the concrete itself. Quite
clever. However, a normal temperature process such as these bio bricks
would have that beat. My question is can the bio brick achieve the 4k or
5k psi strength and achieve the porosity of a low water/cement ratio
concrete used to make water resistant finish. This is what would be needed
for prefabricated concrete wall panels such as Superior Wall.
</SPAN></FONT></DIV>
<DIV><FONT color=#000000 face=Helvetica><SPAN
style="FONT-FAMILY: ; WHITE-SPACE: normal; WORD-SPACING: 0px; TEXT-TRANSFORM: none; FLOAT: none; COLOR: ; TEXT-ALIGN: left; WIDOWS: 1; DISPLAY: inline !important; LETTER-SPACING: normal; LINE-HEIGHT: 19px; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"></SPAN></FONT> </DIV>
<DIV><FONT color=#000000 face=Helvetica><SPAN
style="FONT-FAMILY: ; WHITE-SPACE: normal; WORD-SPACING: 0px; TEXT-TRANSFORM: none; FLOAT: none; COLOR: ; TEXT-ALIGN: left; WIDOWS: 1; DISPLAY: inline !important; LETTER-SPACING: normal; LINE-HEIGHT: 19px; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px">With
respect to concrete in general, it creates an extremely durable product.
My vision of a sustainable ecologically driven economy, is we would build for
permanent value. In the ideal, we stabilize the population, develop a
contraction economy the avoids waste and the need to create more new
stuff. If we have a building stock that meets the needs of the population,
there is no demand for more. There will always be a need to adapt what
ever we leave behind to their new circumstances. That is why I like
concrete formed into products that can be efficiently recovered and reconfigured
without remanufacturing. This is like Legos. Segmented blocks for
retaining walls, and masonry pavers for paving and sidewalks are examples of
materials that can be reconfigured without remanufacturing. Urban renewal would
disassemble and reassemble to same material, avoiding the environmental cost of
remanufacturing. I see concrete panels such as Superior Wall allowing for
this possibility. However, new concrete bridges to accommodate
unsustainable automobile lifestyle is only temporarily beneficial and
permanently harmful in the CC2 emissions. </SPAN></FONT></DIV>
<DIV><FONT color=#000000 face=Helvetica><SPAN
style="FONT-FAMILY: ; WHITE-SPACE: normal; WORD-SPACING: 0px; TEXT-TRANSFORM: none; FLOAT: none; COLOR: ; TEXT-ALIGN: left; WIDOWS: 1; DISPLAY: inline !important; LETTER-SPACING: normal; LINE-HEIGHT: 19px; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"></SPAN></FONT> </DIV>
<DIV><FONT color=#000000 face=Helvetica><SPAN
style="FONT-FAMILY: ; WHITE-SPACE: normal; WORD-SPACING: 0px; TEXT-TRANSFORM: none; FLOAT: none; COLOR: ; TEXT-ALIGN: left; WIDOWS: 1; DISPLAY: inline !important; LETTER-SPACING: normal; LINE-HEIGHT: 19px; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px">“We
are made of star stuff”, Carl Segan</SPAN></FONT></DIV>
<DIV><FONT color=#000000 face=Helvetica><SPAN
style="FONT-FAMILY: ; WHITE-SPACE: normal; WORD-SPACING: 0px; TEXT-TRANSFORM: none; FLOAT: none; COLOR: ; TEXT-ALIGN: left; WIDOWS: 1; DISPLAY: inline !important; LETTER-SPACING: normal; LINE-HEIGHT: 19px; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"></SPAN></FONT> </DIV>
<DIV><FONT color=#000000 face=Helvetica><SPAN
style="FONT-FAMILY: ; WHITE-SPACE: normal; WORD-SPACING: 0px; TEXT-TRANSFORM: none; FLOAT: none; COLOR: ; TEXT-ALIGN: left; WIDOWS: 1; DISPLAY: inline !important; LETTER-SPACING: normal; LINE-HEIGHT: 19px; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px">Eli
</SPAN></FONT></DIV>
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<DIV><FONT face=Arial></FONT> </DIV>
<DIV style="BACKGROUND: #f5f5f5">
<DIV style="font-color: black"><B>From:</B> <A
title=conservationarchitect@rockbridge.net
href="mailto:conservationarchitect@rockbridge.net">conservationarchitect@rockbridge.net</A>
</DIV>
<DIV><B>Sent:</B> Monday, March 09, 2015 11:32 AM</DIV>
<DIV><B>To:</B> <A title=greenbuilding@lists.bioenergylists.org
href="mailto:greenbuilding@lists.bioenergylists.org">'Green Building'</A> </DIV>
<DIV><B>Subject:</B> Re: [Greenbuilding] bio bricks?</DIV></DIV></DIV>
<DIV> </DIV></DIV>
<DIV
style='FONT-SIZE: small; TEXT-DECORATION: none; FONT-FAMILY: "Calibri"; FONT-WEIGHT: normal; COLOR: #000000; FONT-STYLE: normal; DISPLAY: inline'>
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<DIV style="FONT-SIZE: 10pt; FONT-FAMILY: 'Arial'; COLOR: #000000">
<DIV>I wonder if this technique could include reinforcing to replace concrete,
such as concrete panels like superior wall? I am aware that concrete is
high co2.</DIV>
<DIV>Eli </DIV>
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style='FONT-SIZE: small; TEXT-DECORATION: none; FONT-FAMILY: "Calibri"; FONT-WEIGHT: normal; COLOR: #000000; FONT-STYLE: normal; DISPLAY: inline'>
<DIV style="FONT: 10pt tahoma">
<DIV><FONT face=Arial></FONT> </DIV>
<DIV style="BACKGROUND: #f5f5f5">
<DIV style="font-color: black"><B>From:</B> <A title=terrain@shaw.ca
href="mailto:terrain@shaw.ca">John Salmen</A> </DIV>
<DIV><B>Sent:</B> Sunday, March 08, 2015 9:42 AM</DIV>
<DIV><B>To:</B> <A title=greenbuilding@lists.bioenergylists.org
href="mailto:greenbuilding@lists.bioenergylists.org">'Green Building'</A> </DIV>
<DIV><B>Subject:</B> Re: [Greenbuilding] bio bricks?</DIV></DIV></DIV>
<DIV> </DIV></DIV>
<DIV
style='FONT-SIZE: small; TEXT-DECORATION: none; FONT-FAMILY: "Calibri"; FONT-WEIGHT: normal; COLOR: #000000; FONT-STYLE: normal; DISPLAY: inline'>
<DIV class=WordSection1>
<P class=MsoNormal><SPAN
style='FONT-SIZE: 11pt; 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: 11pt; FONT-FAMILY: "Calibri","sans-serif"; COLOR: black'><o:p></o:p></SPAN> </P>
<DIV>
<DIV
style="BORDER-TOP: #b5c4df 1pt solid; BORDER-RIGHT: medium none; BORDER-BOTTOM: medium none; PADDING-BOTTOM: 0cm; PADDING-TOP: 3pt; PADDING-LEFT: 0cm; BORDER-LEFT: medium none; PADDING-RIGHT: 0cm">
<P class=MsoNormal><B><SPAN lang=EN-US
style='FONT-SIZE: 10pt; FONT-FAMILY: "Tahoma","sans-serif"; COLOR: windowtext'>From:</SPAN></B><SPAN
lang=EN-US
style='FONT-SIZE: 10pt; 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>
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<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>
<P>
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