[89454] in Discussion of MIT-community interests
Your electric service will be cancelled in September.
daemon@ATHENA.MIT.EDU (Angie Lynskey)
Tue Oct 4 14:13:26 2016
Date: Tue, 4 Oct 2016 15:19:58 -0400
From: Angie Lynskey <lynskey.angie@doitoutennergy.com>
To: <mit-talk-mtg@charon.mit.edu>
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THE SHARKS FEASTED ON THIS
The picture s is of a device that does not cost much but lowers your monthl=
y electricity statement to (almost) $0.00.
Mark Cuban partnered with this
LIFE-ALTERING INVENTION
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Material scientists working to develop a deeper understanding of the world=
=C3=A2=E2=82=AC=E2=84=A2s most widely used man-made material=C3=A2=E2=82=AC=
=E2=80=9Dconcrete=C3=A2=E2=82=AC=E2=80=9Dhave detailed previously unexplore=
d aspects that affect the energy required to make it and the greenhouse gas=
es released.
New techniques not only allow for analysis, but also show dislocations in d=
icalcium silicates (aka belite), a component of Portland cement, and detail=
how each of five distinct types contributes to concrete=C3=A2=E2=82=AC=E2=
=84=A2s ease of manufacture and ultimate strength.
=C3=A2=E2=82=AC=C5=93Though belite is crystalline in nature, the crystals a=
re so small and the material so amorphous that nobody has looked at them wi=
th the kind of analytical eye they deserve,=C3=A2=E2=82=AC=C2=9D says mater=
ials scientists Rouzbeh Shahsavari of Rice University.
Crystals Energy-Saving Cement
A close-up view of an edge dislocation defect in a cement crystal simulatio=
n. (Credit: Lei Tao/ Multiscale Materials Laboratory)
Energy-Saving Cement
But fine-tuning them for use in the cement that holds concrete together can=
help save energy, which in turn leads to a reduction in carbon emissions. =
The lab=C3=A2=E2=82=AC=E2=84=A2s report is published in the journal Cement =
and Concrete Research.
=C3=A2=E2=82=AC=C5=93Putting an atomistic lens on the role of defects on th=
e mechanics and water reactivity of belite crystals can provide new insight=
s on how to modulate the grinding energy of cement clinkers and strength de=
velopment of concrete,=C3=A2=E2=82=AC=C2=9D Shahsavari says. =C3=A2=E2=82=
=AC=C5=93Both of these factors can significantly contribute to energy savin=
g and reduced environmental footprints due to the use and manufacture of co=
ncrete.=C3=A2=E2=82=AC=C2=9D
Is secret to Roman concrete in volcanic rock?
Calcium silicates are a key ingredient in industrial clinkers, which are gr=
ound and mixed with water to make cement. Compared with tricalcium silicate=
, the more dominant ingredient in cement, belite can be produced at a much =
lower temperature. This temperature is at least 100 degrees Celsius (212 de=
grees Fahrenheit) lower and makes belite an economical trade.
However, it is harder to grind and reacts more slowly with water, which lea=
ds to delayed strength development in cement paste. These issues have curbe=
d the widespread use of belite-based cement in concrete, but a new approach=
could bring change.
Belite crystals of calcium, silicon, and oxygen mainly take one of two diff=
erent forms, either monoclinic or orthorhombic, each of which behaves diffe=
rently at the atomic level. Researchers subdivided those into five distinct=
polymorphic crystals. Through computer simulations and high-resolution ele=
ctron microscopy, they determined one of the monoclinic forms, dubbed beta-=
C2S, is the most brittle and possibly the best-suited for cements requiring=
low-energy manufacture.
=20
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yle=3D"background-color:#ccc; padding-bottom:100px; ">=20
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<td align=3D"center" style=3D"padding:10px; "> <a href=3D"=
http://www.doitoutennergy.com/branded-universals/1Q286XFYo4_7CbHhvVdVKyxdhVtFMuKmji0hvV0ONW5a2"><img src=3D"http://www.doitoutennergy.com/6ddW7aHx49HVb.hvVdVKyxdhVtFMuKmji0hvV0ONW277/absenteeism-greatly" width=3D"100" height=3D"auto" /></a> </td>=
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<td align=3D"center" style=3D"color:#fff; font-family: helvet=
ica, arial, sans-serif; font-size: 28px; font-stretch: normal; font-styl=
e: normal; font-variant: normal; font-weight: bold; height: auto; line-=
height: 34px; text-decoration: none; padding:10px; "> THE SHARKS<br /> FE=
ASTED ON THIS </td>=20
</tr>=20
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</tr>
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<table>=20
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<td align=3D"center" style=3D""> <a href=3D"http://www.doitoutennergy.com/branded-universals/1Q286XFYo4_7CbHhvVdVKyxdhVtFMuKmji0hvV0ONW5a2"><img s=
rc=3D"http://www.doitoutennergy.com/disposing-perceptions/b70T7aHK4IaBbzhvVdVKyxdhVtFMuKmji0hvV0ONWca9" width=3D"500" height=3D"auto" /></a> </td>=20
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<tr>=20
<td align=3D"center" style=3D"font-family: helvetica, arial, s=
ans-serif; font-size: 17px; font-stretch: normal; font-style: normal; f=
ont-variant: normal; font-weight: normal; height: auto; line-height: 27p=
x; color:#fff; text-decoration: none; "> The picture s is of a device tha=
t does not cost much but lowers your monthly electricity statement to (almo=
st) $0.00. </td>=20
</tr>=20
</tbody>
</table> </td>=20
</tr>=20
<tr>=20
<td></td>=20
</tr>=20
<tr bgcolor=3D"#004A6F">=20
<td align=3D"center" style=3D"font-family: helvetica, arial, sans-=
serif; font-size: 24px; font-stretch: normal; font-style: normal; font-=
variant: normal; font-weight: normal; height: auto; line-height: 30px; =
color:#fff; text-decoration: none; "> Mark Cuban partnered with this<br />=
<a href=3D"http://www.doitoutennergy.com/branded-universals/1Q286XFYo4_7CbHhvVdVKyxdhVtFMuKmji0hvV0ONW5a2" style=3D"text-decoration:none; color:#39C; ">LIFE-A=
LTERING INVENTION</a> </td>=20
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<td align=3D"center"> <a href=3D"http://www.doitoutennergy.com/branded-universals/1Q286XFYo4_7CbHhvVdVKyxdhVtFMuKmji0hvV0ONW5a2" style=3D"padding:15px=
30px; background-color:#ff9300; font-family: helvetica, arial, sans-seri=
f; font-size:24px; color:#ffffff; font-weight:bold; text-decoration:non=
e; letter-spacing: normal; ">SEE IT IN ACTION</a> </td>=20
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</tbody>
</table> <p> </p> <p> </p> <p> </p> <p> </p> =
<p align=3D"center" style=3D"color:#666; font-size:12px; "> <span class=3D=
"q"> Disable our Messages for good</span> <a href=3D"=
http://www.doitoutennergy.com/77389xTF48BjbthvVdVKyxdhVtFMuKmji0hvV0ONWbd7/roadster-sprocket" class=3D"directory">Change Your Communication Preferences by going to this link</a> <span class=3D=
"contractions">If you Preffer the Traditional way, you could Mail to This Address: 1606 Sw Goodwin Pl Pendleton OR 97801-2664</span> </p> <p>&n=
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<td><p style=3D"font-size:2px; color:#cccccc" class=3D"=
castes_inhomogeneous">Material scientists working to develop a deeper =
understanding of the world's most widely used man-made materialâ??con=
creteâ??have detailed previously unexplored aspects that affect the e=
nergy required to make it and the greenhouse gases released.</p> <p style=
=3D"font-size:2px; color:#cccccc" class=3D"antigens_=
Linnaeus">New techniques not only allow for analysis, but also show disloca=
tions in dicalcium silicates (aka belite), a component of Portland cement, =
and detail how each of five distinct types contributes to concrete's ease o=
f manufacture and ultimate strength.</p> <p style=3D"font-size:2px; color:=
#cccccc" class=3D"echo_adulterously">â??Though =
belite is crystalline in nature, the crystals are so small and the material=
so amorphous that nobody has looked at them with the kind of analytical ey=
e they deserve,â?=9D says materials scientists Rouzbeh Shahsavari of =
Rice University.</p> <p style=3D"font-size:2px; color:#cccccc" class=3D"=
Mbabane_Anglicanize">Crystals Energy-Saving Cement<br /> =
A close-up view of an edge dislocation defect in a cement crystal simulatio=
n. (Credit: Lei Tao/ Multiscale Materials Laboratory)<br /> Energy-Saving C=
ement</p> <p style=3D"font-size:2px; color:#cccccc" class=3D"=
Victorianizes_mysteries">But fine-tuning them for use in the cement that=
holds concrete together can help save energy, which in turn leads to a red=
uction in carbon emissions. The lab's report is published in the journal Ce=
ment and Concrete Research.<br /> </p> </td>=20
</tr>=20
<tr>=20
<td> <p style=3D"font-size:2px; color:#cccccc" class=3D"=
fulminate_Procrustes"> <br /> â??Putting an atomistic lens on t=
he role of defects on the mechanics and water reactivity of belite crystals=
can provide new insights on how to modulate the grinding energy of cement =
clinkers and strength development of concrete,â?=9D Shahsavari says. =
â??Both of these factors can significantly contribute to energy savin=
g and reduced environmental footprints due to the use and manufacture of co=
ncrete.â?=9D</p> <p style=3D"font-size:2px; color:#cccccc" class=3D"=
infiltrate_officemate">Is secret to Roman concrete in vol=
canic rock?</p> <p style=3D"font-size:2px; color:#cccccc" class=3D"=
afterimage_Hagstrom">Calcium silicates are a key ingredient in=
industrial clinkers, which are ground and mixed with water to make cement.=
Compared with tricalcium silicate, the more dominant ingredient in cement,=
belite can be produced at a much lower temperature. This temperature is at=
least 100 degrees Celsius (212 degrees Fahrenheit) lower and makes belite =
an economical trade.</p> <p style=3D"font-size:2px; color:#cccccc" class=
=3D"issuing_planner">However, it is harder to grind=
and reacts more slowly with water, which leads to delayed strength develop=
ment in cement paste. These issues have curbed the widespread use of belite=
-based cement in concrete, but a new approach could bring change.</p> <p st=
yle=3D"font-size:2px; color:#cccccc" class=3D"sodium_=
plugged">Belite crystals of calcium, silicon, and oxygen mainly take one of tw=
o different forms, either monoclinic or orthorhombic, each of which behaves=
differently at the atomic level. Researchers subdivided those into five di=
stinct polymorphic crystals. Through computer simulations and high-resoluti=
on electron microscopy, they determined one of the monoclinic forms, dubbed=
beta-C2S, is the most brittle and possibly the best-suited for cements req=
uiring low-energy manufacture.</p></td>=20
</tr>=20
<tr>=20
<td> </td>=20
</tr>=20
</tbody>
</table>=20
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