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/sci/ - Science & Math

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9751221 No.9751221 [Reply] [Original]

Since the glass that is used to hold up the structure buildings are silicates, does that mean concrete (both the aggregate and the cement) are glass too?

>> No.9751247
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9751247

>>9751221
>>>/reddit/

>> No.9751546

>>9751247
>missing the joke

>> No.9751888

>>9751221
Concrete=CaCO3
Glass=SiO2

>> No.9751891

>>9751221
it's rocks are made of the same stuff as glass
quartz specifically
rocks are hard because quartz usually forms silica tetrahedrons which are very strong but in glass that's not what happens

>> No.9751914

>>9751247
Nice try. We’d have colonized multiple star systems by now without sky fairy cults.

>> No.9751927
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9751927

>>9751914
This

>> No.9751928

>>9751888
Calcium carbonate is just the cement, the aggregate is a silicate just like glass

>> No.9751937

You start with a mixture of CaCO3 and Al2[Si4O10(OH)4] which you "burn" at 1500°C.
You get a mixture of Ca2SiO4, Ca3SiO5 and Ca3Al2O6 and you add CaSO4.
That gives you the Portland cement.
By adding and then removing water, you form Ca(OH)2 and calciumsilicatehydrate phases like Ca3Si2O7*3H2O.
You "add" CO2 and remove more water and get CaCO3 (s) and calciumsilicatehydrate phases.

To this mixture, you add pebbles and you have Concrete.
So no, it is not glass.

>> No.9751945

>>9751927
>arbitrary and unquantifiable axes
ebin

>> No.9751946

>>9751221

>Since the glass that is used to hold up the structure buildings

buildings are held up through an internal steel skeleton

>> No.9751949

>>9751946
No they aren't, steel structures can't stand up on their own due to rather poor tensile and compression strength, that's why the glass needs to be put on the building shortly after the internal structure is done, so it can hold up the weight of the building.

>> No.9751951
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9751951

>>9751914

>> No.9751953

>>9751221
>aggregate and the cement are glass
L0Lno fgt pls
Lrn2concrete

>> No.9751955
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9751955

>>9751951
nice post anon, but if you mind could you post smaller in the images in the future, these are too big too see all the details easily

>> No.9751957

>>9751951
The only rationale behind their statement I can imagine is that they think religion is somehow necessary for social cohesion or something.

>> No.9751963

>>9751945
t.buttmad religiontard who can't accept that his fairy tales have always held back the pursuit of knowledge