Re:Engineer turns plastic into bricks that are reportedly st...
by ProtoMathics on Thursday May 19, 2022 @07:18PM
(#31441439)
glass is made from sand,
there is less glass in world then sand,
and again,
why lock more precious commodity in another product
which we are already making from other less precious commodity ?
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Re:Engineer turns plastic into bricks that are reportedly st...
by max599 on Friday May 20, 2022 @01:10AM
(#31443589)
It's the shape of the grains of sand that's bad for concrete, not the chemical composition. It gets less angular and more round when it moves in the desert and it doesn't bound well with cement. Sand that is good for concrete is rare and making it is expensive. The "bad" sand that is common everywhere is still perfect to make glass.