Comment on YSK: You can make supercapacitors out of cement, water and carbon black

<- View Parent
SchmidtGenetics@lemmy.world ⁨4⁩ ⁨days⁩ ago

Concrete has different spec ratios, spec a higher psi concrete, and allow the lower end strength.

Commonly done when you want to use accelerators or retardants already.

source
Sort:hotnewtop