I assume I shouldn’t label this as OC.

  • Kbobabob@lemmy.world
    link
    fedilink
    arrow-up
    0
    ·
    1 month ago

    It can’t be used for concrete because it’s too smooth due to erosion. Industrial sand is manufactured to have sharp edges so it holds better.

    • lud@lemm.ee
      link
      fedilink
      arrow-up
      0
      ·
      1 month ago

      I heard beach sand is pretty good for concrete. Apparently there is something called sand mafias in (iirc) India which basically steals sand from beaches and sells it.