I assume I shouldn’t label this as OC.

      • Kbobabob@lemmy.world
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        1 year 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.

          • And009@reddthat.com
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            1 year ago

            Beaches, rivers you name it. Flowing water makes the best kind of construction sand.

            In bangladesh, the sand mafia have literally eaten through making rivers extra wide.