• BarqsHasBite@lemmy.world
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    3 months ago

    Well cement will wear down to the aggregate (the little rocks), which will wear at a different rate. Maybe they use a mix without it.

    • jaschen@lemm.ee
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      3 months ago

      Ya, no rocks. Next time I take my kid to the park, I can take a photo of the older slides. It wears are noticeable . It’s quite an amazing idea to use cement.