• Famko
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    7 days ago

    IIRC from my material science course, if you really want to fuck up a batch of concrete, you should use salt instead of sugar, cause it’ll crack the concrete with every freeze and thaw cycle.

    • rhombus@sh.itjust.works
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      6 days ago

      It’s the same as with the sugar, you need a lot of it to make much of a difference. Unless it’s reinforced concrete, then the salt in the water will corrode the steel rebar and that will definitely cause cracking.