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☆ Yσɠƚԋσʂ ☆
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to TechnologyEnglish · 2 years ago

China builds with manufactured sand, easing worry about overmining and environmental cost

archive.ph

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China builds with manufactured sand, easing worry about overmining and environmental cost

archive.ph

☆ Yσɠƚԋσʂ ☆
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to TechnologyEnglish · 2 years ago
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https://archive.ph/2024.08.12-071715/https://www.scmp.com/news/china/science/article/3273891/china-builds-manufactured-sand-easing-worry-about-overmining-and-environmental-cost

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  • Comprehensive49
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    2 years ago

    This is awesome! I’ve heard liberals talk about China’s sand usage as part of their China-bad smearing without offering any solutions. Artificial sand from mine tailings (a waste product) has basically no downsides, since those tailings would be produced regardless.

  • destroyamerica
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    1 year ago

    deleted by creator

    • Franfran2424
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      2 years ago

      Sand for construction is a limited resource. Not every sand works to make concrete.

      Generally, it has to be river sand, because sea sand has salt and must be washed, and open air sand is pulished by wind, making it worse for building.

      • keepcarrot [she/her]@hexbear.net
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        2 years ago

        Hmm, I was going to steal a bucket of beach sand for casting

        • REEEEvolution
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          2 years ago

          River sand is rougher, sea sand or desert sand is either too rough or almost polished round.

        • Franfran2424
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          2 years ago

          It still works, it generally tends to crack more easily or damage steel bars due to salt.

          • keepcarrot [she/her]@hexbear.net
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            2 years ago

            I will most likely wash it a bunch? THat’s what the internet told me to do

            • Franfran2424
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              2 years ago

              Yeah, that works. Then again, China is kind of demonstrating that crushing rocks into sand also works.

              So whatever pollutes less, I guess.

              • keepcarrot [she/her]@hexbear.net
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                2 years ago

                My factory development level is unfortunately quite low

      • destroyamerica
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        deleted by creator

    • loathsome dongeaterA
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      In India there are “sand mafia” who illegally dig up sand from river beds. It is profitable because it’s used in construction so much.

      • destroyamerica
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        deleted by creator

        • loathsome dongeaterA
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          2 years ago

          https://www.msn.com/en-in/news/India/bjp-to-launch-movement-against-sand-mafia/ar-BB1qRsLo

          There has been some crackdown but the government does not intend to solve this problem. First of all, the fascists do not give a single fuck about the environment. But more importantly, criminals like this are often in cahoots with the local government officials.

  • Sodium_nitride
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    2 years ago

    This is the study the article references

  • Makan
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    2 years ago

    Tbh, now they have to manufacture the artificial sand…

    • Farvana
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      2 years ago

      Which they’re doing, using a waste stream. I imagine the machinery is largely diesel at the momebt, but could be converted to electric in due time

      • Makan
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        2 years ago

        Oho

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