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Running Out of Sand?
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Fyfluiddynamics

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Image Credit: Fyfluiddynamics

Running Out of Sand?

  • Headlines suggest that the world is running out of angular sand grains for concrete.
  • Angular sand grains make stronger concrete, but rounded ones need less water for workability.
  • Sand is manufacturable through machines and processes.
  • The issue is more about economics of mining and manufacturing sand.

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