Is it true that the world is running out of sand to produce concrete, and if so, why is that?

Question

Is it true that the world is running out of sand to produce concrete, and if so, why is that?

In: 92

Answer 1

You want very specific sand for the use in concrete. It has to be river sand because the grains are small but coarse.

You want minimum contaminants in the sand so no salt water.

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The world is also not running out of sand, but locally the places where a lot of construction is being built is running out of sand. This is because you don’t want to transport sand for long as it’s very expensive(sand is cheap but heavy) to do so.