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This is neat. We are also facing a global sand shortage crisis due to increased demand for concrete. https://theconversation.com/the-world-is-facing-a-global-
by ada1981 8y ago
This is neat.
We are also facing a global sand shortage crisis due to increased demand for concrete.
https://theconversation.com/the-world-is-facing-a-global-sand-crisis-83557 https://theconversation.com/the-world-is-facing-a-global-san...
- legohead 8y agoIndia's sand mafia: https://www.youtube.com/watch?v=ugT-zyXGNIY https://www.youtube.com/watch?v=ugT-zyXGNIY
- thewizardofaus 8y agoThat was interesting to watch. Thanks for sharing :-)
- ada1981 8y agoGreat film. I wanted to get a sense of the economics of the entire thing. They said mining for sand could be more profitable than mining for gold. I presume that means extracting a truckload of sand will yield more profit than a truck of ore containing rock? I’m also now curious about sand alternatives.
- ada1981 8y agoApparently using desert sand, which is abundant, isn’t feasible and beach / river sand has been the only solution. A team has recently created a concrete alternative from desert sand, however, that has half the carbon footprint and is made from abundant materials. https://www.dezeen.com/2018/03/24/desert-sand-could-offer-low-carbon-concrete-alternative/ https://www.dezeen.com/2018/03/24/desert-sand-could-offer-lo...