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I recall talk recently about a shortage of sand appropriate for creating cement. It seems that this compressed wood turns that potential shortage into an oppor
by simtel20 8y ago
I recall talk recently about a shortage of sand appropriate for creating cement. It seems that this compressed wood turns that potential shortage into an opportunity.
- jessaustin 8y agoTalk of sand shortages anywhere but in extremely remote and non-sandy locations is ridiculous. Sand is among the cheapest materials on earth. If it ever became difficult to procure, the price would rise.
- rrego 8y agoExcept that the price has risen. Easily procurable sand (typically from river beds) is being depleted, and no the desert sand isn't any good for construction. https://www.wsj.com/articles/latest-threat-to-u-s-oil-drillers-the-rocketing-price-of-sand-1490266800 https://www.wsj.com/articles/latest-threat-to-u-s-oil-drille... https://fred.stlouisfed.org/series/WPS1321 https://fred.stlouisfed.org/series/WPS1321
- jessaustin 8y agoThe price has risen slowly and steadily for decades? And it's still the cheapest commodity around? I don't see the problem...
- Retra 8y agoPlenty of sand in the Sahara, last I checked.
- DanBC 8y agoConcrete doesn't need "sand", it needs "sharp sand". You get sharp sand from river beds. You don't get it from deserts. The wind erosion causes round grains, and those are not useful for concrete.
- drcharris 8y agoNice little summary here https://www.youtube.com/watch?v=V2349cn0-T0 https://www.youtube.com/watch?v=V2349cn0-T0