IANASE (I am not a sand expert) It would appear that desert sand is not ideal for construction purposes, at least historical. [1] I also googled "dessert sand

IANASE (I am not a sand expert) It would appear that desert sand is not ideal for construction purposes, at least historical. [1] I also googled "dessert sand construction" and found a Wikipedia article on land reclamation in Singapore. [2] Apparently Singapore is also using artificial barriers polders (same as or similar to dikes) to reclaim land, which I didn't see mentioned in the above article. [3] [1] https://www.overtureglobal.io/story/-slippery-slopes-of-the-world-sand-shortage https://www.overtureglobal.io/story/-slippery-slopes-of-the-... [2] https://en.wikipedia.org/wiki/Land_reclamation_in_Singapore https://en.wikipedia.org/wiki/Land_reclamation_in_Singapore [3] https://en.wikipedia.org/wiki/Polder https://en.wikipedia.org/wiki/Polder