Scientists strengthen concrete by 30 percent with used coffee grounds
submitted 8 months ago by [deleted] from (engadget.com)
[–]iamonlyoneman 1 insightful - 1 fun1 insightful - 0 fun2 insightful - 0 fun2 insightful - 1 fun - 8 months ago (0 children)
I got as far as the first sentence before tuning it out. It's a lie. There is no shortage of sand. Literally the world is covered in rocks, and the rocks have been crushed for decades to make the fine aggregate in concrete.
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[–]iamonlyoneman 1 insightful - 1 fun1 insightful - 0 fun2 insightful - 0 fun2 insightful - 1 fun - (0 children)