Scientists strengthen concrete by 30 percent with used coffee grounds::Researchers in Australia have found a new use for old coffee grounds: concrete doping!.
14 points
This is funny because when I was a plumber after particularly dirty days I used to wash my hands with cement and I used to think that made my hands feel smooth
9 points
Makes sense if you were working with strong acids. Bleach or baking soda might’ve had a similar effect.
8 points
6 points