"Concrete" is a composite material that can vary wildly depending on composition and process. These tests on grade M10 concrete for example concluded with 136,

"Concrete" is a composite material that can vary wildly depending on composition and process. These tests on grade M10 concrete for example concluded with 136, 131, and 147 kg/cm2 for their 3 samples. For plain cement, generally grade M15 is used[1] which is about 153 kg/cm2 [0] https://civilplanets.com/compressive-strength-of-concrete/ https://civilplanets.com/compressive-strength-of-concrete/ [1] https://theconstructor.org/concrete/grades-concrete-strength-selection/20570/ https://theconstructor.org/concrete/grades-concrete-strength...