Concrete test specimen sampling: Cube vs Cylinder strength standards
Understanding concrete compressive strength conversion ratios between 15x15 cm cubes and 15x30 cm cylinders per engineering codes.

Cube vs Cylinder Strength Conversion
Cube strength (15x15 cm) measures approx 1.15-1.20 times cylinder strength (15x30 cm); e.g., 240 ksc cylinder equals 280 ksc cube.
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