Generally, concrete cubes are tested to measure concrete’s:

Generally, concrete cubes are tested to measure concrete’s:

A. Compressive strength
B. Tensile strength
C. Twisting strength
D. None of the above
Correct Answer: A. Compressive strength

🟪 What Concrete Cube Tests Measure

Concrete cubes are placed in a compression testing machine (CTM) and loaded until failure. The test directly measures compressive strength in N/mm² (or MPa). This is the primary mechanical property used in the design of concrete structures per IS 456:2000.

Tensile strength requires the split test or flexural test (beam specimens). There is no practical “twisting strength” test for concrete cubes.

Cubes are tested for compressive strength — option A.

Key takeaway

Cube → compressive strength. Cylinder split → tensile strength. Beam → flexural (modulus of rupture).

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