What it is
A cured cube is centred in a compression-testing machine and loaded until it fails.
Public test guide
Concrete cube compressive strength
Determines the compressive strength of a concrete cube made from sampled fresh concrete.
Plain-language explanation
What the test tells you.
The project specification controls the exact method and acceptance requirement.
What is used
Identified and cured concrete cube, calibrated compression machine and dimensional measuring equipment.
What it determines
Maximum failure load divided by the loaded area, reported as compressive strength.
Why it matters
Used to assess whether the sampled concrete is developing the strength required for the concrete cast on site.
Typical test sequence
From sample
to result.
- 01
Identify, inspect and measure the cured cube
- 02
Centre it between the machine platens
- 03
Apply load at the specified rate and calculate strength
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