Which test is performed to determine the compressive strength of concrete?
Correct Answer: Cube test
- Step 1: Prepare concrete samples in the shape of cubes, usually measuring 150mm x 150mm x 150mm.
- Step 2: Allow the concrete cubes to cure for a specific period, typically 28 days, to gain strength.
- Step 3: Place the cured concrete cube in a compression testing machine.
- Step 4: Gradually apply pressure to the cube until it fails or breaks.
- Step 5: Record the maximum load (in Newtons) that the cube can withstand before breaking.
- Step 6: Calculate the compressive strength by dividing the maximum load by the area of the cube's face.
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