What it is
A specified aggregate size fraction is compacted in a cylinder, loaded and then re-sieved.
Public test guide
Aggregate Crushing Value
Measures how much an aggregate breaks down under a standard compressive load.
Plain-language explanation
What the test tells you.
The project specification controls the exact method and acceptance requirement.
What is used
Prepared aggregate, standard cylinder and plunger, compression machine, balance and control sieve.
What it determines
The percentage of crushed fine material produced by the standard loading cycle.
Why it matters
Assesses aggregate resistance to crushing for road and concrete applications where particles must carry load.
Typical test sequence
From sample
to result.
- 01
Prepare the specified size fraction
- 02
Load the compacted sample in the standard cylinder
- 03
Sieve the tested material and calculate the crushed percentage
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