What it is
Prepared aggregate is loaded in a standard cylinder and the resulting fines are measured.
Public test guide
10% Fines Aggregate Crushing Test
Finds the load required to produce a controlled amount of crushed fine material from aggregate.
Plain-language explanation
What the test tells you.
The project specification controls the exact method and acceptance requirement.
What is used
Aggregate specimen, standard cylinder and plunger, compression machine, balance and specified sieve.
What it determines
The load associated with approximately ten percent fines, representing resistance to crushing.
Why it matters
Helps compare aggregate strength and suitability for heavily loaded pavement or concrete use.
Typical test sequence
From sample
to result.
- 01
Prepare and compact the specified aggregate fraction
- 02
Apply a controlled compressive load
- 03
Measure fines and calculate or interpolate the ten-percent-fines value
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