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| Determination of Fresh Concrete Density |
Principle: The
fresh concrete is compacted in a rigid, watertight container and then weighed.
The minimum
dimensions of the container must be at least four times the maximum nominal
size of the coarse aggregate in the concrete, but must not be less than 150 mm.
The capacity of the container must be at least 5 liters. The top edge and base
must be parallel.
(Air void test pots with a capacity of 8
liters have also proved very suitable.)
The concrete is compacted mechanically with a
poker or table vibrator or manually with a bar or tamper.
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