EN 12350-2:2009 Testing fresh concrete - Part 2: Slump-test

[ir_71]

EN 12350-2:2009 Testing fresh concrete - Part 2: Slump-test

This European standard specifies a method for determining the consistence of fresh concrete by the slump
test.
The slump test is sensitive to changes in the consistence of concrete, which correspond to slumps between
10 mm and 200 mm. Beyond these extremes the measurement of slump can be unsuitable and other
methods of determining the consistency should be considered.
If the slump continues to change over a period of 1 min after de-moulding, the slump test is not suitable as a
measure of consistence.
The test is not suitable when the maximum size of aggregate in the concrete is greater than 40 mm.

Is there anyone who does not know this method?:JC_shhh:

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