A
cylindrical container of approximately 0.01meter cube capacity, having an
inside diameter of 250 mm and height 280 mm used. A tamping bar similar to the
one used for slump test is used. A pipette for drawing off free water from the surface,
a graduated jar of 100 centimeter cube capacity is required for test.
A
sample of freshly mixed concrete is obtained. The concrete is filled in 50 millimeter
layer for a depth of 250±3 millimeter (5 layers) and each layer is tamped by
giving stokes, and the top surface is made smooth by toweling.
The
test specimen is weighed and the weight of the concrete is noted. Knowing the
total water content in 1 meter cube of concrete quantity of water in the
cylindrical container is also calculated.
The cylindrical container is kept in a level
surface free from vibration at a temperature of 27⁰C ± 2⁰C; it is covered with
a lid. Water accumulated at the top is dawn by means of pipette at 10 minutes
interval for the first 40 minutes and at 30 minutes interval subsequently till
bleeding ceases. To facilitate collection of bleeding water the container may
be slightly titled. All the bleeding water collected in a jar.
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