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International Journal for Research in Applied Science & Engineering Technology (IJRASET)
from In refurbishment projects a great deal of the water from existing structure is generated at the demo
by IJRASET
ISSN: 2321-9653; IC Value: 45.98; SJ Impact Factor: 7.538
Volume 11 Issue IV Apr 2023- Available at www.ijraset.com
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Workability by Slump Cone Test Procedure to determine workability of fresh concrete by slump test.
1) The internal surface of the mould is thoroughly cleaned and applied with a light coat of oil.
2) The mould is placed on a smooth, horizontal, rigid and nonabsorbent surface.
3) The mould is then filled in four layers with freshly mixed concrete, each approximately to one-fourth of the height of the mould.
4) Each layer is tamped 25 times by the rounded end of the tamping rod (strokes are distributed evenly over the cross section).
5) After the top layer is rodded, the concrete is struck off the level with a trowel.
6) The mould is removed from the concrete immediately by raising it slowly in the vertical direction.
7) The difference in level between the height of the mould and that of the highest point of the subsided concrete is measured.
8) This difference in height in mm is the slump of the concrete.
