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|Testing Calibration Facility (Test House)|
1, The Internal surface of the mould is thoroughly cleaned and tread from superfluous Moisture before commencing the test. And of the cone is in completely dry condition then dampen it using a damp cloth.
2. The mould is then placed on a smooth. Horizontally leveled rigid and non-absorbent Surface such as a rigid plate. It held firmly in place during filling by the operator by standing on the two fool places provided in the slump cone.
3. The mould is filled by concrete in four layers, each approximately one-quarter of height of the mould, and each layer is tamped down with 25 strokes of tamping rod with pointed end in a uniform manner.
4. After tamping the top layer, the concrete in struck off level with a trowel and any mortar leaked out between the mould and base plate is cleaned away.
5. The mould is then removed from the concrete immediately by raising it slowly and carefully in a vertical direction.
It is used for the determination of the Consistency of freshly mixed concrete, where the maximum size of the aggregate does not exceed 38mm the apparatus consists of one slump cone with handles and foot pieces. The slump cone has internal dimensions 20 cm. dia at base 10 cm top dia and 30 mm height. Foot pieces can be fixed to the clamps on the base plate. The base plate has lifting handle for easy transportation. One graduated steel rod 16mm dia X 600 mm long rounded at one end graduated in mms, is also supplied.
The slump cone in these Slump Cone Test Apparatus is filled with freshly mixed concrete and stamped with a tamping rod in three or four layers. The top of the concrete is leveled off with the top of the slump cone, the cone is lifted vertically up and the slump of the sample is immediately measured.
Slump Cone Weight: 7.8 Kg
Packaging material: 3 Kg
Volumetric Weight: 49 X 47 X 28 in CM= 12.9 kg