The slump test procedure for concrete and applications
The slump test is a very easy method to perform. This method is not suitable for either very dry or very wet concrete. It is used as a control test to indicate the uniformity of the concrete from batch to batch. This test is taken because to test the workability of the concrete. It is also shown that which concrete slumps.
Workability of Concrete
The workability of concrete defines that by which things the concrete can be mixed, transported, and placed in the right position. It depends upon some things like the quantity of water, aggregate grade, and percentage of fine materials in the mix. There are few tests that provide the workability of concrete. The following tests are:
1. Slump test.
2. Compaction factor test.
3. Flow test.
4. Kelly ball test.
5. Vee-Bee consistometer test.
6. K-Slump Test.
The slump test is generally happened in sites and labs due to the ease and results. It provides very quick results. Compared to others slump test is the best among all.
The Procedure of Slump Test
Users first have to clean the inner surface of the Frustum cone. It must be free from any kind of moisture content and any old set concrete. After that users have to place the cone on the metallic steel plate. Next, they have to fill the cone with the concrete in four layers with the height of ? of the cone.
Tamping rod tampe every layer 25 times. For distributing the strokes over the cross-section. After filling the 4th layer users have to strike off the concrete with the trowel.