Slump Cone Test Apparatus

Slump Cone with Tamping Rod and Base Plate

The test apparatus is carried out by filling the slump cone with freshly mixed concrete which is tamped with a steel fod in three layers. The concrete is leveled off with the top of the slump cone, the cone removed ad the slump of the sample is immediately measured.
To ensure that concrete achieves its maximum possible strength and yet retains its ease of placing on site, it is essential that the design of the concrete mix, in relation to the water-cement ratil and work ability, is closely controlled.