Slump Test Apparatus Manufacturer,Supplier and Exporter in India
Product Code : EL-CL-8848
Jlab Export is a leading Slump Test Apparatus Manufacturer,and suppliers in India
In this slump set the cone’s foot pieces clamp to the base plate, which holds the cone still while fresh concrete is filled in for a workability check. Inside, the cone is 20 cm across the base, 10 cm across the top and 30 cm high. A 16 mm graduated steel rod, 600 mm long and rounded at one end, rods the concrete and reads the slump.
Specifications
| Slump cone | Internal 20 cm base diameter, 10 cm top diameter, 30 cm height |
| Cone fittings | Handles and foot pieces |
| Base plate | With clamps for the foot pieces and a lifting handle |
| Rod | Steel, 16 mm dia x 600 mm, rounded at one end, graduated in mm |
| Test | Workability of fresh concrete |
| Minimum order quantity | 10 units |
| Dispatch time | Usually 4–6 working days |
| Manufacturer | JLab (Jain Laboratory Instruments Pvt Ltd), Ambala, India |
How the Slump Is Measured
Clamp the foot pieces to the base plate on a firm, level surface. Fill the cone in layers and rod each layer with the rounded end of the rod, letting the strokes reach just into the layer below. Strike the top level, release the clamps and lift the cone straight up. Then stand the cone beside the concrete, lay the rod across its top and read down to the top of the slumped concrete.
Workability Lab Exercises with the Slump Cone
Slump loss makes a good exercise. One batch from the Laboratory Concrete Mixer is tested at once and then again at regular intervals as it stands. The falling slump shows how fresh concrete stiffens with time and why it should be placed soon after mixing.
The same batch can be checked with the Kelly Ball Penetration Apparatus, where twice the penetration roughly equals the slump. For a mix so stiff that it shows almost no slump, students move on to the Vee Bee Consistometer, which measures workability by vibration time instead.
Frequently Asked Questions
Why does this cone clamp to the base plate?
Clamping the foot pieces holds the cone firmly while it is filled and rodded, so it cannot lift and let mortar leak out at the bottom. The clamps are released just before the cone is lifted.
What size is the cone?
Inside, it measures 20 cm in diameter at the base, 10 cm at the top and 30 cm in height. These are the usual dimensions of a slump cone for concrete.
How soon after mixing should the slump be taken?
Straight away. Fresh concrete loses slump as it stands, so the cone is filled as soon as the sample is taken and the test is finished without pauses.
How does this set differ from the octagonal-plate slump set?
The other Slump Test Apparatus has a steel octagonal base plate and a cone that is held down by hand during filling. In this set the cone has foot pieces that clamp to the plate, and the plate has a lifting handle.
How should the set be cleaned after a test?
Wash the cone, plate and rod before the concrete left on them hardens. Dry them fully before storage so the steel does not rust, and dampen the cone and plate just before the next test.
Other Workability and Casting Apparatus
- Compaction Factor Apparatus (for mixes of very low workability)
- Flow Table
- Cube Moulds
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Last updated: 6 November 2026
