KELLY BALL APPARATUS
- Alternative to the slum test
- On Spot performance and results
The apparatus consists of a cylinder with one end having a hemispherical shape and the other end fit with a graduated handle. The weight assembly is lowered through a frame into the concrete and the penetration measured.
This method is used to determine the penetration of a hemispherical metal weight into freshly mixed concrete, which is related to the workability of the concrete.
CN 0135 Kelly ball apparatus