Controls Group Kelly ball Kelly ball

Kelly ball

General description
General description
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.
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.
  • Weight approx.: 15 kg
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Kelly ball


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Controls Group USA, Inc.

2521 Technology Drive, Suite 203
Elgin, Il 60124.
Phone: +1 844 291 4305

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