Description and Specification for Lab Tenders
Kelly Ball Penetration Apparatus.
Specification: The apparatus is used to determine the workability of
Portland cement & concrete. The Kelly ball test is considered to be
simple and much faster than the slump test. Twice the Kelly ball reading
approximately equals the slump. It consists of a cylinder with a ball
shaped bottom and handle, together weighing 15 kg. A strip frame, guides
the handle and serves as a reference for measuring the depth of
penetration. The handle is graduated in mm. Penetration can be recorded
to the nearest 0.5 mm.