Used for determination of compaction factor of fresh concrete with nominal maximum size of aggregate not exceeding 40 mm as a measure of its workability. It is particularly suitable for mix of stiffer consistency.
It comprises the following :
- Two conical hoppers with trap doors.
- One cylindrical receiver 0.005 cu. m. volume.
- A welded steel stand for mounting the hoppers and the receiver co-axially at specified distances.
- Two trowels.
- One hand scoop.
- One standard tamping rod 16 mm dia x 600 mm long.