Apparatus Required:-

1. CBR Test Apparatus :-
Consisting of Loading machine with capacity of atleast 5000 kg and equipped with a movable head or base which enables Plunger of 50 mm dia. to penetrate into the specimen at a rate of 1.25 mm/ minute.

2.CBR Mould with Base Plate, Stay Rod and Wing Nut:-

Cylindrical mould:
Inside dia. 150mm and height 175mm with a detachable perforated base plate of 235mm dia. and 10mm thickness. Net capacity - 2250 ml; conforming to IS-9669:1980 (Reaffirmed-2016).

Collar
A detachable extension collar of 60 mm height.

Spacer Disc
148 mm in diameter and 47.7 mm in height along with handle.

Weights
One annular metal weight and several slotted weights weighing 2.5 kg each, 147 mm in diameter, with a central hole 53 mm in diameter.

3. Compaction Rammer
Weight - 4.89 kg with a drop 450 mm.