For determining the aggregate impact value.
For determining the aggregate impact value.
The instrument consists of a circular base with two vertical guides. The hammer of weight 13.75 t 0.25 kg can be raised to fall freely down the vertical guides. The height of fall can be adjusted through 380 + 5 mm. The hammer is provided with a locking arrangement. The hammer falls freely on the aggregates in the cylindrical cup by trigger action. Cylindrical cup can be clamped firmly to the base and is removable tor emptying. Supplied complete with metal measure 75 mm diameter x 50 mm high (for specimen preparation) and tamping rod 230 mm long x 10 mm dia.
For determining the aggregate impact value.