IS 1727 1967, IS 4031 1968, ASTM C 394, C 64
For making standard rectangular specimens of 40 x 40 x 160mm. of
Portland and pozzolana cement mortar for determining the
transverse strength.
Specification :
The jolting apparatus consists of
a rectangular table rigidly connected by two support arms to a
spindle at a horizontal distance of 800 mm from the centre of the
table. There is a projecting lug with a plane face on the upper face of
the table beneath which is a stop with a rounded upper surface. The
table can be raised and allowed to fall freely on the stop by a cam
which is connected to a motor and gearbox through a V-belt an
pulleys. The cam rotates at a rate of 60 Rev/Min. A stroke counter
fitted with micro-switch is provided which stops the machine after
60 Jolts. Locating pins are provided for mounting the mould
compartments on the table. The mould surmounted by the hopper
can be clamped rigidly to the table. Supplied complete with mould
and hopper. Suitable for operation on 230 Volts, Single Phase, A.C.
Supply. A Digital Preset Counter can be supplied at an extra cost.
Accessories:
Steel mould with base plate having three
compartments each having 40mm x 40mm x 160mm.