Cement Testing Equipments(Civil Engg Lab Eqp's)

This is used for determining the workability of building limes.

Specification:

The flow table consists of a 30 cm dia polish steel plate with 3 engraved annular circles 7, 11 and 19cm dia. The table top is arranged for a free fall of 12.5mm by a cam action. Supplied complete with one brass conical mould, 65mm i.d. at base and 40mm i.d. at top, height of the mould 90mm. Motorized Models are also available.

The apparatus is used for determining the fineness of cement in terms of specific surface expressed as total surface area in square centimeters per gram of cement. This is a variable flow type air permeameter.

It is used for mixing cement pastes, mortars and pozzolana.The apparatus consists of an epicyclical type stainless steel paddle imparting both planetary and revolving motion, by means of gears. It has two speeds of 140 + 5 R.P.M. And 285 +10 R.P.M. With planetary motions of approximately 62 r.p.m, +5 R.P.M. And 125 R.P.M. +/- 10 R.P.M. Respectively. The stand of the mixer has arrangement to raise or lower the bowl. Complete with stainless steel bowl of about six liters capacity. Suitable for operation on 230 V, 50 cycles, Single Phase A.C, Supply.

It is used for making standard rectangular specimens of 40 x 40 x 160mm. of Portland and pozzolana cement mortar for determining the transverse strength.

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.

Vibrating machine is used for the preparing of mortar cubes for the determination of compression strength of ordinary and rapid hardened Portland cement, low heat Portland cement, Portland blast furnace cement and high alumina cements.

The machine consists of a vibrating frame assembly and an electric motor mounted on a sturdy base. The complete frame assembly consists of a vice to hold a 7.06cm cube mould and two studs threaded at top and a hopper to feed the sample in the mould. This assembly is supported on four springs and has an in built rotating shaft which rotates eccentrically and thus imparts vibrations to the entire frame. A balance weight is an integral bottom part of the frame. The centre of gravity of the assembly is brought to the centre of the eccentric shaft within a distance of 25mm below it. The electric motor drives the shaft of the frame and thus imparts required vibration to the moulds. The frequency of vibration is 12000 +/- 400 Vibration Per Minute. Supplied complete with on 7.06 cm Cube Mould with loose base plate, a time switch 0-5mins x 1mm.