This is for aggregates resistance to abrasion. The apparatus consists of a metal disc which revolves in a horizontal plane on a vertical shaft. A suitable attachment for holding the specimen with is....
This is for aggregates resistance to abrasion. The apparatus consists of a metal disc which revolves in a horizontal plane on a vertical shaft. A suitable attachment for holding the specimen with is axis vertical and its lower end pressed with a prescribed pressure against the surface of the disc (the distance from the centre of specimen to the centre of shaft being 25 cm) is provided. A convenient funnel for feeding sand continuously upon the rotating disc is also provided. The machine is fitted with a ¼ h.p. electric motor, driven through a reduction gear to give 28-30 revolution of the disc per minute. Suitable for
operation from 220/230 volts single phase, A.C. supply
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