AS PER IS: 1237 & 1706.
This is used for determination of resistance to wear for cement
concrete flooring tiles. Tiles specimen of size 7.06cm x 7.06cm is
pressed tace-wise under specific load on a grinding path and
abrasive powder is evenly spread on the rotating grinding path and
after specific number of revolutions of the grinding disc the second
parallel side of the tile is subjected to wear for similar number of
rotations. The wear of the tile is measured on a thickness gauge
specifically made fro the purpose.The machine consists of a disc
rotating at a speed of 30 rpm in a circular tray. A bracket is provided
to hold the specimen. A counter balance lever loads the specimen.
Load applied is 30kgf. A funnel is fitted to evenly spread abrasive
powder on the grinding path. A pre-set counter automatically stops
the machine after 22 revolutions. This counter is re-adjustable. The
machine works on 440 volts AC, three phase electrical supply.