Abrasion Bohme Tester

EN 1338:2004 - EN 1339 - EN 1340 - EN 13892-3 - EN 14157 - DIN 52108

The instrument measures a volume loss in a specimen under abrasion test and it’s used in tests such as:

- paving stones

- concrete slabs

- slabs made of natural rocks

- natural stone slabs

The test is performed by positioning a specimen to be verified in an abrasion tester.

Böhme apparatus on the test track on which has been spread normalized abrasive; the grinding wheel it’s made rotate and the specimen submitted to the abrasive load of 294 N for a certain number of cycles.

Before doing a test, establish the specimen’s bulk density by measuring

weight and thickness.

Perform the test for 16 cycles composed of 22 turns each, calculating

at the end a worn as an average loss in volume and weight.

The apparatus is basically composed of:

- cast iron horizontal disc with a speed of 30 rpm and a diameter of 750mm furnished of a 200mm test track to position a specimen.

- Control panel with digital revolutions counter with automatic stop after preset revolutions

- Specimen’s holder