Standards: EN 1338:2004, 1338, 1339, 1340, EN 13748-2,13892-3, EN 14157, DIN 52108
Used to measure volume loss in a specimen under abrasion stress
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 a 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 turn each, calculating at the end a worn as a 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.
- Separate control panel with digital revolutions counter with automatic stop after preset revolutions.
- Specimen’s holder.
- Adjustable charger used to produce a force of 294 N ± 3 N on a specimen.
Power supply: 230V 50Hz 1PH 800W
Dimension: 1500x1000x850 mm
Weight: 320 kg approx.