- EN 1338:2004
- EN1339
- EN 1340
- EN 13892-3
- EN 14157
- DIN 52108
- EN 13748-2
This instrument measures a volume loss in a specimen under abrasion test and it is 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 a abrasion tester Böhme apparatus on the test track on which has been spread normalized abrasive;
The grinding wheel is 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: 1500x1000xh850 mm
Weight: 320 Kg approx.
VOLUME LOSS UNDER ABRASION
- EN 1338
- EN 1339
- EN 1340
- EN 13748-2
- EN 13892-3
- EN 14157
- DIN 52108
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