Optimisation of an abrasion resistance test method on natural stones

The determination of abrasion resistance according to EN 14157 ‘‘Natural stone test method— determination of abrasion resistance’’ is required for the CE (European conformity) marking on natural stones. A great deal of abrasive material is necessary for this test, which makes it relatively costly. Furthermore, Boulonnaise marble, the reference stone, is not easily available. The study reports the assessment of Canaloni (Carrara) marble as an alternative reference material using the Capon apparatus, which demonstrates its suitability for this pur- pose. An evaluation was also made of the effectiveness of the abrasive material (carborundum) after it has been used for the three times stated in the Standard and it was found that its performance remains unchanged, even after a higher number of tests.