Gray stone of Vicenza


GREY ALPS (EC)

Petrographic description: biosparrudite (Test UNI EN 12407: 2007)
Reaction to fire: Class A1 [Without testing (see Decision 96/603 / EC and subsequent mod.)]
Flexural strength (thickness: 30 mm): (Test UNI EN 12372: 2007)
7.2 MPa (average value)
5.7 MPa (minimum expected value)
0.79 MPa (standard deviation)
Flexural strength (thickness: 40 mm): (Test UNI EN 12372: 2007)
8.7 MPa (average value)
7.8 MPa (minimum expected value)
0.45 MPa (standard deviation)
Uniaxial compressive strength: (Test UNI EN 1926: 2007)
49.0 MPa (average value)
41.4 MPa (minimum expected value)
4.0 MPa (standard deviation)
Frost resistance by changing the compression strength: (Test UNI EN 12371: 2010)
Variation of the uniaxial compressive strength (after 48 cycles -12 ° C / + 20 ° C): -18.4%
Water absorption: 5.3% (Test UNI EN 13755: 2008)
Bulk density: 2260 kg / m (Test UNI EN 1936: 2007)
Abrasion resistance: 26.0 mm (test UNI EN 14157: 2005 Method A)
Slip resistance (finishing sawn): 72 (wet) (Test UNI EN 1341: 2003 App. C)

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