Weiberner tuff is a fine-grained type of igneous volcanic rock with an aphanitic to porphyritic texture; a beige primary colour and different sized, dark basalt and pumice inclusions. Weiberner tuff is predominantly used in facade engineering as well as for Building Ornaments, Flagstone,Coping, Pavers, Slabs, Sculptures, Window Sills, Stairs.
Gross density: 1.6 to 1.8 g/cm3
Pressure resistance (Compressive Strength): 9.67 N/mm2
Bending tensile strength: 0.5 N/mm2
Breaking load at anchor hole: 241 N (for 4.2 cm thickness)
Absorption of water: 22.2 vol.-%
frost-proof: yes