NEGRO TEZAL

Country of origin Spain

VISUAL DESCRIPTION

Dark grey igneous rock with coarse grained size.

FINISHES

Flamed, bush hammer dressed, sand blasting, sawn, brushed, honed, polished,…

FORMATS

Slabs, tiles and all kind of pieces commercials and to measure.

APPLICATIONS

Universal use: outside and inside. Suitable for decorative uses.

STANDARD	TEST	RESULT
UNE-EN 12407	Petrographic examination	Granodiorita biotítica en paso a toanlita
UNE-EN 1936	Apparent density	2800 kg/m³
UNE-EN 1936	Open porosity	0,3 %
UNE-EN 13755	Water absorption at atmospheric pressure	0,1 %
UNE-EN 14157	Abrasion resistance	15,4 mm
UNE-EN 13364	Breaking load at dowel hole	2000 N
UNE-EN 1926	Compressive strength	155 MPa
UNE-EN 12372	Flexural strength	13,2 MPa
UNE-EN 12371	Frost resistence
	Decrease of Rf after 12 cycles	0,6 %
	Decrease of Rf after 48 cycles	0,1 %
UNE-EN 14066	Resistence to ageing by termal shock
	Visual alterations	Not alter
	Mass variation	0,01 %
	Variation of dynamic elastic modulus of elasticity	11 %
UNE-EN 14231	Slip resistance (polished)
	Dry test (SRV)	88
	Wet test (SRV)	11
	Slip resistance (honing)
	Dry test (SRV)	68
	Wet test (SRV)	26
Radiation description	Radiation Protection 112	1,58 (*)
	(*) Values under 6 comply with established limits in RD 78/2001 about Sanitary Protection against ionized radiations

Theese results only relate with tested samples, so only may be used like guidance..

The material