CUPA 4
Non-metamorphosed slate formed due to tectonic pressure. A bluish-black slate with thin layers and a smooth surface.
Split with medium thicknesses of 3.75 mm, 5 mm, and 7.5 mm.
Options
R – Relief:
- Naturally textured surface that retains the roughness of the stone.
H – Honed:
- Smooth and matte surface, lightly polished.
Natural:
- Raw, unprocessed surface, closest to the appearance of the stone after extraction.
Origin
Quarry Armadilla.
Benuza (León), Spain.
Start Date of Operations
In operation since 1968.
Dimensions
Sizes: Range from 20 x 15 cm to 60 x 45 cm
Thickness: 5 mm, 6.5 mm, 7.5 mm, and 9 mm
Options
R, H, Natural
Technical Specifications
| Water Absorption | Carbon Content | MOR (Flexural Strength) | SO₂ Exposure Test | Freeze and Thaw Test | Thermal Cycle Test |
|---|---|---|---|---|---|
| 0.17% Code: W1 (< 0.4%) | 0.40% Meets requirements (< 1.5%) | Longitudinal 56.6 MPa | S1 | Meets requirements < 0.6% | T1 |
Completed Works
