Ardósia de Canelas

Schist and Slate

Ardósia de Canelas

Schist and Slate

Dark-coloured, grey-bluish ardosia slate. Finely granulated, homogeneous, with a clear schist cleavage and small, very scattered nodules.

Other Names
Ardósia de Arouca, Ardósia de Canelas – Nomenclatura EN12440
Petrographic Classification
Slate
Occurrence
Canelas – Arouca (Aveiro)
Origin
Aveiro
Common Uses
Coverings, wall coatings and other indoor and outdoor applications. Pavement application is conditioned by the expected influx.
Available Reserves
Available
Source
Rochas Ornamentais Portuguesas (http://rop.lneg.pt/rop/FormProduto.php)

Properties

  • Compression breaking load
    156 Mpa
  • Compression breaking load after freezing test
    138 Mpa
  • Bending strength
    33 Mpa
  • Volumetric weigth
    2820 kg/m3
  • Water absorption at N.P. conditions
    0,6 %
  • Aparent porosity
    1,2 %
  • Thermal linear expansion coeficient
    8,6 X 10 -6 perº C
  • Abrasion test (Amsler-Laffon)
    5,0 mm
  • Impact test: minimum fall height
    110 cm

  • Note: After 25 frost-defrost cycles the test pieces did not present any modifications in colour or structure.

Companies

Processing
Extraction
  • Ardósias Valério & Figueiredo, Lda.
    Arouca
  • Ardósias Valério & Figueiredo, Lda.
    Arouca
  • SOLICEL – Sociedade do Centro Industrial de Esteios de Lousa, Lda.
    Vila Nova de Foz Côa
  • Transgranitos – Mármores e Granitos do Alto Tâmega, Lda.
    Vila Pouca de Aguiar