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Exploradora de
Calcários do
Centro, Lda.

Alpinina

MACROSCOPIC DESCRIPTION

Grey limestone with golden spots, microcrystalline, with recrystallised zones. Tectonised.

RECOMMENDED USAGE

Exterior and interior cladding.

PHYSICAL-MECHANICAL CHARACTERISTICS

Compressive Strength:

1150 Kg/cm2

Compressive Strength after Frost Test:

962 Kg/cm2

Flexural Strength:

183 Kg/cm2

Apparent Density:

2696 kg/m3

Water Absorption at Atmospheric Pressure:

0,18 %

Open Porosity:

0,48 %

Coefficient of Linear Thermal Expansion:

4,3 X 10^-6 per ºC

Wear Resistance:

1,9 mm

Impact Resistance (Minimum Drop Height):

45 cm

CHEMICAL ANALYSIS

SiO2

0,10 %

Al2O3

0,67

Fe2O3

0,08

MnO

-

CaO

54,79

MgO

0,52

Na2O

0,05

K2O

0,12

TiO2

-

P.R.

43,5

CO2

43,57