PRECON NATURAL WALLING
WALL BLOCK
Precon Natural Walling Stone
BLOCK SIZES
450 x 100 x 215
450 x 100 x 140
450 x 100 x 65
300 x 100 x 215
300 x 100 x 140
300 x 100 x 65
BLOCK TYPE
Pigmented Concrete
TOLERANCES ON WORK:
Length +3 -5mm, width +3 -5mm, height +3 -5mm
COMPRESSIVE STRENGTH
Mean compressive strength of not less than 20N/mm² with a characteristic compressive strength of 17.5N/mm²
DIMENSIONAL STABILITY
0.89mm/m
FLEXURAL BOND STRENGTH
0.26N/mm²
NET DRY DENSITY
2100 kg/m³ (mean)
SHEAR BOND STRENGTH
0.15N/mm²
WATER ABSORPTION
< 8%
THERMAL CONDUCTIVITY (K VALUE)
1.27 W/mK @ P = 50%
1.42 W/mK @ P = 90%
WATER VAPOUR PERMEABILITY
5/15μ
DURABILITY (FREEZE THAW)
Frost Resistant (F2)
WATER ABSORPTION
8.9% Average
AVG. DRY BLOCK WEIGHT PER BLOCK
2.7kg
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