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Armstart Concrete Block
Armstart Concrete Block
Armstart Concrete Block

Verified 4 months ago

Thomas Armstrong (Concrete Blocks) Ltd

Armstart Concrete Block 275 mm

Verified 4 months ago

Thomas Armstrong (Concrete Blocks) Ltd

Armstart Concrete Block 215 mm

Verified 4 months ago

Thomas Armstrong (Concrete Blocks) Ltd

Armstart Concrete Block 250 mm

Summary
Medium density lightweight aggregate foundation block.
Medium density lightweight aggregate foundation block.
Medium density lightweight aggregate foundation block.
Third party certification
Color
Grey
Grey
Grey
Finish
Textured
Textured
Textured
Material
Concrete
Concrete
Concrete
Shape
Rectangle
Rectangle
Rectangle
Length
300 mm, 350 mm
300 mm, 350 mm
300 mm, 350 mm
Width
215 mm, 250 mm, 275 mm
215 mm, 250 mm, 275 mm
215 mm, 250 mm, 275 mm
Height
140 mm
140 mm
140 mm
Warranty description
Lifetime
Lifetime
Lifetime

Specification

Standard
To BS EN 771-3.
To BS EN 771-3.
To BS EN 771-3.
Block description
Standard common block.
Standard common block.
Standard common block.
Appearance
Dark Grey.
Dark Grey.
Dark Grey.
Configuration
Group 1.
Group 1.
Group 1.
Compressive strength
-
-
-
Mean value
7.3 N/mm².
7.3 N/mm².
7.3 N/mm².
Category
II.
II.
II.
Freeze/ thaw resistance
Freeze thaw resistant.
Freeze thaw resistant.
Freeze thaw resistant.
Thermal conductivity
0.49 W/mK.
0.49 W/mK.
0.49 W/mK.
Recycled content
40%.
40%.
40%.
Work sizes (length x width x height)
300 x 275 x 140 mm.
350 x 215 x 140 mm.
350 x 250 x 140 mm.
Tolerance category
D1.
D1.
D1.
Density
-
-
-
Gross dry density
1450–1550 kg/m³.
1450–1550 kg/m³.
1450–1550 kg/m³.
Net dry density
1450–1550 kg/m³.
1450–1550 kg/m³.
1450–1550 kg/m³.
Reaction to fire
Class A1 to BS EN 13501-1.
Class A1 to BS EN 13501-1.
Class A1 to BS EN 13501-1.
Water vapour permeability
5/15 µ.
5/15 µ.
5/15 µ.

Additional properties

Moisture movement
0.06 mm/m.
0.06 mm/m.
0.06 mm/m.
Weight
17.7 kg.
16.2 kg.
18.8 kg.

Sustainability data

Contains Red List materials
No
No
No
Country of material origin
United Kingdom
United Kingdom
United Kingdom
Country of product manufacture
United Kingdom
United Kingdom
United Kingdom
Material
Concrete
Concrete
Concrete
Embodied carbon
12.8 kg CO₂ eq/m²
12.8 kg CO₂ eq/m²
12.8 kg CO₂ eq/m²
Recyclability
100%
100%
100%
Recycled content
40 %
40 %
40 %
Expected Life
Lifetime
Lifetime
Lifetime