Hollow Dense Concrete Block

Name: Hollow Dense Concrete Block
Brand: Thomas Armstrong (Concrete Blocks) Ltd
SKU: 77i2jw4eN9TZCzQooqeZJq

Verified by manufacturer 1 month ago

Hollow Dense Concrete Block 140 mm

Hollow dense concrete blocks suitable for agricultural and commercial applications.

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BOS

Application

Suitable for use in the following walls:

Large, external wall panels are required, e.g. sheds, bunkers, retaining walls.
Some or all of the cores can be filled with concrete and steel rebar to form extremely strong, reinforced walls with high resistance to lateral loads, ideal for lining swimming pools, ponds etc.
Inner and outer leaf of cavity walls over three storeys, internal partition walls, Part E and robust details acoustic separating walls, block and beam floor infill, foundation walls below DPC, decorative facing walls.

Hollow dense concrete blocks suitable for agricultural and commercial applications.

Features and benefits:

Manufactured to BS EN 771-3.
Strong, reinforced walls can be constructed quickly and economically.
Manufactured from Class 2 aggregates and consist of up to 20% recycled raw material.
Standard texture finish provides an excellent surface for mortars, renders and plasters.

Uniclass	Pr_20_93_52_01 Aggregate concrete blocksPrimary
CAWS	F10/355 Concrete common blockwork F10/36 Concrete common blockwork

Classification data
Standard	To BS EN 771-3.
Block description	Standard common block.
Configuration	Group 2.
Compressive strength	-
Mean value	7.3 N/mm².
Characteristic value	5.1 N/mm².
Category	II.
Freeze/ thaw resistance	Freeze thaw resistant.
Thermal conductivity	0.88 W/mK (inner leaf). 0.92 W/mK (outer leaf).
Recycled content As defined in clause 7.8 of BS EN ISO 14021	20%.
Work sizes (length x width x height)	440 x 215 x 140 mm.
Tolerance category	D1.
Density	-
Gross dry density	1850-2100 kg/m³. Manufacturer guidance Specifier to detail.
Net dry density	2000 kg/m³.
Reaction to fire	Class A1 to BS EN 13501-1.
Water absorption by capillarity	90 g/(m2 x s-0.5).
Water vapour permeability	5/15 µ.
Thickness	140 mm.
Weight	193 kg/m²: walled weight. 19.6 kg: block weight.
Moisture movement	0.6 mm/m.
Environmental Product Declaration (EPD)	ISO 14001.
R-Value	0.16 m² K/W.
Sound reduction	48 dB (Rw).

Contains Red List materials	No
Country of material origin	United Kingdom
Country of product manufacture	United Kingdom
Material	Concrete
Carbon dioxide equivalent
Carbon dioxide equivalent, as defined in BS EN 15804 Self-declared
Stage Normalised unit (kg CO₂ eq/kg) Declared unit (kg CO₂ eq/m²) Stage:A1–A3 ('Production stage') Normalised unit : Declared unit : 8.98 Lower emissions Value guidance: A1-A3 12.8 kgCO2e/m².
Recyclability	100%
Recycled content As defined in clause 7.8 of BS EN ISO 14021	20 %
Expected Life	Lifetime