Hollow Dense Concrete Block
Verified by manufacturer 4 months ago
Hollow Dense Concrete Block 215 mm
Hollow Dense Concrete Block 215 mm
ISO 9001 Quality Management
Certificate type
Hollow dense concrete blocks suitable for agricultural and commercial applications.
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.
Description
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.
General information
Color | Grey |
Finish | Textured |
Material | Concrete |
Shape | Rectangle |
Length | 440 mm |
Width | 140 mm 215 mm |
Height | 215 mm |
Warranty description | Lifetime |
Uniclass | |
CAWS | F10/355 Concrete common blockwork F10/36 Concrete common blockwork |
Specification data - Aggregate concrete blocks
Standard | To BS EN 771-3. |
Block description | Standard common block. |
Configuration | Group 2. |
Compressive strength | |
Mean value | 7.3 N/mm². |
Characteristic value | 4.7 N/mm². |
Category | II. |
Freeze/ thaw resistance | Freeze thaw resistant. |
Thermal conductivity | 0.88 W/mK (inner leaf). |
Recycled content | 20%. |
Work sizes (length x width x height) | 440 x 215 x 215 mm. |
Tolerance category | D1. |
Density | |
Gross dry density | 1850-2100 kg/m³.Manufacturer guidanceSpecifier 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 | 215 mm. |
Weight | 257 kg/m²: walled weight. |
Moisture movement | 0.6 mm/m. |
Environmental Product Declaration (EPD) | ISO 14001. |
R-Value | 0.24 m² K/W. |
Sound reduction | 51 dB (Rw). |
Sustainability data
Contains Red List materials | No |
Country of material origin | United Kingdom |
Country of product manufacture | United Kingdom |
Material | Concrete |
Embodied carbonA1-A3 (production stage) as defined in BS EN 15804 | 12.8 kg CO₂ eq/m² Self declared Guidance for specification option: 12.8 kgCO2e/m². |
Recyclability | 100% |
Recycled contentAs defined in clause 7.8 of BS EN ISO 14021 | 20 % |
Expected Life | Lifetime |
BIM objects
NBS BIM Object Standard
This BIM object has been authored to meet the requirements of the NBS BIM Object Standard.
Find out more about the NBS BIM Object Standard.
| Platform | Compatible | Version |
|---|---|---|
 IFC | - | 4 |
 Revit | Revit 2016 | 4 |
Third party certifications
ISO 9001 Quality Management
ISO 9001:2015 Quality Management
Literature
Concrete Blocks Brochure
Hollow Dense Block Datasheet
U-Value Tables