Verified by manufacturer over a year ago
General purpose, medium density concrete blocks.
Suitable for use in commercial and housing projects.
Can be used to construct internal walls in commercial, industrial and leisure buildings. The blocks can be used for the following:
The blocks can accommodate drylining, dense plaster, finishing coats and external rendering.
Drylining:
Standard plasterboard can be fixed with adhesive dabs or onto timber battens or metal studs.
Plaster:
Rendering:
Consult manufacturer for further finish recommendations.
Ash GP medium density concrete blocks are robust and durable, making them the perfect choice for walls built above and below ground. Manufactured to BS EN 771-3, their textured faces provide an excellent surface for mortars, renders and plasters. They also provide a strong base for holding fixings.
Ash GP blocks contain a proportion of recycled materials, and their sustainability performance has been verified through an Environmental Performance Declaration (EPD).
Features and benefits:
Sound properties:
Ash GP blockwork provides excellent levels of sound insulation between buildings and adjoining rooms. It can be used in cavity party wall constructions in dwellings, satisfying the specifications for lightweight blockwork in accordance with Building Regulations’ Approved Document E. It can also be used to construct party walls meeting Robust Detail specifications (e.g., Robust Details E-WM-2, 4, 8, 11, 14, 17, 20, 21, 22, 27, 28 and 33).
Mortar:
The mortar type for work above ground level should be designation (iii) / Compressive Class M4. Stronger mixes may be used only with the permission of the designer. Stronger mixes may also be required for work below ground in accordance with PD 6697. Consult manufacturer for details.
Movement joints:
Service life:
Sustainability:
Lignacite Ltd also meets the requirements of BES 6001 – Framework Standard for the Responsible Sourcing of Construction Products (Certificate No: BES 580823). This independently awarded Responsible Sourcing Certification confirms that our products have been made with constituent materials that have been responsibly sourced. This extends to organisational governance, supply chain management and environmental and social aspects, all of which must be addressed in order to ensure the responsible sourcing of construction products. Certification to BES 6001 will allow credits to be gained under environment assessment schemes such as BREEAM.
Color | Grey |
Finish | Grooved |
Material | Concrete |
Shape | Rectangle |
Length | 440 mm |
Width | 140 mm |
Height | 215 mm |
Uniclass | |
CAWS | E60/297 Proprietary infill blocks F10/18 Concrete facing blockwork F10/355 Concrete common blockwork |
Product range |
Standard | To BS EN 771-3. |
Block description | Medium density, load bearing block for general purpose walling applications. |
Appearance | Scratched surface to aid the key of plaster and render finishes. |
Configuration | Group 1. |
Compressive strength | |
Mean value | 10.4 N/mm². |
Category | M4. |
Thermal conductivity | 0.47 W/m·K at 3% moisture content (internal use), 0.51 W/m·K at 5% moisture content (external use). |
Thermal resistance | 0.298 m²K/W at 3% moisture content; 0.274 m²K/W at 5% moisture content. |
Work sizes (length x width x height) | 440 x 140 x 215 mm. |
Tolerance category | D1. |
Density | |
Net dry density | 1450 kg/m³. |
Reaction to fire | Class A1. |
Water vapour permeability | 5/15 µ. |
Moisture movement | <0.5 mm/m. |
SpecificHeatCapacity | 1000 J/kg/K. |
Weighted sound reduction index, Rw | 48–49 dB (dependent on application). Guidance for specification option: Plaster finish: 49 dB; plasterboard on dabs: 48 dB. |
Fire resistance | Non-loadbearing wall (criteria E1): 3 hours; loadbearing wall (criteria RE1): 4 hours. |
Third-party certification | BSI Kitemark approved. |
Unit weight | 19.6 kg. Guidance for specification option: Laid weight including mortar: 210 kg/m². |
Country of material origin | Europe |
Country of product manufacture | United Kingdom |
Embodied carbonA1-A3 (production stage) as defined in BS EN 15804 | 0.16 kg CO₂ eq/kg Self declared Guidance for specification option: Rounded down to two decimal places; manufacturer's value is 0.165 kg·CO2e/kg. This figure is derived from the carbon value as per the EPD divided by the unit mass. |
Recyclability | 100% |
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