Ash GP 140 mm 7.3 N Concrete Blocks
Verified by manufacturer over a year ago
General purpose, medium density concrete blocks.
Application
Ash GP blocks suit all general-purpose walling applications. It is recommended that walls of 215mm thickness are constructed using 100mm blocks laid flat.
Can be used to construct internal walls in commercial, industrial and leisure buildings. The blocks can be used for the following:
- The inner and outer leaves of external cavity walls;
- Internal walls including fire break walls;
- Separating walls including those conforming to Robust Detail specifications;
- External and internal walls below ground (3.6 N/mm² blocks can be used in both inner leaf and internal walls; 7.3 N/mm² blocks to other locations);
- Infill units to beam and block flooring.
Description
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:
- Also available in 100 mm thickness (specified separately).
- Also available in mean unit strengths of 3.6 or 10.4 N/mm², in both in 100 or 140 mm thicknesses (specified separately).
- Robust and durable.
- Good surface key for the direct application of plasters and renders.
- For use internally and externally, above and below ground.
- High levels of air tightness, sound insulation and fire resistance.
- Provides a strong background for holding fixings.
- Over one-third of the materials come from sustainable sources.
- Credits available under BREEAM and Code for Sustainable Homes.
- CE marked to BS EN 771-3.
- Can be used to satisfy the requirements of Part L of the Building Regulations.
- Good technical performance, high recycled content
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:
Generally, the mortar type for work above ground level should be designation (iii) / Compressive Class M4. Designation (ii) / Compressive Class M6 is needed for work below ground in conditions where there is a risk of saturation with freezing. Consult manufacturer for details.
Movement joints:
Vertical movement joints should be considered in accordance with masonry design codes and the recommendations of Published Document PD 6697, at 6.0-8.0 metre spacings. In areas of raised stress, such as above and below openings in external walls, the blockwork may need to be reinforced to restrain movement.
General information
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 |
Specification data - Aggregate concrete blocks
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 | 7.3 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. |
Sustainability data
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 0.168 kg·CO2e/kg. This figure is derived from the carbon value as per the EPD divided by the unit mass. |
Recyclability | 100% |
Literature
Ash GP Datasheet
Case studies
The Paddocks
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