MIDI Concrete Block
Verified by manufacturer 4 months ago
ISO 9001 Quality Management
Certificate type
Solid concrete block.
Application
Suitable for use in the following:
- Walls below DPC.
- Internal partition walls.
- Inner and outer leaf of external cavity walls over three storeys.
- Acoustic separating party walls to Building Regulations (E&W) Approved Document E and Robust Details.
- Provides an excellent surface for mortars, renders and plasters.
Description
MIDI blocks offer the same characteristics of a 140 mm dense concrete block but at only 66% of the weight.
Features and benefits:
- Manufactured to BS EN 771-3.
- Manufactured from Class 2 aggregates.
- 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 | 290 mm 300 mm |
Width | 140 mm |
Height | 215 mm |
Warranty description | Lifetime |
Uniclass | |
CAWS | F10/18 Concrete facing blockwork F10/255 Concrete facing blockwork 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. |
Appearance | Dark grey. |
Configuration | Group 1. |
Compressive strength | |
Mean value | 7.3 N/mm².10.4 N/mm².Manufacturer guidanceAvailable as standard, higher strengths are available to order. |
Characteristic value | Manufacturer guidance5.5-10.1 N/mm². Depending on size. Specifier to detail. |
Category | II. |
Freeze/ thaw resistance | Frost resistant. |
Thermal conductivity | 1.17 W/mK (protected inner leaf). |
Recycled content | 20%. |
Work sizes (length x width x height) | 290 x 215 x 140 mm. |
Tolerance category | D1. |
Density | |
Gross dry density | 1850-2100 kg/m³.Manufacturer guidanceSpecifier to detail. |
Reaction to fire | Class A1 to BS EN 13501-1. |
Water absorption by capillarity | 90 g/(m2x xs-0.5). |
Water vapour permeability | 5/15 µ. |
R-Value | 0.12 m² K/W. |
Weight | 266 kg/m²: walled weight. |
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 |
Third party certifications
ISO 9001 Quality Management
ISO 9001:2015 Quality Management
Literature
Concrete Blocks Brochure
MIDI Dense Concrete Block Datasheet
U-Value Tables