MIDI Concrete Block

Name: MIDI Concrete Block
Brand: Thomas Armstrong (Concrete Blocks) Ltd
SKU: wynPBd4pzyZ2u4hNn5rgvA

Verified by manufacturer 1 month ago

Solid concrete block.

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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.

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.

Uniclass	Pr_20_93_52_01 Aggregate concrete blocksPrimary
CAWS	F10/18 Concrete facing blockwork F10/255 Concrete facing blockwork F10/355 Concrete common blockwork F10/36 Concrete common blockwork

Classification data
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 guidance Available as standard, higher strengths are available to order.
Characteristic value	- Manufacturer guidance 5.5-10.1 N/mm². Depending on size. Specifier to detail.
Category	II.
Freeze/ thaw resistance	Frost resistant.
Thermal conductivity	1.17 W/mK (protected inner leaf). 1.26 W/mK (exposed outer leaf).
Recycled content As defined in clause 7.8 of BS EN ISO 14021	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 guidance Specifier 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. 16.6 kg: block weight.
Sound reduction	51 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