NBS Source
Cellular Dense Concrete Block
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Application

Suitable for use in the following walls:

  • Internal partition walls.
  • BRE Green Guide A+ rated walls.
  • Inner and outer leaves of external cavity walls up to three storeys.
  • Building Regulations (E&W) Approved Document E and Robust Detail acoustic separating walls.

Description

Cellular dense concrete blocks offer a lower weight alternative to solid dense blocks with improved thermal properties. Blinded cells on the upper bed face allows for a full bed of mortar and easier build.


Features and benefits:

  • Durable and resilient block suitable for high strength, acoustic and decorative applications.
  • Manufactured from Class 2 aggregates and consist of up to 30% recycled raw material.
  • Produced to BS EN 771-3.

General information

Color

Grey

Finish

Textured

Material

Concrete

Shape

Rectangle

Size

440 x 215 x 100 mm

440 x 215 x 140 mm

Uniclass 2015

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

Specification data - Aggregate concrete blocks Enhanced data

Standard

To BS EN 771-3.

Block description

Fairtex.

Close-textured finish available for decorative, fair-faced applications.

Standard.

Provides an excellent surface for mortars, renders and plasters.

Configuration

Group 2 to BS EN 1996-1-1.

Compressive strength

-

Mean value

7.3 N/mm².

Characteristic value

5.3 N/mm².

Category

II.

Freeze/ thaw resistance

Frost resistant.

Thermal conductivity

0.88 W/mK (protected inner leaf), 0.92 W/mK (exposed outer leaf).

Thermal resistance

0.11 m² K/W.

Recycled content

30%.

Work sizes (length x width x height)

440 x 215 x 100 mm.

Tolerance category

D1.

Density

-

Gross dry density

1900-2100 kg/m³.

Specifier 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

100 mm.

Weight

14.8 kg.

Block weight.

158 kg/m².

Walled weight.

Moisture movement

0.6 mm/m.

Environmental Product Declaration (EPD)

ISO 14001.

Environmental information

Recycled content

30%

Digital objects

Platform Compatible Version Certified to
Revit

Revit 2016

4

2.0
IFC
-

4

2.0
Download now from NBS National BIM Library

Literature

Concrete Blocks Brochure

Concrete Blocks Brochure

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