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Ash GP 140 mm 10.4 N Coursing Blocks

Verified by manufacturer 7 months ago

Lignacite Ltd

Medium density concrete blocks.

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Application

Typical locations include:

  • The inner and outer leaves of external cavity walls.
  • Internal walls (including fire break walls).
  • Separating walls (including those conforming to Robust Detail party wall specifications).

Description

Ash GP medium density concrete blocks are robust and durable, making them a suitable choice for walls built above and below ground. Manufactured to BS EN 771-3, their textured faces provide a 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:

  • suits all general-purpose walling applications. It is recommended that walls of 215 mm thickness are constructed using 100 mm blocks laid flat.
  • Long service life.
  • Removes the need for on-site cutting, which reduces waste and improves productivity.


Mortar:

Generally, the mortar type for work above ground level should be designation (iii) / Compressive Class M4. Stronger mixes may be required if blocks are used below ground. Consult manufacturer for details.


Movement:

Vertical movement joints should be considered in accordance with masonry design codes and the recommendations of Published Document PD 6697, at 6.0 — 7.0 metre spacings. In areas of increased stress, such as above and below openings in external walls, the blockwork may need to be reinforced to restrain movement.


Design:

The design of walls should be in accordance with relevant design standards including BS 8103-2, BS EN 1996-1-1 and the requirements of the Building Regulations.

General information

Color

Grey

Finish

Textured

Material

Concrete

Shape

Rectangle

Length

440 mm

Width

140 mm

Height

215 mm

Uniclass

Pr_20_93_52_01 Aggregate concrete blocksPrimary

CAWS

F10/18 Concrete facing blockwork

E60/297 Proprietary infill blocks

F10/355 Concrete common blockwork

Product range

Coursing Block Range

Specification data - Aggregate concrete blocks

Standard

To BS EN 771-3, BS EN 9001.

Block description

Coursing blocks.

Appearance

Medium grey in colour with a fine textured surface.

Configuration

Group 1.

Compressive strength

-

Mean value

10.4 N/mm².

Category

M4.

Thermal conductivity

0.47 W/m·K at 3% moisture content; 0.51 W/m·K at 5% moisture content.

Guidance for specification option:

Internal/external use.

Thermal resistance

0.212 m²K/W at 3% moisture content; 0.196 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.

Moisture movement

<0.5mm/m.

Weighted sound reduction index, Rw

Plasterboard on dabs: 48 dB; Plaster finish: 49 dB.

Fire resistance

Non-loadbearing wall (criteria E1): 4 hours; loadbearing wall (criteria RE1): 3 hours.

Guidance for specification option:

See manufacturer's literature for further examples.

Third-party certification

BSI Kitemark approved KM 09694.

Unit weight

5.9 kg.

Sustainability data

Embodied carbon

A1-A3 (production stage) as defined in BS EN 15804

0.17 kg CO₂ eq/kg

Self declared

Literature

Coursing Blocks Range

Coursing Blocks Range

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