Lignacrete 140 mm Hollow 7.3 N Concrete Blocks - High Density Robust Loadbearing Units

Name: Lignacrete 140 mm Hollow 7.3 N Concrete Blocks - High Density Robust Loadbearing Units
Brand: Lignacite Ltd
SKU: 64pcgRXZnFaC3x3MZPCo71

Verified by manufacturer 20 hours ago

Lignacite Ltd

Product certifications:

EPD
Certificate type
BSI Kitemark
Certificate type

Part of a range of high density, robust, loadbearing units, suitable for internal and external walls.

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Application

Lignacrete Hollow blocks are ideal for constructing large internal walls in agricultural, commercial and recreational buildings. Walls can be loadbearing or non-loadbearing. Applications include:

External walls
Internal walls, including fire break walls
Retaining and bund walls - if required, the vertical cores can be reinforced for additional strength

Lignacrete Hollow blocks are medium grey to buff in colour. They are capable of being finished with all recognised treatments, including plaster, drylining and render, as well as cladding treatments. Paint Grade blocks can be directly painted.

Description

Lignacrete Hollow dense concrete blocks are robust and durable, with a technical performance that will fulfil most applications. They are manufactured to BS EN 771-3 and are available in Standard and Paint Grade (close textured for direct painting).

Lignacrete Hollow blocks have a face size of 440mm x 215mm.

Features and benefits:

Loadbearing and robust
Can accept rebar where additional strengthening is required
Highly durable material, ensuring a long lifespan for buildings
Convenient to handle
Credits available under BREEAM
BSI Kitemarked to BS EN 771-3

General information

Color	Grey Guidance for specification option: Paint grade and standard. Fair faced - natural.
Material	Concrete Aggregate Manufacturer guidance Dense aggregate concrete.
Shape	Rectangle
Length	440 mm
Width	140 mm
Height	215 mm

Uniclass	Pr_20_93_52_01 Aggregate concrete blocksPrimary
CAWS	E60/297 Proprietary infill blocks F10/18 Concrete facing blockwork F10/355 Concrete common blockwork

SKU Code	DH1407

Product range	Lignacrete Dense Block Range

Specification data - Aggregate concrete blocks

Classification data
Standard	BS EN 771-3.
Block description	Common block (standard). Guidance for specification option: For locations where the surface will not be visible e.g. for plastering or use below ground. Paint-grade block. Guidance for specification option: For locations where a consistent close textured face is required as a background for direct painting. Manufacturer guidance High density, robust, loadbearing units for internal and external walls.
Appearance	Medium grey to buff in colour with a texture.
Configuration	Group 2. Guidance for specification option: Hollow.
Compressive strength	-
Mean value	7.3 N/mm².
Category	1.
Thermal conductivity	1.33 W/m·K at 3% moisture content (internal use), 1.43 W/m·K at 5% moisture content (external use).
Thermal resistance	0.173 m²K/W at 3% moisture content; 0.165 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	2000 kg/m³.
Reaction to fire	Class A1.
Water vapour permeability	5/15 µ.
Moisture movement	<0.6 mm/m.
Weighted sound reduction index, Rw	Plaster finish: 52 dB; plasterboard on dabs: 50 dB; paint finish: 48 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	19 kg. Guidance for specification option: Laid weight including mortar: 204 kg/m².

Sustainability data

Contains Red List materials	No
Country of material origin	United Kingdom
Country of product manufacture	United Kingdom
Material	Concrete Aggregate Manufacturer guidance Dense aggregate concrete.
Carbon dioxide equivalent
Carbon dioxide equivalent, as defined in BS EN 15804 Certified
Stage Normalised unit (kg CO₂ eq/kg) Declared unit (kg CO₂ eq/m²) Stage:A1–A3 ('Production stage') Normalised unit : 0.056 (kg CO₂ eq/kg) Declared unit : 15.7 Lower emissions Value guidance: A1-A3 Rounded down to two decimal places; manufacturer's value is 0.126 kg·CO2e/kg. Derived from the carbon value as per the EPD (23.6 kg·CO2e) divided by the unit mass (186 kg/m²).
Recyclability	100%
Expected Life	100 year Guidance for specification option: When properly constructed, the durability of walls built using Lignacrete products will match that of traditional masonry and will fulfil their intended function for the life of the building in which they have been installed (typically 100 years). The blocks themselves will require no maintenance. Maintenance for walls will normally include items such as the replacement of sealant in movement joints and at junctions / openings. Repointing for walls that are exposed to the elements may be necessary towards the end of its service life.