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Lignalite 190 mm 7.3 N/mm² Concrete Block - Lightweight Block

Verified by manufacturer 7 months ago

Lignacite Ltd

Close textured, lightweight paint grade concrete blocks.

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Application

Lignalite is ideal when direct application of paint is needed. It is suitable for the construction of both loadbearing and non-loadbearing walls in locations such as:


  • The inner leaves of external cavity walls.
  • Internal walls, including fire break walls.
  • Separating walls.

Description

The 190 mm Lignalite blocks are produced using ultra-lightweight aggregates, resulting in a product that conforms to 20 kg manual handling guidelines. Ideal for all types of commercial project, their close-textured surface is perfect for direct decoration.


Manufactured to BS EN-771-3, Lignalite blocks are light and easy to lay with a technical performance fulfilling most applications.


Features and benefits:

  • Suitable for use in aesthetic applications where the blockwork is required to be directly painted.
  • Conforms to the 20 kg single lift guidance of the Construction (Design and Management) Regulations, and manual handling guidelines.
  • Can be used in loadbearing and non-loadbearing walls.
  • Allows large panels to be designed, reducing the need for wind posts or other structural framing.
  • Lightweight.
  • High technical performance.
  • For use internally, above and below ground.
  • Credits available under BREEAM and Code for Sustainable Homes.
  • CE marked to BS EN 771-3.


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.


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.


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


The 190 mm Lignalite block enables the use of large panel sizes with reduced vertical or horizontal supports. Not only does this provide an immediate cost saving compared with the use of more slender walls, but it also improves the continuity of the blockwork construction process. As fewer structural supports are necessary, the number of connecting ties and movement joints is also reduced.

General information

Color

Grey

Finish

Textured

Guidance for specification option:

Close textured, paint grade.

Material

Concrete

Shape

Rectangle

Length

440 mm

Width

190 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

Product range

Lignalite Ultra-Lightweight Block Range

Specification data - Aggregate concrete blocks

Standard

To BS EN 771-3.

Block description

Loadbearing units for internal walls.

Appearance

Medium grey to buff in colour with a close texture.

Configuration

Group 1.

Compressive strength

-

Mean value

7.3 N/mm².

Category

M4.

Thermal conductivity

0.37 W/m·K at 3% moisture content.

Thermal resistance

0.51 m²K/W.

Work sizes (length x width x height)

440 x 190 x 215 mm.

Tolerance category

D1.

Density

-

Net dry density

1030 kg/m³.

Reaction to fire

Class A1.

Water vapour permeability

5/15 µ.

Moisture movement

<0.9 mm/m.

SpecificHeatCapacity

1000 J/kg/K.

Sound reduction index

No finish: 45 dB Rw; painted: 51 dB Rw.

Fire resistance

Four hours (loadbearing and non-loadbearing).

Air tightness

Painted (one face): 9.1 m³/hr/m²; painted (two faces): 4 m³/hr/m².

Unit weight

19.1 kg.

Sustainability data

Recyclability

100%

Literature

Lignalite 190mm 7.3N/mm2 Data Sheet

Lignalite 190mm 7.3N/mm2 Data Sheet