Fibo 850 Concrete Blocks

General purpose, lightweight concrete blocks for walling applications. The blocks are dark grey in colour with an opened textured surface. Available in 100 and 140 mm widths, solid form only.

Features and benefits:

• Provides a high level of thermal insulation, reducing the amount of additional insulation required after installation.
• Lightweight, easy to handle, and quick to lay.
• Loadbearing.
• Provides a high level of fire protection (Class A1).
• For use internally and externally, above and below ground.
• Provides a strong background for direct application of plasters and renders (no bonding agents required).
• The clay aggregate is bloated through heat expansion to create a low density, porous surface with numerous cavities.
• Fixings will be held securely by the block (and can be nailed in directly).
• Credits available under BREEAM and Code for Sustainable Homes.
• CE marked to BS EN 771-3.
• Can be used to satisfy the requirements of Part L of the Building Regulations.

The mortar type for work above ground level should be designation (iii) / Compressive Class M4. Stronger mixes may be used only with the permission of the designer. Stronger mixes may also be required for work below ground in accordance with PD 6697. Consult manufacturer for details.

Movement joints should be considered in accordance with PD 6697 at approximately 6 m spacings. In areas of concentrated stress, such as those above and below openings, consideration should be given to the use of bed joint masonry reinforcement.

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.