Fibo 950 100 mm 7.3 N Concrete Block Range

Fibo 950 super lightweight concrete blocks are suitable for general-purpose walling applications. They provide a good base for plasters, renders and fixings.

They are also Category 1 masonry units manufactured under a BSI-certified Quality Management System, which is BS EN 9001 compliant.

Manufactured to BS EN 771-3, they consist of expanded clay aggregates and a mixture of other naturally occurring raw materials and cement. The clay aggregate is produced from carefully selected clays, which are bloated through heat expansion to create a low density, porous aggregate with numerous cavities. This makes Fibo 950 incredibly light and thermally efficient.

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).
• Fixings will be held securely by the block (and can be nailed in directly).
• Certification to BES 6001 will allow credits to be gained under environment assessment schemes such as BREEAM.
• CE marked to BS EN 771-3.
• For 3.6 N/mm² compressive strength, see Fibo 850 blocks; consult manufacturer for details.

Generally, the mortar type for work above ground level should be designation (iii) / Compressive Class M4. However, where it is needed to maximise the loadbearing capacity of the wall, designation (ii) / Compressive Class M6 mixes should be specified. Stronger mixes may also be required for work 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 6.0-8.0 metre spacings. In areas of raised stress, such as above and below openings in external walls, the blockwork may need to be reinforced to restrain movement.

For use in separating walls meeting the requirements of Part E of the Building Regulations, we recommend the use of products from the Ash GP and Lignacrete ranges.