AB Three - Precast concrete interlocking blocks

Allan Block is a hollow-core, dry-stacking concrete block for the construction of retaining walls. Designed with a 3° raised front lip which automatically establishes the setback from vertical.

Manufactured from a mixture of aggregates (65% recycled secondary aggregate content) and cement.

Features and benefits:

• Cost-effective and versatile.
• Offers high performance, quality, and lasting value.
• Expected lifespan of 120 years (if designed and built in accordance with its British Board of Agrément (BBA), Roads and Bridges certificate).
• Includes a hollow-core design which makes blocks easy to handle, promotes drainage and becomes solid when filled with stone.
• Depending on site conditions, walls can be constructed up to 1.1 m in height, using the blocks and granular fill only.
• Taller walls will require reinforcement, most often through the use of Geogrid, No-Fines Concrete or building a double-width gravity wall.
• CE-marked and manufactured in accordance with BS EN 771-3, ISO 9001 and ISO 14001.
• Anti-climb edge.
• No need for pins, clips or mortar.
• Can be constructed regardless of weather conditions.
• Built-in drainage.
• Durable and maintenance-free.
• Freeze-thaw resistance.
• High strength, durable block.
• Efflorescence-free.