Cellular dense concrete blocks

Cellular dense concrete blocks

A cellular block contains one or more formed voids that do not fully go through the block. This differs from a hollow block which contains one or more voids which pass through the block from top to bottom.

All our cellular dense concrete blocks are low carbon as standard - up to an 50% carbon reduction compared with using OPC (Ordinary Portland Cement).

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Sustainable aggregates

Sustainable aggregates

Cellular dense concrete blocks are produced using responsibly sourced and sustainable high-quality sands and aggregates.

A1 Fire Rated

A1 Fire Rated

These blocks have a Class A1 rating, indicating that they are incombustible and do not contribute to fire.

Impressive pedigree

Impressive pedigree

Our blocks have been used for the Etihad South Stand, Anfield Road Stadium, Langtree Park Rugby League Stadium and more.

Excellent sound reduction

Excellent sound reduction

The product has excellent noise reduction characteristics and is also extremely resilient to ambient conditions.

Paint grade offered

Paint grade offered

Available in a close textured/paint grade finish.

British standards

British standards

EN1996-1 Group 1 Manufacturing Standard BS EN 771-3:2011.

Cellular dense concrete blocks - a special type of hollow block

Cellular dense blocks often make construction easier as they allow for a full bed of mortar on one face of the block. They are similar to regular hollow blocks in terms of their composition and manufacturing process, but they have a different design. Instead of having two large hollow spaces, our cellular blocks have two or four smaller cavities or cells. This gives them a higher thermal and sound insulation rating compared to solid blocks.

Cellular blocks are commonly used in the construction of walls and partitions in both residential and commercial buildings. They are particularly popular in areas with high noise levels or extreme weather conditions due to their superior insulation properties.

What are the advantages of cellular dense blocks?

Compared with using a solid block, cellular blocks offer several advantages primarily due to their reduced weight. Being lighter than a solid block means they are easier to handle and have a lower floor or foundation loading per m2.

Cellular blocks are used in a variety of construction applications. They are commonly used in the construction of walls and partitions, especially in areas that require higher levels of thermal and sound insulation.

The benefits of using cellular blocks include their superior insulation properties, which can significantly reduce energy costs and improve the comfort of the building. Additionally, their lighter weight design makes them easy to handle and install, reducing construction time and costs.

At CCP we produce two cellular dense blocks (100mm and 140 mm thickness). Both blocks have a compressive strength of 7.3 N/mm2.

Our hollow blocks are manufactured in accordance with EN1996-1 Group 1 Manufacturing Standard BS EN 771-3:2011.

Where are cellular dense blocks used?

Our cellular blocks can be used in most situations where a solid concrete block would be used, except for demanding requirements, such as where a maximum wall mass is required for airborne sound insulation or higher strength support is needed.

Typical uses include internal partitions, as infills in framed structures, and as inner leaves of cavity walls. The cellular blocks can be used below the damp proof course both internally and externally. They can also be used to construct a sound-separating wall, providing acoustic test evidence has been carried out.

Cellular blocks are slightly more expensive to produce than regular solid blocks due to their more complex design process. However, their advantages often outweigh the small cost difference.

Are CCP’s hollow concrete blocks paint grade?

Yes. Our hollow concrete blocks are suitable for painting.

What size are CCP’s cellular dense concrete blocks?

Our cellular dense concrete block is 440 mm wide x 215mm high.

We offer two thicknesses 100mm and 140mm

Calculate your carbon saving by choosing Greenbloc

How many concrete blocks do you need?

Figures compared against a dense concrete block manufactured with 100% Ordinary Portland Cement. Figures based on Greenbloc Standard.

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Turning off

low energy lights for a year

Flying to London to New York

From London to New York

times in a plane

Driving a petrol car

Driving a petrol car


Equivalent of planting trees

Equivalent of planting

trees per year