Question 1

How do I choose between different sizes of dense blocks?

Accepted Answer

Selection depends on your project's load demands, wall thickness, and overall site footprint. For internal walls, partitioning, or non-structural purposes, 100mm blocks are commonly suitable due to their ease of handling. For load-bearing walls, foundations, and structures requiring extra support, heavier, 7N dense blocks are recommended for their superior strength and stability. Always consider the specific structural requirements and consult technical specifications or a structural engineer to ensure you select the most appropriate size for safety and durability.

Question 2

How do I ensure proper installation of dense concrete blocks?

Accepted Answer

Proper installation requires using high-quality mortar suited to the specific application, ensuring each course is perfectly level, and verifying alignment with a spirit level. For load-bearing or structural walls, it’s advisable to consult a structural engineer to ensure compliance with UK building regulations and standards. Additionally, accurate site measurement, correct jointing, and proper reinforcement (where applicable) are vital for long-term stability, safety, and structural integrity of the wall.

Question 3

Can dense concrete blocks be used for thermal insulation?

Accepted Answer

While dense concrete blocks offer excellent thermal mass, they typically require additional insulation to achieve high energy efficiency standards. Their durability and fire-resistant properties make them ideal support layers for insulation materials, helping to enhance overall thermal performance when combined with suitable insulation solutions, ensuring compliance with UK building regulations.

Dense concrete blocks

Concrete Block Solid Dense Standard 7.3N 440 x 215 x 140mm

Hollow Dense Concrete Block 7.3N 215mm

Solid Dense 7.3N Concrete Block Grey 100mm

Tarmac Concrete Block Topcrete Standard Solid Block 7.3N 440 x 100 x 215mm

Lignacrete Solid Dense Block 7.3N 440x215x100mm

Tarmac Topcrete Block Dense 7.3N 140mm

PD Edenhall Dense Concrete Common Brick Grey 215mm X 100mm X 65mm

Interfuse Solid Dense Concrete Block 7N 140mm

Plasmor Stranlite Standard Blocks 100mm 7.3N

CCP Modulite Medium Dense Block 7.3N 440 x 215 x 100mm

Marshalls Standard Concrete Block Paving 200 x 100 x 50mm Charcoal

Thermalite Hi-strength Block 7.3N 215mm

Concrete Gravel Board. Rock Faced Medium Profile 305mm

Lignacite Block 440mm X 215mm 3.6N 850kg/m3

Stranlite 7.3N 100mm Medium Dense Standard Block

FORTERRA Evalast Solid Dense Block 7.3N 440 x 215 x 100mm

STOCKS INSULITE SOLID BREEZE BLOCK 100mm 7.3N

Tarmac Topcrete Solid Med Density Concrete Block 7.3N 100mm

Besblock 100mm Insulite Solid 7.3N Standard

215mm Masterblock Masterdenz Solid Concrete Block 7.3N 215mm X 440mm

Solid Dense 7.3N Concrete Block Grey 140mm

Solid Medium Density Concrete Block 7.3N 140mm

CCP HOLLOW CONSOLITE DENSE BLOCK 215mm 7.3N 353910

ARMSTRONG SOLID DENSE CONCRETE BLOCK B&v 140mm 7.0N

Stowell Dense Concrete Block 7N 440x100x215mm