A high density 65mm high concrete block which, when laid on a 190mm bed, achieves the requirements for a solid sound separating wall as detailed in the Building Regulations.
Having high density, with associated strengths, the durability requirements for use above and below ground are easily achieved. Party Wall blocks can be used in normal and sulphate soil conditions equivalent to soil classification DS-3.
Fire
Concrete is an excellent fire resistant material. Party Wall blocks are manufactured using Class 2 aggregate. Where fire resistance is important it is essential that the fire resistance associated with class of aggregate is checked.
Material properties
Mean compressive strength: 24 N/mm²
Thermal conductivity (W/m.K): internal 1.46, external 1.56
Dry density: 2100 kg/m³
Working dimensions: 440 x 65mm
Block widths and weights
Block width (mm) |
Form |
Block weight* (kg) |
Wall weight** (kg/m²) |
Sound reduction dB |
190 |
Solid |
11.8 |
402 |
48 |
*Block weights are calculated using specified dry density, with a moisture content of 3% by weight added to provide the equilibrium value.
**Weight of erected wall (including mortar). Add 11 kg/m² per side for a 2-coat lightweight plaster finish (24 kg/m² for dense plaster).