Architectural Masonry Data

Head Units

All decorative heads are manufactured to suit standard window openings.
Heads over 1547mm long are supplied in 2 pieces.
Bekstone Heads are decorative and not load-bearing; a structural lintel will be required.

215mm Splayed Head

215mm Standard Head

140mm Standard Head

150mm Cill

Keystones

Plain Quoins & Ashlar Blocks

Product Specification

Compressive Strength

Manufactured with a design compressive strength potential in excess of 35 MPa, (35 N/mm2).

Density

Typical Material Density = 2100Kg/m³

Thermal Conductivity 'K'

1.11W/mK

Thermal Resistivity 'R'

0.90 mK/W

Drying Shrinkage

Less than 0.5%

Mortar

Moderate:	Traditional Mortar Designation - iv BSEN998-2 Mortar Class (Compressive Strength Class) M2 Cement : Lime : Sand - 1 : 2 : 8/9
Severe:	Traditional Mortar Designation - iii BSEN998-2 Mortar Class (Compressive Strength Class) M4 Cement : Lime : Sand - 1 : 1 : 5/6

Capillary Absorption Test

0.50 mg/mm²

Modulus of Elasticity

20 - 25 kN/mm²

Dimensional Tolerances

0    –      600 mm ± 2 mm
601     –    1000 mm ± 3 mm
1001     –    2500 mm ± 4 mm
2501   –    4000 mm ± 5 mm

Lifting

Units over 600mm in length contain one or more steel bars. These bars are to assist operatives in the safe handling of the product on site and enabling compliance with Health & Safety Regulations relating to Manual Handling.

If you are not fully conversant with Manual Handling regulations then please visit the HSE website for detailed advise on lifting and for downloadable leaflets. www.hse.gov.uk/pubns/manlinde.htm