Specification Construction

Esk calcium silicate facing bricks are manufactured to BS187:1978.

Brick size - 215mm*102.5mm*65mm complimented by a range of special shapes to BS4729. Compressive strength normally Class 3 min 20.5 N/mm2 or to order Class 4 27.5 N/mm2 Class 5 min 34.5 N/mm2 (not available for rustic finished bricks). Bricks are shrink-wrapped and palletised in packs of 416.

Density (kg/m3) 1800 - 1950

Average water absorption 11%

Calcium silicate bricks have been shown by test and practical
experience to be suitable in all masonry configurations designed to meet the appropriate Building Regulations for sound insulation,
thermal insulation and fire resistance.

Durability - Calcium silicate bricks are resistant to sulphates in
soils and ground waters, chlorides, organic growths, atmospheric
pollution, coastal environments and frost action. They contain
negligible soluble salts and are therefore free from efflorescence.
They can be considered equivalent to FL quality clay bricks and are
also tolerant of chlorine atmospheres e.g. swimming pool buildings.