Specifications sheet


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Annexes

Specifications sheet

Usage: ordinary exterior and / or interior masonry.
Thin-joint masonry using BENOR and CE certified blocks of expanded ground clay bars of grey cement and sand as per Belgian standard NBN B 21-001 and NBN EN 771-3 with an automatic dosage system incorporating thixotropic cement with weak chrome content (Cr VI< 2 ppm by weight of cement)

Texture: Grained

Apparent dry volume mass of the block
< 800 kg/m3 - :0,8

Average weight of the block (dry)

9 cm	14 cm	19 cm	29 cm
≤ 9 kg	≤ 11 kg	≤ 14 kg	≤ 24 kg

Characteristic compression strength to full laying surface
On hollow blocks : fbk = 3 Mpa f3 (except 9 cm non-supporting hollow blocks)

Dimensions

Fire resistance (NBN 713-020 and EN 1365-1 :1999)

Uncoated wall (with load, exept 9 cm) and open joints	9 cm	14 cm	19 cm
Uncoated wall (with load, exept 9 cm) and open joints	Rf : 105 minutes	Rf : 281 minutes	Rf : 333 minutes

Minimum wall thickness of the block (when used for supporting walls)
14, 19 and 29 cm blocks: = 50mm
9 cm blocks: ≥ 35mm

Permitted variations of individual dimensions

Length: 0/- 4 mm

Thickness: 1/- 1 mm

Height: 1 / - 1 mm

Noise attenuation Rw
(wall coated on both sides – thin 3 – 5 mm coating)

9 cm	14 cm	19 cm	29 cm
Rw=40 dB	Rw=44 dB	Rw=47 dB	Rw=51 dB

Thermal conductivity: in W/mK

14 cm	19 cm	29 cm
0,247	0,285	0,266

The blocks will be delivered on guaranteed pallets or lost pallets.

The nature and finishes of the blocks must be checked prior to implementation.

Specifications sheet

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