SMARTBLOCK® 600: strong insulating block, λ 0.110
SMARTBLOCK® 600 is the middle density: an average compressive strength of 2 N/mm², five times that of the 300, with a conductivity that is still low (0.1104 W/mK). It suits infill walls and partitions that need to be sturdier without giving up insulation. At 50 cm the time lag exceeds 30 hours.
600kg/m³- Equivalent λ
- 0.1104 W/mK
- Compressive strength
- 2.00 N/mm²
- Wall U
- 1.339–0.211 W/m²K
- Calculated Rw
- 41–55 dB
- Reaction to fire
- A2-s1,d0 · EI 240
Thicknesses and wall data
Wall with 1.5 cm of traditional plaster on each side. Block height 20 cm.
| Code | Size L×W×H | Weight | Pcs/m² | U W/m²K | R m²K/W | Time lag | Rw dB | Fire | Sheet |
|---|---|---|---|---|---|---|---|---|---|
| B.06.600 | 1000 × 60 × 200 mm | 7.2 kg | 5 | 1.339 | 0.747 | 3.0 h | 41 | — | PDF EN |
| B.10.600 | 500 × 100 × 200 mm | 6 kg | 10 | 0.902 | 1.109 | 5.3 h | 41 | EI 90 | PDF EN |
| B.15.600 | 500 × 150 × 200 mm | 9 kg | 10 | 0.640 | 1.562 | 8.5 h | 43 | EI 120 | PDF EN |
| B.20.600 | 500 × 200 × 200 mm | 12 kg | 10 | 0.496 | 2.015 | 11.6 h | 46 | EI 180 | PDF IT |
| B.25.600 | 500 × 250 × 200 mm | 15 kg | 10 | 0.405 | 2.468 | 14.8 h | 48 | EI 240 | PDF EN |
| B.33.600 | 500 × 330 × 200 mm | 19.8 kg | 10 | 0.313 | 3.193 | 19.9 h | 51 | EI 240 | PDF EN |
| B.40.600 | 500 × 400 × 200 mm | 24 kg | 10 | 0.261 | 3.827 | 24.3 h | 53 | EI 240 | PDF EN |
| B.50.600 | 250 × 500 × 200 mm | 15 kg | 20 | 0.211 | 4.733 | 30.6 h | 55 | EI 240 | PDF EN |
U, R, time lag and Rw: ESB catalogue 11/2022. Fire resistance classes of the range for walls up to 4 m high. Rw calculated, not measured. ESB data sheets from 2014. Where no English version exists, the Italian sheet is linked.
Uses by thickness
- 6 cmExternal cladding, lining walls, external cavity walls.
- 10 · 15 cmThe same uses as the 6 cm block, plus internal partitions.
- 20 · 25 cmSingle-layer external infill walls, cavity walls and internal partition walls.
- 33 · 40 · 50 cmSingle-layer external infill walls and internal partition walls.
Specification text
Choose the item and copy the text into your bill of quantities.
Masonry built with the SMARTBLOCK® building system by ESB S.r.l., consisting of solid blocks for walls to be plastered, suitable for internal and external walls, CE-marked to EN 771-3, category II, made of cement-based concrete with a super-lightweight insulating aggregate of virgin expanded polystyrene beads of controlled density and graded size (Ø 3–6 mm), treated during production for full workability with the hydraulic binder. Item B.33.600: nominal dimensions L 500 × W 330 × H 200 mm, tolerance D1, density 600 kg/m³ ±10%, equivalent thermal conductivity 0.1104 W/mK, reaction to fire class A2-s1,d0 (EN 13501-1). The wall, plastered with 1.5 cm on both sides, will have a thermal transmittance U of 0.313 W/m²K and a calculated sound reduction index Rw of 51 dB. Laid with Malta Block 600 thermal mortar (EN 998-2, M2.5) with staggered joints. Including the forming of jambs and lintels, any special pieces, anchoring to the structure and reinforcement as required by the designer.
The other densities
- 300The most insulating density, for single-layer infill walls.
- 450High insulation, with more mass and a longer time lag.
- 750The first sound-insulating density: partitions and walls between units.
- 900Load-bearing from 15 cm, with thermal and sound insulation.
- 1200The density with the most mass: load-bearing and sound-insulating.
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