Lightherm Screed
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Lightherm is a lightweight aggregate specially treated with our patented VODAPRUF additives. Lightherm when mixed with cement becomes a lightweight screed (Lightherm Screed)- density of only 250kg/m³. It achieved thermal conductivity-as low as 0.067 W/mk. Lightherm Screed has acquired COC ( Certifacate of Conformity ) issued by TUV SUD PSB Singapore. Lightherm Screed is suitable for indoor and outdoor applications.
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Uses
- Lighterm Screed is used as a lightweight
topping screed to adjust floor level. - Lighterm Screed is used as a lightweight
screed on Steel Decking - Lightherm Screed also provides good
thermal-sound insulation properties.
| Density Kg/m³ | 250 |
| Mass after 28 days Kg/m³ | ~ 265 |
| Thermal conductivity - λ W/mk | 0.067 |
| Compressive resistance N/m2 (UNI EN 1015-11:2007)-N/mm² | 0.83 |
| Flexural strength N/m² (UNI EN 1015 -11:2007)-N/mm² | 0.46 |
| Cohesion kPa | 82.62 |
| Hot-sealed membrane rupture N/50mm | 57.00 |
| Cold-sealed membrane rupture N/50mm | 35.00 |
| Elasticity module N/mm² | 235.80 |
| Permeability to water vapour - µ | 11.50 |
| Shrinkage (NBN) - mm/m | 0.427 |
| Specific heat - kj/kgK | 1.40 |
| Impact sound reduction at 500Hz - ΔL | 14dB (thickness 5cm) |
| Impact sound pressure level | 61dB |
| Fire reactivity class | A2 (UNI EN 13501 - 1) |
| Smoke production class | S1 (UNI EN 13501 - 1) |
| Observations of drops or inflamed particles | D0 (UNI EN 13501 - 1) |
** No sand required
To obtain 1m³ of Lightherm Screed 250kg/m³
** Cement Portland 32.5 Cem l or Cem ll limestone. Any brand of Ordinary Portland Cement is possible.
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