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Properties of the insulating concrete Isotherma®

Composition

The insulating concrete ISOTHERMA® consists of  cellulose insulating material, expanded polystyrene spheres with a diameter of 2 to 4 mm and a binding agent composed of cement and different additives to obtain a homogeneous composition.

Due to these additives the insulating concrete can be easily pumped. Water pipes, power lines and heating pipes can easily be embedded to avoid thermal bridges.

Insulation values

Parameters for the calculation of the thermal insulation with the insulating concrete ISOTHERMA®
Thermal conductivity λ: 0,061 W/(m K)

Thermal transition coefficient Heat transfer resistance R Heat transition coefficient U
Thickness of Isotherma®
cm m W/(m² · K) m² K/W W/(m² · K)
0,5 0,005 12,2 0,082 4,718
1 0,01 6,1 0,164 3,402
1,5 0,015 4,067 0,246 2,66
2 0,02 3,05 0,328 2,184
2,5 0,025 2,44 0,41 1,852
3 0,03 2,033 0,492 1,608
3,5 0,035 1,743 0,574 1,421
4 0,04 1,525 0,656 1,273
4,5 0,045 1,356 0,738 1,152
5 0,05 1,22 0,82 1,053
5,5 0,055 1,109 0,902 0,969
6 0,06 1,017 0,984 0,898
6,5 0,065 0,938 1,066 0,836
7 0,07 0,871 1,148 0,783
7,5 0,075 0,813 1,23 0,736
8 0,08 0,763 1,311 0,694
8,5 0,085 0,718 1,393 0,656
9 0,09 0,678 1,475 0,623
9,5 0,095 0,642 1,557 0,593
10 0,1 0,61 1,639 0,565

U calculated with

  • RSI = 0.13 m2K/W for the inner heat transfer resistance indoor air Isotherma®
  • RSE = 0.0 m2K/W for the outer heat transfer resistance into the soil

ISOTHERMA®  was tested by: EIFELINSTITUT: laboratories for mechanical, physical, chemical and photo-technical material testing, WILHELM LAPPE: VDI-GDCh-FGSV Dipl. Ing. (HTL + TH) and Dipl. Chem. (HTL + TH), accredited by the supervising authority and the government as a center for building material testing, inspection and certification, expert service – 50 years of material testing.

Package

  • Bags of 50 liters with a weight of 18,5 kg
  • Euro pallet with 30 bags of 50 liters
  • Big bags 1 m³ and 2 m³

Guarantee

10-year warranty on our products under compliance with certain conditions (available on request). ISOTHERMA® is ready to use – you don’t have to add further components!

Properties

  • Compressive strength: 0,59 N/mm²
    Standard ASTMC: 163
  • Thermal performance:
    Coefficient of thermal conductibility = 0,061
  • Improvement of the acoustics of 10 db