What is the approval process for BIMMs

Jasto introduces two new stones with a coefficient of thermal conductivity of 0.065

(22.1.2013; BAU 2013 report) In 2013, too, Jasto is placing a major focus on stones for energy-efficient construction. The state of development is characterized by new, highly heat-insulating bricks that are currently in the approval process. The top products underpin the development of the last few months: the coefficient of thermal conductivity has now been further reduced from 0.07 to 0.065 W / mk. This value can be achieved both with a stone with a wall thickness of 42.5 cm (format 14 DF) and with a stone with a wall thickness of 36.5 cm (format 12 DF):

Thermal conductivity
λ in W / mK
Wall thickness
in cm
Stone fortress
activity
Bulk density
in kg / dm³
U-value
in W / m²K
integrated
insulation
0,065 42,5 1,6 0,35 0,15 organic
0,07 42,5 1,6 0,35 0,16 mineral
0,08 42,5 2 0,40 0,18 mineral
0,09 42,5 2 0,50 0,20 mineral
0,09 42,5 4 0,55 0,20 organic
0,10 42,5 4 0,55 0,22 mineral
0,065 36,5 1,6 0,35 0,17 organic
0,07 36,5 1,6 0,35 0,18 mineral
0,07 36,5 2 0,40 0,18 organic
0,09 36,5 4 0,55 0,23 organic

The new stones made of highly heat-insulating lightweight concrete are based on a special arrangement of air slots and insulation material chambers. They provide proof that monolithic and solid construction can also be carried out in the low-energy and passive house sector. The high proportion of pumice as a raw material in lightweight concrete also ensures very low primary energy consumption in production. It turns the stones into a sustainable building material that saves CO₂ emissions.

Further information on filled, highly insulating lightweight concrete blocks can be obtained via Email to Jasto be requested.

see also for additional information: