Substitute for foamed glass

[cve60069]

Hello.

I am in the need of a strong structural material such as foamglas but 15mm thick to be thermal-break. Foamglas is only available 40mm thick. It is the thermal-insulation value and strong in compression qualities of the material I am requiring. The material is to be sandwiched and bonded between two skins of 40mm thick concrete with a total load of about 10kN/m2 including the concrete. No deflection. PUR insulation (kingspan, Celotex) is not suitable due to the fibres. Material may get wet.

Any suggestions, please?

 

[hokie66]

Why wouldn't you use polystyrene? 10 kPa is not much, and polystyrene is used under floor slabs on ground.

 

[Grahammachin]

I am assuming by the metric units that you are in the UK.

In which case I would suggest a product called Filcor, from Cordek or something similar. They do a range of products with a 1% compression at loads from 10kN/m2 and 190kN/m2

This is expanded polystyrene as Hokie66 suggests