Application report

Load transferring insulation

Basement ceiling suitable for road traffic

Partner company / client

Winzer Krems (Planning Office Krammer)

Quantity:

 

app. 550 m³

Product specification

TECHNOpor glass foam granulate Perimeter 50

Description

Winzer Krems built an underground work area with app. 2,500 m2 floor space.
It was constructed in such a way that its top edge is level with the terrain and has a storage capacity for 7 M litres of wine.

A thermal insulation is needed which not only protects the climate within the basement, but also is pressure resistant to facilitate the asphalting of the insulation and the subsequent lorry and forklift traffic.

Execution

Sealing was applied to the reinforced concrete ceiling, 200 g geo-textile was installed and a 23 cm high fill of glass foam granulate was applied evenly.

The delivery was carried out with 90 m3 moving floor lorries.

The material was distributed using a wheel-loader and ICB.
An additional layer of 150 g geo-textile was put on top of this layer to separate the glass foam granulate layer from the 608 cm thick mechanically stabilized base course (as a grader layer).

Now the grader layer was compacted utilizing a 3.5 t smooth roller, at the same time compacting the glass foam granulate to a thickness of about 20 cm.

The final layer was a 2-layer asphalt coating consisting of a 15 cm thick base course and a 4 cm thick wearing surface.

Conclusion

Glass foam granulate was the only reasonable solution, no other material offers this specific combination of properties required here.

Due to the asphalting and the high intermittent loads of a forklift, the foundation has to meet extremely high requirements.

Glass foam granulate can meet these demands.

It is extremely pressure resistant, replaces the drainage layer and at the same time offers thermal insulation.
This facilitates a very low structural thickness.