Grouting materials
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Grouting materials are used to fill drill holes or excavation pits. Depending on the requirement of the substratum, the company STÜWA offers different grouting materials.
| Overview over the features | STÜWATHERM Z | STÜWAPRESS | STÜWAPRESS F-10 | STÜWAISO | STÜWADÄM |
| Thermal conductivity | very high | low | high | very low | low |
| Compression strength | medium | very low | high | low | low |
| Sealing properties | high | high | high | medium | medium |
| Freezing strength | medium | low | high | high | low |
| Heat resistance | medium | low | high | high | low |
STÜWATHERM®
is characterised by a very high thermal conductivity (λ =2,0 W / m K) and is used in the heat generation from geothermal heat.
STÜWAPRESS®
is a grouting material for standard fillings (e.g. to seal aquifers), as it achieves a high sealing rate.
STÜWAPRESS F-10
has the special feature of good frost-thaw change strengths, so that it can be used as very frost-proof geothermal heat probe grouting material (up to -10°C).
STÜWAISO
suitable for insulations in the upper aquifer area on the basis of its low thermal conductivity.
STÜWADÄM
serves as suspension for the stable filling of drill holes.