UHPC ThermCombi lining system consists of a highly effective insulating layer and UHPC
wear protection layer
For a cement plant in Europe, we should
create a technically optimal possibility thata complicated hot gas line is provided with
wear protection against a very abrasive
material and at the same time the gas
temperature must not drop below 700°C /1292°F. A similar project we had years ago
for a steel plant in Asia.
In order to meet these customer requirements,
we have chosen a UHPC ThermCombi lining
system.
We reduced the temperature for the steel
structure to 80°C / 176°F. That was no problem
with the insulation material we chose. A high
temperature resistant UHPC wear protectionlayer was installed on the insulation layer.
The advantage over a traditional refractory
lining is:
- The combination lining was about 60% lighter
in weight than a refractory lining.
- The total layer thickness of the combination
lining was 400% less than that of a standard
refractory solution.
- This meant that the steel pipe diameter was
much smaller than with a refractory lining
and the supports had to carry much less weight.
- UHPC HT wear protection can withstand
temperatures of 1200°C / 2192°F, which was
an additional security in this project.
- UHPC HT wear protection is several times morewear-resistant than refractory concrete, which
has resulted in a significantly longer service life
and much less maintenance.
Today, the new UHPC ThermCombi systems are not only used in the steel, power plant and cement industries. The construction industry has also recognised the enormous advantages for building structures and façade constructions. It is not only the insulating properties that save energy, the significantly lower material consumption and the very light precast weight - it is especially the fire and heat resistance that makes UHPC ThermCombi building constructions very safe constructions.
