Again and again we hear of skyscrapers or facadefires. In the rarest cases the fire is quickly and easily
extinguished.
The longer the fire lasts and the fire temperatures
reach a maximum (about 1000°C/1832°F), the
more problematic it becomes for the steel and
reinforced concrete structures, especially in older
houses that do not have the latest fire protection
technology.
Concrete can easily withstand a temperature of
300°C/572°F for a longer time. At a temperature
the concrete decreases. At a temperature above
600°C/1112°F, volume increases occur in reinforced
concrete, which can lead to external flaking or
cracks within the concrete structure.
The time factor is a crucial factor for the stability
of the construction.
Today we try to increase the period of the temperature
penetration of the reinforced concrete construction
by higher concrete coverings.
We developed and produce UHPC HT which has
a temperature resistance over 1000°C/1832°F. So
far, this material has been used especially in the
steel industry, but it is certainly an interesting
material for the construction industry in certain areas.
UHPC HT materials remain stronger in all
temperature ranges than those of standard concretes.
That means no matter what temperature and
burn time, UHPC HT compressive strength
far exceeds that of standard concretes.
This quality of UHPC HT could mean for the
fire fighting, that the danger of a building collapse
is reduced by a multiple.
UHPC HT concretes combine them very well
with highly efficient insolation materials. From
the experience of the steel industry we know
that we can achieve extreme temperature
reductions even in very thin wall thicknesses.
WPE DK International
Phone: 0049 176 601 73146
E-mail: info@wpe-dk.dk
Homepage: www.wpe-dk.com
