Rehabilitation and restoration of historic constructions with UHPC - part 1

Obtaining historical constructions is an 

important task. Much has already been 
lost through time and war, few of which 
are important to obtain.

we could not produce original materials 
from different time periods, so we can 
not fulfill this part of the restoration of 
historical constructions.

But with UHPC Ultra High Performance 
Concrete, we are able to offer solutions 
to a wide range of problems in conserving, 
reconstructing and restoring historical 
constructions.

UHPC has many advantages for use

• It can look exactly like limestone, 
  sandstone or granite
• it can be just as hard as limestone, 
  sandstone or granite
• It can be made as stones in any 
  measure like limestone, sandstone or 
  granite
• It can take over any stone surface of 
  limestone, sandstone or granite
• It can copy extremely accurate copies 
  including traces of use in all the finer 
  points of limestone, sandstone or granite
• It can be made as a casting material or 
  as a mortar and processed as traditional 
  casting and mortar mass for limestone, 
  sandstone or granite
• It can be machined with traditional tools 
  depending on the desired hardness.
• It can have almost the same consistency 
  as plaster and can be processed as well. 
  For extremely high whiteness we added 
  Aalborg White cement to our UHPC binder, 
  the cement grade with the highest degree 
  of whiteness.
• UHPC can add ductility to modern plastic 
  or ceramic fibers, so the great strength 
  of the material movements of old buildings 
  can certainly go along without the cracks 
  becoming visible.
• UHPC is impermeable to water from an 
  average layer thickness of 10 mm.
• UHPC can also be processed under water 
  as cast or mortar
• However, it is extremely resistant to all 
  types of environmental influences
• It is extremely resistant to frost and de-icing 
  salt
• Wood and steel can be cast in UHPC, 
  re-stabilized, restored to their original 
  carrying capacity, and given very high 
  corrosion resistance for many decades

UHPC is not magic material it is based on a 
particular nanotechnology and the right recipe 
for the right mix, for the right aggregates, for the 
right material quality.

With UHPC we can mix almost anything, old 
minerals, old textiles, old wood, old hemp, old 
pigments, old ground rock meal - just about 
everything.


www.hhbc-consulting.de
info@hhbc-consulting.de

Aggregate, fibers and reinforcements for UHPC

Over the course of more than 25 years, we have combined and applied a large number of materials with our UHPC materials. The material combination was used as wear protection material, offshore material, floor material, building material (for buildings, bridges, halls, etc.), safety technology, shipbuilding, tunnel construction, etc.

We would like to show a small selection of aggregates, fibers and reinforcements, which we have used. The aim of our development work in the combination of UHPC with other materials is the possibility to create country-specific materials with UHPC.

For each of these aggregates, fibers and reinforcements, there is a little story why we chose the combination, how we processed it and the results. if you are interested write us and we will send you this collection of little stories.

Further information on the aggregates, fibers and reinforcements


www.hhbc-consulting.de
info@hhbc-consulting.de

Brighter and cooler city centers and brighter in tunnels with UHPC

An article reported on the increasing warming of

inner cities and possible future measures to reduce
heating.

City roads

In a test, some asphalt road with a specially
developed soil color was colored white as much
as possible and the temperature differences in
this road were measured over a summer period.
It turned out that the light road surfaces reflect
significantly more solar radiation and were
therefore "cooler" than the traditional asphalt
pavements.

Of course the pavement painting, the traffic and
thus exposed to wear and it would be necessary
to renew the floor paint at regular intervals.

A simpler and much more durable method is
the combination of asphalt and UHPC Ultra
High Performance Concrete binder. This
combination is used in many areas such as
industrial flooring, aircraft hangars, runways
and roads. This combination has a variety of
technical and cost advantages over standard
asphalt. Its main advantages are its extreme

resilience at any temperature and the much

higher compressive strength than Asphalt

alone.

The lifetime of this material combination is
several times higher than standard asphalt.
Likewise, this coating can easily withstand
the future traffic through its significantly
higher pressure resistance

The UHPC binder content can also be produced
on a white cement base. As you can see in the
photo, the binder would stain over the entire
layer thickness without the need for special
"coloring" measures.

Tunnel

In addition to reflecting solar radiation, very

light asphalt / UHPC surface has many other

advantages over traditional asphalt surfaces.
When used in tunnels, the light-colored road

surface reduces the energy costs for lighting,

the floor areas are evenly light, which increases

safety, and the surface is considerably less

flammable than standard asphalt surface. The

surface has a much longer service life with high

traffic loads than standard asphalt, which

drastically reduces repair times and repair costs

and increases traffic safety.

It can become very bright on the streets

www.hhbc-consulting.de
info@hhbc-consulting.de