For large areas that are to be lined in a short time, UHPC Shotcrete is here a very good solution.
UHPC Ultra High Performance Concrete qualities
easily achieve minimum 120 MPa/1750 psi
compressive strength.
UHPC Shotcrete material must be mixed before
actually spraying. It is importance for the quality of
UHPC Shotcrete that the amount of water is kept
very precisely. Too much water reduces the material
quality to a decisive extent. UHPC Shotcrete is using
a water/cement ratio of 0,2.
Our UHPC Shotcrete binders have a continuous
temperature resistance up to 450°C/850°F. For
temperatures over 450°C/850°F up to
max. 1200°C/2200°F, we produce a UHPC HT High
Temperature binder. The processing of the UHPC HT
version is carried out in the same way as with
the normal temperature versions.Characteristics of UHPC Shotcrete
- No dust development, better working conditions- Due to the very high strength values, material
layer thicknesses can be reduced
- As with all other UHPC grades, a water
impermeability is achieved from a layer
thickness of 10 mm.
- UHPC spray is very resistant to any corrosion
attac
- More constant concrete quality due to pre-
defined water/cement content
- Higher compressive strength with no
fluctuations
- Fast uniform strength development
- Larger layer thickness due to more effective
reaction of the additives
- Low material rebound (below 2%)
- Extrem good adhesion
- Significantly larger spray performance
- Minimal air consumption
- Easy use of fibres
- High security
UHPC Shotcrete in the new construction of tunnels or canals
Especially for tunnel construction, the use of UHPC
Shotcrete is an advantage. There is no need for high air
pressures like a standard shotcrete, UHPC Shotcrete is
self-compacting, the adhesive properties are extremely
good, so there is extremely little rebound and material loss.
A possible desired reworking of the surface is easily
possible without any effort. The material dust development during injection is extremely low.
UHPC shotcrete as repair material for existing tunnels or canals
Whether large or small tunnels and channel geometries whether concrete, steel or corrugated metal constructions can be repaired quickly, permanently and cost-efficiently.
Due to the fast development of strength, even larger repairs can be carried out quickly and efficiently with little machine outlay.
Due to the extremely good adhesion and corrosion resistance,
elaborate preparation is not necessary. With a simple high
pressure cleaning device, the loose particles should be
removed and then UHPC Shotcrete material can be installed.
Machines and material for minor repairs can be transported
without a problem with a normal pick-up vehicle.
Phone: 0049 176 601 73146
E-mail: info@wpe-dk.dk
Homepage: www.wpe-dk.com
