UHPC concrete for new precast bridge construction or bridge repair

For more than 25 years, UHPC Ultra High Performance concrete has been used for the construction and repair of concrete bridges worldwide. The mechanical and durability
properties are absolutely ideal for modern bridge construction.

WPE DK UHPC concrete is used in the production of precast concrete parts and for on-site assembly. With UHPC concrete, very slim and high load-bearing elements can be manufactured quickly, cost effectively and very precisely. All of our UHPC material qualities can be processed with most types of concrete mixer.

Our UHPC bridge material qualities are usually mixed with a water / cement ratio of less than 0.25 and a proportion of steel fibers. Compressive strengths of 150 MPa / 21800 psi to over 230 MPa / 33400 psi are achieved in our standard quality.

Our UHPC material properties meet all required technical data, including in the USA from the responsible DOTs. All of our UHPC material qualities are subject to a permanent quality check of the raw materials used, finished products and processing on site on the construction site.

We use our UHPC castable materials for joint fill solutions or connection of precast bridge elements. With UHPC castable you can minimizse the connection joints.

We manufacture UHPC mortar, UHPC Castable, UHPC Shotcrete and UHPC Rapid material qualities for bridge construction. At the customer's request, we also develop and manufacture special qualities.

UHPC mortar, UHPC Shotcrete and UHPC Rapid are mainly used for repairs. No extensive preparatory work is necessary for repairs with our UHPC materials. After less than 48 hours, our standard materials reach more than 70% of their maximum strength. UHPC is waterproof from a layer thickness of 5 mm.

We use our UHPC TopLayer or UHPC Phalt material qualities for bridge decks. In Europe we use UHPC TopLayer for new wood bridge construction. All UHPC can be mixed on site and processed quickly and inexpensively with standard processing machines.

The mixing is very simple. You mix 1 part UHPC Binder with 1 part aggregates and clear water, that is all. Everybody can mix it. No additional addives are necessary.

 

 

WPE DK International

Phone: 0049 1514 6318334
E-mail: info@wpe-dk.dk
Homepage: www.wpe-dk.com

UHPC Concrete tower construction up to 300 meter

Industrial chimneys and lighthouses have always

been bricked up, and so well that they are still

fully functional to this day and would be a while

if they weren't torn down. Today you would not

be able to pay for such a construction method

and you would no longer have the time to assemble

it.

Large or tall towers such as TV towers, radio masts,

offshore / onshore wind turbines and similar

structures are made of steel or reinforcing concrete.

High-quality UHPC materials can take on

compressive strengths of more than 240 MPa /

34.800 psi and thus corresponding bending tensile

strengths without reinforcement.

With appropriate reinforcement, these values ​​can

be multiplied several times. Today, slim, high-

strength tower constructions are possible that

cannot be achieved with standard concrete. The

main tube construction of radio masts can also

be made entirely of UHPC today.

Towers for onshore and offshore wind turbines

are already made from UHPC prefabricated parts

or cast on site.

UHPC has many technical advantages over steel

or reinforced concrete structures. UHPC towers

are absolutely corrosion-resistant, quickly

installed and maintenance-free.

 

 

UHPC Ultra High Performance Concrete in local Asian architecture

UHPC Ultra High Performance Concrete is barely considered in modern Asian architecture, although this material is over 25 years old. 

HPC and UHPC concrete is not just a concrete, it is something special. In the beginning, 25 years ago, we broke one strength record after another. We have done extreme constructions and linings and cold and heat.
For the last 15 years, we have been focusing on sustainability in the Asian market with our HPC and UHPC materials, using local materials. We can perfectly combine our materials with local construction materials such as bamboo. The result is a unique, sustainable, cost effective material or construction. With our HPC and UHPC binder systems, we can incorporate almost any local material. We can work with local architects and contractors to create buildings and structures that can withstand floods, fires, storms, earthquakes and insect attacks. We also want to learn with local

builders how we can work together to create permanent floating platforms for living on the water or on the coast.

 

Yet this extraordinary material offers a large number of answers to the requirements of modern Asian architecture.

Corrosion
HPC/UHPC materials are very good corrosion resistant. Old concrete, wood or steel structures can be easily and inexpensively repaired and made usable for many decades.

Waterproof
HPC/UHPC materials are waterproof from a layer thickness of 10 mm. Houses can be made resistant to

flooding so that they can be quickly cleaned and used again after a flood.

Seawater
UHPC materials are absolutely seawater resistant. HPC/UHPC can be processed underwater. This means that jetties can be repaired easily and quickly. they can then be used again for the next 50 years.

Rotting
UHPC do not rot. Wooden structures that are already starting to rot or are damaged can be quickly and permanently repaired with HPC/UHPC.

Material Strength

HPC/UHPC materials reach strengths from 20 MPa to 240 MPa

Steel structures
HPC/UHPC materials can permanently replace steel structures and require no maintenance

Earthquake
HPC/UHPC materials offer solutions to increase the seismic safety of existing buildings

Temperatures
HPC/UHPC materials are extremely temperature resistant from -90° to +1200°C. An ideal material for facades

Design
With HPC/UHPC materials it is possible to achieve extremely fine surface structures

Processing
HPC/UHPC can usually be processed like standard concrete. We produce HPC and UHPC castable,

mortar and shotcrete versions.
HPC and UHPC materials help to drastically reduce the concrete requirement / weight.
HPC and UHPC sheathing of steel or wooden structures standing on or in the water, will permanently protect the construction against rotting.
Of course, UHPC can also be used to repair buildings and floors easily, quickly and effectively.

There are many other arguments for the use of UHPC in Asian architecture.
We are happy to be of service to every designer, architectand contractor with our decades of experience.

At the moment we are producing our HPC and UHPC materials in Europe. However, we plan to build one or two production locations in Asia in the near future.

 

WPE DK International

Phone: 0049 176 601 73146
E-mail: info@wpe-dk.dk
Homepage: www.wpe-dk.com

 

UHPC Doors and gate constructions

Doors and gates to buildings have been constructed
of wood all over the world for hundreds of years. A
material that was available everywhere. There were
simple doors and gates and there were incredibly
beautiful, filigree doors and gates. There were also
doors and gates that were used exclusively for
military security and where design was absolutely
irrelevant.

Today, doors and gates in architecture are made of
light metal or plastic. In industry and in security
areas, for example, doors and gates must be fireproof,
watertight, burglar-proof, explosion-proof, etc.

The list of requirements is long

Up to now, concrete as a material for doors and gates
was only possible for safe constructions, as concrete
constructions are very heavy.
With UHPC Ultra High Performance Concrete, the
possible uses changed completely.

UHPC material
 - achieves very high strengths
 - can be produced in relatively thin layers

 - is absolutely waterproof
 - is salt water resistant
 - is highly wear-resistant
 - can reach temperatures up to max. Withstand 1200°C
 - can withstand high blast pressures
 - is used in ballistics
 - can be shaped very precisely
 - can be easily combined with wood, metal, minerals and glass
 - is nanotechnology, the finest surface structures can be produced

 - enables the production of very small, fine concrete elements
 - enables large door geometries weighing several tons can be colored easily
 - is processed in a similar way to standard concrete

 

 

WPE DK International

Phone: 0049 176 601 73146
E-mail: info@wpe-dk.dk
Homepage: www.wpe-dk.com

Machining UHPC concrete like metals

UHPC is a very unusual material that is still

far too little considered by architects and
designers. It is still viewed and processed
like a normal concrete.
Our view is more that we design and
manufacture UHPC to treat it more and more
like metal. UHPC in the right quality can
already be machined with tools from the metal
industry. Very high accuracies can be achieved
here whether in surface processing or in shape
processing.
The surface treatment can either be carried out
using special UHPC casting molds or by
identical processing steps as for metals, or
combined casting and subsequent processing.
There are no limits to the design options here.
In terms of shape, metalworking tools or machines
can be used with the same objective as metals.

Architects, designers and artists have not even
used a fraction of the technical possibilities.

One example is the use of computer-controlled
water jet cutting machines. For a customer, we
should test the possibilities of making special
bevel cuts as plate slots that cannot be cast in
this way. Additional cutting tests were carried
out to check which geometries can be cut and
what minimum wall thicknesses can be achieved
between the individual cuts. With the right
combination of UHPC binder, unit quality and
setting of the cutting machine, amazing results
can be achieved. The tested UHPC plates had a
plate thickness of 15 - 25 mm, no metallic
reinforcement and were dried for 48 hours in
normal ambient temperature before they were
processed.

With the UHPC binder-aggregate combination
used in the test, cutting distances of 5 mm could
be achieved.
As soon as possible, further cutting tests will be
carried out with UHPC desert sand binders.
Water jet cutting enables complete "images" to be cut in UHPC panels or special construction elements.
With this type of material / machine technology, it is possible to produce a large number of facade panels with an elaborate cut design at low cost in a short time.

WPE DK International

Phone: 0049 176 601 73146
E-mail: ber@wpe-dk.dk
Homepage: www.wpe-dk.com

UHPC Bridge Deck Joint Filler BF

In many prefabricated concrete bridge constructions, the joints between the individual elements are filled
on site with a UHPC joint filler after the concrete elements have been installed. This creates a continuous concrete bridge deck.
Our BF joint filler systems have compressive strengths of 150 MPa - 220 MPa and flexural strengths of 14 MPa - 21 MPa.
The water to cementitious ratio is less than 0,22
Our BF System joint fillers can be processed on site with pan pot mixer, shaft mixer and horizontal mixer.
For very large sites with very large UHPC binder requirements we have mobile production plants for the binder and mobile mixing plants for the UHPC concrete. All plants are housed in containers and are therefore independent of weather conditions. With our mobile production plant for our UHPC joint filler systems, we are able to use local raw materials if suitable.

 

The joint filler BF systems can be used for all connections between adjacent box beams, next D beams, precast deck panels and beam haunch connections.
There is a wide range of concrete element connections. Each state in the USA and therefore DOT has its own specifications for these.

WPE DK International

Phone: 0049 176 601 73146
E-mail: info@wpe-dk.dk
Homepage: www.wpe-dk.com

A difference in the definition of UHPC is always a difference in quality

The American Federal Highway Administration (FHWA) defines UHPC as follows:

UHPC is a fiber reinforced, portland cement based product. Through the appropriate combination of advantagements in superplasticizers, dry constituent gradiation, fibre reinforcments and supplemental cementitious materials.

UHPC is a cementitious composite material composed of an optimized gradation of granular constituents, a water-to-cementitious materials 
ratio less than 0,20 and a high percentage of discontinuous internal fiber reinforcement.

The mechanical properties of UHPC include  compressive strength greater than 150 MPa and a flexural strength geater than 15 MPa.

We define our UHPC grades as Ultra High Performance Concrete but without steel fiber reinforcement.
For all our UHPC grades, whether cast, mortar or spray, we achieve the technical values without the addition of any fibers.

UHPC is a cementitious composite material composed of an optimized gradation of granular constituents, a water-to-cementitious materials ratio less than 0,20 and no procentage of internal fiber reinforcement.

 

The mechanical properties (without fiber reinforcement) of UHPC include minimum compressive strength of 150 MPa (up to 260 MPa and more) and a minimum tensile strength 15 MPa (up to 30 MPa and more). We achieve 70% of the maximum nominal strengths less than48 hours and not 28 days.

Of course, fibers of all possible qualities and geometries, steel reinforcements and a wide
variety of aggregates can be added to the UHPC concrete. On our website you will find a long list of
these materials that we have been using for over 20 years. But if we want to compare material with
material fairly, we have to compare the base with each other and that means the pure UHPC binder without fibers and reinforcements.

A difference in the definition of UHPC is always a difference in quality.

                     Our HPC and UHPC compressive strength standard

Garden-, park and costal design with UHPC

Garden and park design
From small private gardens, lakes, rivers and parks of all types and sizes, UHPC is an ideal material for nature-identical structures.

With UHPC, objects such as buildings, rocks, waterfalls, natural stones, etc. can be perfectly integrated into nature.
The benefits of UHPC for the architect and designer are

• UHPC can be easily processed on site or as a prefabricated element of any size and geometry
• UHPC achieves much higher strength values ​​than concrete
• UHPC is extremely corrosion resistant
• UHPC is water impermeable even in small material thicknesses
• UHPC can be processed as a mortar, casting compound or as a spray mass
• UHPC can also be processed under water
• UHPC is absolutely seawater resistant
• With UHPC, the finest surface textures can be achieved
• UHPC is an ideal combination material. It can be combined with nearly all minerals, metals, glasses and plastics without problems
• It can be achieved in constructions that are placed in nature or in water lifetimes up to 100 years.

If you have any questions about this topic, feel free to contact our partner in Houston Texas Asante.
He has many years of experience with garden, park and coastal design in conjunction with UHPC

Contact
ASANTE, Houston Texas
Douglas Miller  phone 774 208 1766

Shore and coastal design
UHPC of the right quality withstands extreme loads from nature. In addition to the advantages

already described above, the following advantages can be added for the shore and coastal design

• UHPC is extremely resistant to wear and impact in the right composition
• UHPC does not lose its strength either at extremely low temperatures (-180°C / -292°F) or at extremely high temperatures (450°C / 842°F)

UHPC is much better for coastal protection and tsunami protection than standard concrete or steel.

Comparison of UHPC and concrete during processing to precast concrete elements

The first UHPC Ultra High Performance Binder
was developed more than 30 years ago. Since
then they have been continuously developed.
The UHPC binders have been improved or new
ones have been developed and produced in
accordance with the requirements due to their
experience in a wide variety of application areas
and industries worldwide. From the beginning,
our UHPC binders were produced as mortar,
castable and shotcrete.

UHPC castables are inexplicably used to a much
lesser extent in the production of precast concrete
than standard concrete. These UHPC materials
could offer enormous advantages for manufacturing
as well as in the use of precast concrete parts.
Here are some applications and their advantages
compared to standard concrete:

 - Light weight of the UHPC elements. Due to the
    extremely high strength, smaller component cross
    sections can be selected, which leads to lower
    individual weights.
 - More elements can be loaded per truck, which leads

   to fewer loads.
 - Due to the lower individual weights, lower crane
    capacities are required.
 - The raw material requirement is drastically reduced
    due to the smaller component cross-section.
 - UHPC materials develop high strength values ​​in a
    short time. Our UHPC materials reach 70% of their
    nominal strength after 48 hours.
 - Shorter production times per element, higher cycle
    times - higher quantities per unit of time compared
    to standard concrete - lower unit costs.
 - Shorter delivery times.

UHPC binders are based on nanotechnology and 
are extremely fine.
Advantage:
It is possible to produce much more precise shapes.
Joints, edges do not require reworking. The more
precise the mold, the more precise the UHPC
element.
UHPC concretes do not form pores and are usually
self-compacting. This means that surface structures
can be achieved that cannot be achieved with standard concrete.

UHPC concrete is extremely resistant to most 
environmental influences
Advantage:
UHPC concretes are extremely resistant to
corrosion, de-icing salt and frost, which leads to a
much longer life expectancy than standard concrete
UHPC many times exceeds concrete, marble,
limestone, sandstone and many other natural stones.


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

Precast elements and Tilt-up manufacturing with HPC and UHPC concrete

HPC and UHPC concrete are very suitable for processing on the construction site in the Tilt-up system or in precast concrete plant. Residential housing and industrial buildings of all sizes can be manufactured using these two systems.

HPC and UHPC concrete has a long list of advantages over standard concrete

- High tensile strength- Extremely high compressive strength
- Very fast strength development
- UHPC elements have a very high production accuracy. If the mold is   exact, the element is exact.
- High chemical resistant
- Absolute corrosion resistant
- Even small layers already lead to an absolute waterproofness.

- Customer requirements such as burglary resistant, fire resistant, storm resistant and acoustic properties as well as noise reduction can be easily met.
- Combinations with a high-performance insulation layer reduce energy costs by several times compared to wooden houses or brick houses.
- The required wall thicknesses are only a fraction of comparable housing designs.

Tilt-up elements
Tilt-up elements are manufactured using locally produced molds and concrete in a wide variety
of HPC and UHPC concretes produced by us achieve 70% of their nominal strength in just 48 hours, the average nominal strength of our UHPC concretes is 140 MPa / 20000 psi.

Due to the compessive and flexuaral strength, it is possible to work with considerably smaller wall thicknesses, which leads to substantial material reductions and costs.
The extremely fast development of strength leads to faster assembly, the overall completion time is significantly reduced, which can also lead to cost reduction.

Precast elements
Prefabricated systems have been used in Europe for more than 50 years. There is a huge amount of standard residential house design variations from small houses, garages, workshops to entire building

complexes. Architects design exceptional prefabricated houses according to customer requirements. The elements are already manufactured and prepared weeks in advance in a precast plant, so that only a few days are needed on the construction site for a complete completion.
The advantage is the very small footprint on site.
The elements come with trucks in the correct assembly order on the construction site. A crane positions the elements and very few fitters are needed for assembly. It can be installed all year round, regardless of the weather contitions.

UHPC - Facades and Balconies

Many facades of public buildings such as
train stations, airports, banks, administrations,
etc. have almost incredible design in addition
to the necessary thermal function.
Then there are the steel and glass facades,
admittedly they fulfill their function perfectly,
but that's pretty much all that can be said
about them. And there are the old facades
that have aged with pride, which are made of
stones with some figures that bear history.

Each of these facades can tell a story, which
one can certainly not say of glass and steel
facades.
UHPC concrete can perfectly combine the
modern with the proud old design. UHPC
concrete is a modern material for the future
with incredible properties. It offers flexibility
in design, security in temperature and wear
resistance, durability in extreme strength and
very high resistance to almost all environmental
influences, detail in design, easy to use
compared to other materials, it can be processed
on site worldwide.

Facades of houses and balconies were almost
always characterized by their marked simplicity.
For some years now, more and more architects
and designers have been dealing with this area
and also because of the climate discussion.
Today you can see more and more interesting
solutions for facades and balconies of residential
buildings. Simple smaller and larger rectangular
balconies are disappearing more and more and
are being replaced by new balcony geometries.
The old idea of ​​greening facades is increasing
in urban centers. Today it is called the vertical
garden. In the course of this development, the
balconies also became gardens and, for some
architects, veritable forests.

Here too, UHPC concrete offer architects and
designers a variety of new technical and design
options. Due to the extremely high strength
values, balcony slabs can be made much thinner
than with a standard concrete or the balcony area
can be increased significantly with the same slab
thickness as with a standard concrete. As with
the facades, in addition to the strength, the

extremely high resistance to environmental
influences and the resistance to fire is a factor
of great interest.

UHPC concrete for precast production

UHPC concrete has many commercial as well as technical

advantages over standard concrete for the production of 

precast concrete elements.

More and more architects are specifying UHPC concrete 

as a standard material for their façade design. There are 

no design limits for façade constructions.
In recent years, we have developed UHPC binder systems 

that can be processed into lightweight concretes or 

insulating concretes, especially for façade construction.

- We produce UHPC materials with a strength of

   40 MPa to 240 MPa.
- Our UHPC materials reach 70% of their maximum

   nominal strength within 48 hours. Faster strength

   developments are possible on customer request.
- We only need sand, not gravel, to process UHPC

   concrete.
- With our UHPC Desert Sand Binder, desert sand

   can also be processed without any problems.
- All of our UHPC materials are self-compacting

   and need no or very little vibration.
- Our UHPC materials have extremely little to no pore

   development.
- The nanotechnology development of our UHPC

   binders enables extremely fine surface structures to

   be created.
- With the use of fibre reinforcement it is possible

   to create very thin structures of high strength.

- For prestressed elements, the pre-tensioning force
   of UHPC material can be chosen to be much higher
   due to their very high strength than standard concrete.

- Very good flow properties for casting complicated

   geometry and filigree surface structures.

Processing of UHPC binders
Only a shaft or pan pot mixer is required for

processing.
The UHPC binder is mixed with sand or desert

sand and a very small amount of water.
It is not necessary to add additives.

Applications

• Double walls 
• Pre stressed elements 
• Tubes
• Bridgedeck elements
• Stairs
• Piles
• Supports
• Tunnel segments
  
• Facade elements
  
• Balconies
• Sea defence units
  
• Floor tiles in large geometries                
  
• Security
  
• Vertical garden (facade) elements
• Sewage pipes and box culverts
• Floating elements