HPC and UHPC information documents and sample supplies

Again and again we are asked by architects if we can provide samples and catalogues of HPC and UHPC.

It seems that there is still a misconception that HPC and UHPC can be compared to DIN concrete. A lot of what is called new development in the standard concrete sector today, we have already developed 20 years ago with UHPC, only at that time the architects and the building industry were not interested.
The so-called R-concrete or recycled concrete had already existed with a UHPC binder for 20 years. With a special UHPC binder, it is possible to process a gigantic number of different solids and still achieve a strength that in many cases far exceeds that of standard concrete.
We have had an extremely refractory UHPC concrete that can withstand continuous temperatures up to 1200°C for 20 years. We combine UHPC binders with asphalt to achieve much more resistant pavements.
We can easily combine HPC and UHPC binders with natural fibres and materials in a way that is impossible with standard concrete. We can use UHPC binders to process fine materials such as dust or natural desert sand into concrete that meets the highest standard concrete strengths. Our UHPC strength values allow for much slimmer construction than is possible with standard concrete.

Due to the non-existent porosity in our HPC and UHPC binders, these concretes are extremely corrosion resistant, making them an ideal material for floating structures. This type of UHPC concrete has been used in the offshore industry for 20 years. Underwater foundations and structures can easily be built with UHPC. Tests have shown that UHPC structures can withstand water pressure from sea depths up to 3500 m without damage. We had these tests carried out more than 10 years ago.
We can make concrete structures with special UHPC binder that can be bent. There has been a UHPC lightweight concrete for more than 10 years that can be used as mortar, castable and spray. Nearly 20 years ago, a UHPC binder was developed for the navy that floats. For more than 20 years we have been producing UHPC binders that are close to diamond in wear resistance.
As our HPC and UHPC concrete are waterproof, fire resistant and high strength, they can be used for disaster control constructions. HPC and UHPC can withstand all environmental conditions.

Some of our HPC and UHPC binders are used in interior applications.
The nano-fineness of the HPC and UHPC binders allows extreme textures and finenesses to be achieved that surpass even the fineness in metalworking. Designers involved in concrete design do not even use 10% of the possibilities of UHPC Binder.
HPC and UHPC binders are the ideal materials to support traditional African and Asian construction as they combine well with local raw materials.
The security industry and the military of many countries have been aware of the enormous possibilities for a few years now. But even here, very specific tests show that the actual security and military possibilities are far from being exploited because of the traditional standard concrete way of thinking. The new UHPC safety room and bunker technology is in great demand, especially in Europe.

Even in the mechanical engineering industry, our UHPC materials have been used for 25 years. Producing industries such as cement works, mines, steel works, foundries, refineries, chemical works, power plants, bioenergy producers, etc. are among our long-standing customers.
We draw our knowledge and experience from, as you can see, a wide variety of international markets.
However, after more than 30 years, there are still markets or industrial sectors that are new and exciting for us. We have not yet reached the end of our development.

If a customer were to request a catalogue of our technology and its application, it would be several hundred pages thick. It would be more like a book than a catalogue. Such a book would be very expensive because of the possibly small print run.
This is why we have a rough draft of such a book in our drawer but have not yet realised it. The rough draft already had more than 300 pages. If enough people are interested, we will realise the book project. Write to us and we will inform you about the state of realisation.

As far as the samples of HPC and UHPC applications are concerned, it looks similar to the flyer. As you
have hopefully noticed, we have so many possible applications, designs that we are not able to offer you a sample of all HPC and UHPC possibilities. If you provide us with the most accurate specification of the HPC or UHPC you require, we will have this material manufactured in our laboratory in the form you specify. If you have problems with the specification, we will gladly provide you with a questionnaire that can certainly help you to specify your desired material exactly. Send us a short message with your contact details and we will send you the questionnaire as soon as possible.


WPE DK International

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




Special technical sales training sessions for HPC and UHPC markets and related products

In the last quarter of this year, we are almost fully booked with our technical sales training sessions (by no means to be confused with a presentation). 

 

These very specific training sessions focus entirely on the local market of our participants and the related HPC and UHPC materials. For this reason, only one country is admitted per training session. There are still training sessions booked this year by companies from Poland, Switzerland, Italy and South Korea. We do not charge our clients for the training. Therefore, only travel costs are incurred for our customers.


The joint preparation for the training usually takes about  4 weeks.
 

In the coming year, our new mobile training unit for practical processing training will start its service and can be booked by our customers worldwide. Here, all types of mixing and processing with all HPC and UHPC can be carried out practically.


WPE DK International

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

UHPC Concrete for windturbine floating systems

UHPC Ultra High Performance concrete has over twenty years of experience in the offshore industry. It is used as a construction material and as a corrosion protection material.
For floating windturbine constructions, UHPC offers
many advantages over steel constructions and
concrete constructions.

UHPC is absolutely seawater resistant and does not corrode. Most of the extremely expensive and maintenance-intensive corrosion protection systems are no longer necessary.
UHPC achieves extremely high strength values    (max.240 MPa / 34800 psi) even without steel, fiber or ceramic reinforcement. 

UHPC can be used as a cast material, spray material and as a mortar material.
UHPC reaches approx. 70% of its maximum nomina strength after 48 hours.
UHPC is self-compacting in casting. During casting,
UHPC develops significantly less heat than standard concrete. Problems like corrosion in weld seams do  not exist with UHPC.

A corrosion protection coating of the UHPC construction is not necessary.  

Due to the high strength values, the entire construction can be optimized for the required wall thickness and thus weight. There is also the option of using low weight UHPC. These UHPC are half the density of our standard construction UHPC. There is also a UHPC that swims with a density below 1. UHPC concrete can be manufactured and mixed locally on site. Costly transports can be omitted. For assembly stations in Arab, African and Indian countries, we could offer a binder that can be manufactured and mixed with desert sand. This would eliminate the need for additional, costly transports.

 

 

WPE DK International

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



UHPC custom made rotor and stator elements for a grinding systems

Original Rotor
One of our customers has a very special grinding system consisting of a rotor and stator made of a very
special stone. 


This grinding system is no longer built today. We were asked if we could rebuild the elements from UHPC for this grinding system, preferably from better wear-resistant material. 14 sets were to be manufactured, as the customer has seven such grinding systems in permanent operation.
We were provided with the only unused rotor and the stator element for measuring. 

 

New UHPC Rotor

We made an exact mould from hard plastic, each for the rotor and the stator. We chose a very resistant mixture with silicon carbide ceramics as the UHPC wear protection material. The mixture was very fine, highly flowable, highly pressure-resistant and fast-curing.
All our castings were almost perfect, required no reworking and could be used without any problems.
With this special mixture, we were able to increase the operating time fivefold.

 

New UHPC Stator element

 

WPE DK International

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

UHPC Spray Projects in a Northern European Ore Mine

An ore mine operator in Northern Europe has commissioned one of our customers to install a UHPC wear lining on several cyclones. 

The installation was to take place on site at the ore mine. A UHPC wear protection layer of 25 mm was to be installed. The time frame for the installation was very tight due to the mine. For this reason, a UHPC spray installation was chosen. UHPC spray wear protection is sprayed on using a wet process. This has the very great advantage of a controlled and uniform material quality. Since UHPC spray only produces a maximum rebound of less than 2%, there was also no material loss during the spray installation.

Our customer first sprayed half the circumference of the cyclone parts on site and then the other circumference of the cyclone parts. Due to the ambient temperatures, the lined parts could be transported and installed without any problems after 48 hours. directly after installation, this part of the plant could go into operation.

 

 

WPE DK International

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

UHPC Liquid-tight constructions

Liquid-tight constructions are becoming increasingly important for the economy and insurance companies worldwide. 


In the past, industries such as refineries, seawater desalination plants, sewage treatment plants,
hydroelectric power plants, offshore industries, etc. were particularly interested. There is a huge range of sealing systems for concrete structures. Most systems are expensive, complex to install and do not have the same life expectancy as you would expect from the structure. So the sealants have to be applied several times, which in turn leads to problems and enormous
costs. For a few years now, there has been an increasing demand for coastal protection and especially flood protection structures that have to withstand the constant attack of moving seawater caused by high and low tides, but also by enormous wave movements.

Another growing problem is the rapid change in the climate and the ever-increasing amounts of rainfall that lead to inland flooding and, among other things, also flood residential buildings worldwide, which then have to be repaired in a time-consuming and costly manner. Concrete sealants are of limited or no help here.

One solution is concrete structures made of HPC or UHPC concrete. Here, waterproofing can already be achieved with a wall thickness of 10 - 15 mm. This concrete layer can be subsequently applied to any substrate in industry as well as in residential buildings. This is also possible in countries with predominantly natural material constructions.  
If the ground floor is completely built of HPC or UHPC or provided with a protective layer, no flood water, which is usually also dirty water, can penetrate into the building structure. 

After the floodwater has disappeared, the walls and floor can be cleaned with locally available cleaning machines such as high-pressure water jets, after which this area is immediately habitable again.

In industry, a UHPC layer can completely prevent or hold back breakthroughs for a very long time in the event of liquid attack from the outside, i.e. from floodwater masses, or from the inside in the event of ruptures or leaks in liquid tanks.


Sewage treatment plants can be constructed directly from HPC or UHPC, or they can be retrofitted after prior inspection of the building structure. The same applies to biotank systems for the production of biogas.





WPE DK International

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

UHPC Wear Protection lined pipe components produced in Vietnam

 Peter Severin, our UHPC partner for Vietnam, in cooperation with a Vietnamese steel construction
company, will offer UHPC wear protection lined pipeline segments in all sizes and geometries. Peter and the steel construction company have many years of experience in the production of piping elements for hydraulic and pneumatic conveying. These pipeline components have been used in power plants, steel mills, cement works and mines for decades. 


WPE DK International

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

UHPC silicon carbide custom-made burner elements for an ALSTOM coal-fired power plant project

The company ALSTOM wanted us to place an order for the supply and lining of very special burner parts
for a coal-fired power station. Due to the coal composition, the specially required flow conveyance and the very high temperatures, our customer had specified silicon carbide as the wear protection material. After we had calculated the costs of the material and the production, the responsible project managers at ALSTOM almost had a heart attack. The costs were very far over the planned budget and the delivery time for the custom-made silicon carbide elements was almost three times as long as ALSTOM had planned. 

We then offered ALSTOM a lining with a silicon carbide UHPC wear-resistant concrete as an alternative. The material costs were reduced by more than 50% and the delivery time of the elements manufactured by us was reduced by more than 70% compared to the elements made of silicon carbide ceramics. As we had already supplied many UHPC linings for ALSTOM over the past decades, the project managers had complete confidence in our proposed solution.


The production of the burner elements was carried out according to our time schedule and the elements
have fulfilled their purpose until today. 


In the meantime, other burner suppliers for coal-fired power plants have also successfully used this solution worldwide.

 

 


WPE DK International

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

 

Our UHPC laboratory is visited by an old friend, who will take over the representation for Sweden, Norway, Denmark and Vietnam in the future.

We had a visit from long-time friends in our UHPC lab. We have known each other for more than 25 years
father and son, Finn Severin Jensen and Peter Severin Jensen. We all worked for the same company years ago. Finn and Peter were the best supervisors we had. They have worked as supervisors for UHPC installation in almost every country in the world. There is hardly anyone who knows the practice of UHPC installation in different conditions as well as these two. 


Peter will be our representative for all our HPC and UHPC products for Sweden, Norway, Denmark and Vietnam.
Peter is also planning to start a pipe section production including a wear lining in Vietnam in the next few months.


We are looking forward to a successful future together.

 


 

WPE DK International

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

UHPC flooring for the most extreme loads

UHPC Phalt and UHPC TopLayer are floor coverings for the toughest environmental, temperature, corrosion, load, wear and tear, extreme loads from special vehicles and their movements and the combination of all these loads.


UHPC Phalt is a semi-flexible overlay, a combination of UHPC mortar and asphalt.
The pavement is laid without joints, similar to an asphalt pavement, using the same machines.


 

 

 UHPC TopLayer systems are UHPC grout concrete floor coverings for extreme loads, wear and corrosion. As a special UHPC TopLayer system, we produce high-temperature resistant floor coverings for industry. Which can be subjected to continuous temperatures far above 800°C.

WPE DK International

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




What is hard concrete - and what is UHPC hard concrete flooring systems

Flooring systems

Hard concrete


Hard concrete is generally described by its manufacturers as a cementitious, highly durable and wear-resistant floor covering. It is laid in a bond to the substructure. An average layer thickness of 25 mm can be given.
The wear resistance has its limits where the floor is no longer grindable. In many countries, grinding of floor coverings is standard practice.

The characteristics of hard concrete are
- Highly resilient
- Scratch and wear resistant
- Liquid-tight
- Indestructible floor covering
- Design and showroom flooring

Areas of application
- Warehouses used by vehicles with rubber tyres
- Access ramps used by rubber-tyred vehicles
- Exhibition and show room flooring





 

 

UHPC hard concrete


UHPC high performance concrete or as we call it UHPC TopLayer is a mixture of special UHPC binder systems and ceramic aggregates. The average layer thickness can be specified as 15 - 50 mm. As UHPC TopLayer is designed to withstand the highest loads, it is almost impossible to grind the surface. UHPC TopLayer can be processed in the same way as hard concrete.



The characteristics of hard concrete are
- Extremely resilient
- Very high wear resistance
- Water and frost resistant
- Very high corrosion resistance
- Very high compressive and flexural strength
- Extremely temperature resistant


Areas of application
- Warehouses used by heavy vehicles and tracked vehicles
- Roads and storage yards for heavy load storage

- Flooring for ore mines, steelworks, foundries, cold stores, military areas and parking areas for heavy vehicles

 

 

WPE DK International

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


 

Heat problems on airports

The climate is changing, the summers are getting much hotter. The summers are getting so hot that
infrastructure constructions such as concrete roads and asphalt roads are reaching their limits. Here is one of many examples, airfields. The taxiways, aprons and parking areas have to be cooled with water because the pavement may reach its load limit. Costly and time-consuming repairs are the result. The heat waves are getting longer every year.
Wouldn't it be an improvement to use semi-rigid floor coverings with a temperature resistance of up to +90°C and very high load-bearing capacity in highly stressed areas? An alternative would be UHPC TopLayers that do not lose their peak load-bearing capacity even at very high temperatures.

 

 

 WPE DK International

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

Comparison Sand for the construction industry - Alternatives to Sand for the construction industry

 The global construction boom is continuing and will not decrease significantly in the future. climate change is forcing new constructions. Old constructions have to be replaced. Most of the world's major sites are on the coasts, and constructive coastal protection will buy these sites some more time, but the major sites will also have to change in terms of construction technology. Concrete as a building material is needed for this transformation.
Sand as part of this needed concrete has become a big problem. The gigantic demand leads to a lucrative trade business worldwide, which permanently destroys the nature of the coasts and rivers.
Several years ago we pointed out that with the UHPC technology it is easily possible to replace a very large proportion with recycled sand. Only these recycling plants for construction waste are rarer to find worldwide than diamonds. And yet, the expansion would be an extremely lucrative business, also for investors.
The fastest way to drastically reduce the current demand for sand is to use desert sand. For several years now, it has been possible to easily produce concrete from desert sand that is much stronger and easier to handle than standard concrete. If one were to calculate the current worldwide sand consumption as a standard, the desert sand of the Sahara would last about 100,000 years.
Even if the entire global construction industry still finds it extremely difficult to use desert sand, which there is actually no reason to do, development will force them to do so. For investors who become active now, this will be a gigantic business in a few years.


WPE DK International

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