


UHPC Ultra High Performance Concrete is a material with immense possibilities. WPE DK International has more than 30 years experience in the development, production and industrial applications of UHPC Ultra High Performance Concrete materials. We produce UHPC Mortar, UHPC Castable, UHPC Shotcrete, UHPC Offshore, UHPC Security, UHPC TopLayer und UHPC Wear Protection
An unusual bond and impact test with UHPC mortar
This test was carried out by us more than 15 years ago. The aim was to test the adhesion of UHPC mortar in a pipe section. For this purpose, a pipe section was provided with only a few small anchors.
Only half the circumference of the pipe section was lined with UHPC mortar in a layer thickness of 25 mm / 1 inch. The half-circumference lining was chosen to increase the load in the event of an impact.
As you can clearly see in this video, the adhesive force of UHPC mortar is so great that it took several impacts and a deformation of the steel structure to release the UHPC mortar lining from the steel structure.
UHPC grouting material is used worldwide in the
in the offshore and onshore industry worldwide for more than 25 years.Mostly, UHPC Grout has been used to make transition pieces and foundation systems for wind energy, oil production, tidal power plants and floating windmill platforms. There are also plans to use UHPC concrete as corrosion protection for the systems in these areas. It would be a safe, easy to install, cost effective and durable solution. Another development for the future is the combination of UHPC concrete and recycled rotor blade material. Several thousand used rotor blades from offshore and onshore wind turbines are lying on the ground around the world to be recycled or disposed of. Storage has become a very big problem in some countries. In many industrial
applications we use glassglass fibres, carbon fibres or plastic fibres asaggregates to our UHPC concrete.
We want to get away from the standard unit sheet design. The idea is to create bold, curved, interesting roof structures, possibly greened and provided with solar panels made from our UHPC concrete.
No armada of petrol pumps, which you will not need in the future,
but a few dispensers in combination with e-charging stations, for cars, trucks, motorcycles and e-bikes. The petrol pumps / charging stations are to get a design from historical to futuristic. In addition to a bar, would be possible, for example, a sports bar or snack bar after American Hard Rock Style or French Bisto. No supermarket where you can
chance to refuel. In addition to the bar, a workshop should be connected for special vehicle types, perhaps historic vehicle types. No mass
repair, the vehicle owner may be present during the repair and possibly
see from the sports bar howhis vehicle is being repaired.
Our UHPC team will create a gas stationthat is not a fast transit station, but a place to stay and meet, built with the utmost sustainability.
The first specifications are about to be completed, some architects have alreadysent their ideas and the first interested parties and investors have invited us to talks.
The gas station of today, is a dying system, which will not survive. In a very short time, there will be fewer and fewer gasoline powered vehicles in many countries. The new vehicle types will be powered by electricity or hydrogen. The gasoline powered vehicles will then be more and more vehicles, which one will call historical vehicles. These historic vehicles will, as they always do today, have their fans and drive on the streets.
2001 First tests with UHPC / optical fiber elements |
Statement on Ferrocement | Statement on UHPC Navy |
Ferrocement = Steel reinforcement plus mortar concrete Small dia high tensil steel rods sandwiched between layers of wire mesh (chicken mesh) |
UHPC Navy = Steel, cermic fiber or plastic fiber reinforcement plus Ultra High Performance Concrete Extreme high tensil strength ceramic or glasfibre mesh and ceramic rods |
The shell structure of mortar and steel would be sufficiently impermeable, strong and impact resistant and with the right degree of flexibility |
The shell structure of UHPC Navy and reinforcement would be high sufficiently impermeable, extreme strong, very high impact resistant and with a extreme high flexibility. |
Ferrocement boats are produced in Britain, Canada, South Africa, Hong Kong and USA |
Hong Kong, Singapore, United Arabs Emirates |
Ferrocement hulls do not rot, nor do such marine animals as bores and tered worm have any effect on the mortar |
UHPC Navy hulls are absolutly sea water resistant, absolutly restinstant against marine animals high dense structure and extreme high corrosions resistant |
Ferrocement hulls are stronger than hull build in wood or glassfibre |
UHPC Navy hulls are much stronger than hulls in wood or glassfibre |
A partical characteristic of ferrocement, unlike others, is that if gains strength with age rather than loose it. |
UHPC Navy already reaches more than 70% of final strength after 48 hours and gain strength with age. |
Ferrocement Tensil strength 37 MPa Compressive Strength 83 MPa |
UHPC Navy Tensil strength 52 MPa+ or 755 psi (depends on reinforcement system) Compressive strength 140 MPa+ or 2300 psi (depends on reinforcement) |
Ferrocement is high temperature resistant | UHPC Navy is very high temperature resistant. In a special high temperature resistant version UHPC Navy it temperature resistant up to 1200°C or 2192°F |
Ferrocement has a very low thermal conductivity |
UHPC Navy has a low thermal conductivity in combination. With special insulation aggregates UHPC will have a extreme low thermal conductivity |
Absence of maintenance cost for the hull | UHPC Navy hulls are maintenace free |
A problem would be the difficulty of achieving complete penetration of mortar through the mesh matrix |
UHPC Navy mortar, spray and castable products are selfcompacting. The penedration through the mesh is nearly to 100% |
Portland cement, Slag cement | UHPC Navy Binder |
Water/cement ratio 0,35 | Water/ cement below 0,25 |
Aggregate: Sand which pass 3/16 in sive | Aggregate: 0 – 3 mm Quarzsand or insulation material in the same grain size or desert sand |
Mixing ratio cement : aggregates 1:2 | Mixing ration UHPC Navy binder : aggregates 1:1 |
Density 2400 | Density 2400 |
Admixtures: for improve workability, durability, acclerate or retard setting and hardening Such admixtures are only introduced in minute qualities to produce the desired effect, therefor the degree of control must be very high. |
Admixtures are not necessary for UHPC Navy |
Recommended mixer is that which has a paddle attached to the inside of the drum to keep the mortar mixing evenly. The mixer is often referred to as a plaster´s mixer |
Pan pot mixer or shaft mixer |
Min. boat size approx. 18 ft | Not known |
Hull skin thickness 3/4 in | Hull skin thickness max. 3/4 in |
Salary rates for mortar work very high | Labor costs much lower, installation as shotcrete, casting and mortar possible. UHPC Navy material is self-compacting. |
No serial production possible | Series production easily possible |
Phone: 0049 176 601 73146
E-mail: info@wpe-dk.dk
Homepage: www.wpe-dk.com
Research in deep sea construction
For more than a year, we participated in a research project of a German university. It was about the exploration of future concrete constructions for the deep sea.
For a few
weeks, the result is available. The UHPC Binder material manufactured by us
passed the tests by far from other binder materials.
The reasearch team of the university did models made of different concrete materials The models have been tested for corrosion, leaks and pressure resistance. The compressive strength should be so high that the concrete construction can withstand a sea pressure of 3500 m /2.17 mi permanently.
Research in deep-sea energy storage
Another interesting research project is the construction of compressed air storage balls for the deep sea. The first concrete ball was manufactured in Germany by the Hochtief company and successfully tested as part of a research program. A very good standard concrete quality was used, but it reaches its material limits with a diameter of over 3 m.
One problem that still needs to be solved is the limited transportability of such hollow spheres due to their diameter.
For commercial use, the diameter must be larger. This means that the hollow spheres have to be manufactured on site, which is very costly, or the hollow sphere is manufactured from several prefabricated UHPC concrete elements, similar to the tower elements in wind power plants.
UHPC Offshore grouting could be an interesting alternative solution to this standard concrete here.
Why?
UHPC has a very high compressive strengt of over 200 MPa / 29000 psi
UHPC has been used in the offshore sector for more than 30 years.
UHPC is absolutely resistant to salt water
UHPC is easy to pump and is self-compacting
UHPC constructions can withstand much greate external and internal pressure loads than standard concrete. Due to the enormous compressive strength, the necessary wall thicknesses can be reduce depending on type of construction
UHPC is waterproof from 10 mm thickness. Steel reinforcement is much more corrosion-proof in UHPC than in concrete
UHPC has an extremely low to no pore volume.
As far as the heat development during pressure build-up is concerned, the standard version of UHPC is temperature resistant up to 450°C. In the high temperature version, UHPC is permanent temperature resistant up to over 1000°C / 1832°F.