UHPC Wear protection for an ore pallet plant in Bahrain

We have an order to supply and install a UHPC wear protection liner in a new grinding system at an ore processing plant in Bahrain. The new grinding system was designed and delivered by a large German plant manufacturer.

UHPC wear protection was specified by this plant manufacturer as wear protection for his system.

The contract included the lining of pipelines, cyclones and separator systems. The assembly of a 25 mm / 1 inch UHPC wear protection liner with a total area of over 600 sq / 6450 sq ft was performed by a local installation company under the supervision of one of our supervisors.

24 hours after the individual plant elements were lined, they could be mounted in the ore processing plant.

WPE DK - Entwicklung, Produktion und Anwendung von UHPC Werkstoffen

 WPE-DK ist eine Gruppe von Spezialisten mit jahrzehntelanger Erfahrung in der Entwicklung, Produktion und Anwendung von "Ultrahochfesten Bindersysteme" in Deutschland und eine Vielzahl von Partner weltweit. Einige von uns waren an der UHPC-Entwicklung in Dänemark von der ersten Stunde an beteiligt.

Wir haben viele UHPC Entwicklungen und eine große Anzahl von Anwendungen in verschiedenen nationalen und internationalen Märkten initiiert und praktisch begleitet.

Durch unsere Arbeit ist UHPC für viele Anwender weltweit immer interessanter geworden und WPE-DK zu einem führenden Unternehmen für die Entwicklung, Produktion und Anwendung von sehr hochwertigen UHPC Produkten.

Wir liefern nicht Standards wir liefern Kreativität 

Wir benötigen keine Kataloge für unsere UHPC Werkstoffe unsere Firmenphiliosophie ist das erfüllen von Kundenwünschen. Suchen Sie nicht nach Katalogware und Standardprodukte, verschwenden Sie damit nicht Ihre Zeit. Nutzen Sie die Zeit Ihre besonderen Materialwünsche für Ihr besonderes Projekt zu beschreiben. Die UHPC Technologie erlaubt es uns in der Produktion UHPC Werkstoffe genau auf die Wünsche unserer Kunden anzupassen.
Standards erzeugen Standards und keine freie Kreativität in Konstruktion und Design.

Ursprünglich wurden UHPC Produkte unter dem Projektnamen „Ultra hochfeste Binder“ entwickelt, was auch der Grund für diese Entwicklung war – es solllte ein extrem druckfesten Binder für einen extrem hochfesten Beton entwickelt werden. Die Bezeichnung „Ultra hochfester Binder“ ist unserer Meinung nach eine sehr eindeutige und klare Materialbezeichnung für jedermann.

Irgendwann in der Vergangenheit ist in der technischen Literatur und an den Universitäten der Begriff „UHPC Ultra High Performance Concrete“ benutzt worden und hat insbesondere bei den Anwendern erhebliche Verwirrung gestiftet. Wie kann man den Begriff „Performance“ weltweit technisch klar und eindeutig erklären? Es funktioniert nicht - jeder versteht unter den Begriff „Performance“ etwas anderes.

Inzwischen werden zudem international in der technischen Literatur immer neue Variationen und Abkürzungen für UHPC verwendet. Praktische Anwender wie Architekten, Bauunternehmer und Designer verlieren den Überblick und den Sinn dieser Bezeichnungen.

Hier möchten wir allen Nutzern und Interessenten helfen sich in diesem Dschungel der Abkürzungen und Materialqualitäten zurechtzufinden.

Da der Begriff UHPC von DIN oder ASTM weltweit nicht eindeutig definiert ist, können heute eine Vielzahl von Materialherstellern ihre Produkte unter dem Namen UHPC vertreiben. Viele der angebotenen Produkte haben mit der ursprünglichen Idee vom „Ultra hochfesten Binder“ nur noch sehr wenig zutun.

Unsere praktischen Erfahrungen aus den letzten 30 Jahren mit hochdruckfesten Bindersystemen wollen wir weltweit jedem Anwender und Interessenten zur Verfügung stellen.

WPE DK in Dänemark ist für das Design und die Produktion von UHPC Produkte zuständig. Zudem entwickeln und konstruieren wir UHPC Produktionsanlagen für unsere internationalen Kunden.

UHPC Wear- and corrosion protection for all pipe dimensions

UHPC linings of all kinds of pipes inside and
out was one of our first major projects more
than 25 years ago. The pipes should be
permanently protected against wear and
corrosion with UHPC under the toughest
conditions. First of all, pipes for pneumatic
material delivery lines in the cement industry
were lined. After that, pneumatic and hydraulic
pipelines for the coal-fired power plant industry
and the steel industry were lined. Later came
the offshore industry and the wastewater
industry. We lined pipes of any diameter from
40mm / 1,57inch to 8000mm / 315inch. Here,
the geometry played no major role, so
whether Y-piece, pipe bend, reducer, etc.

The huge advantage of UHPC over all liners at
that time was the seamless lining, the flexibility
in layer thicknesses, the variations in material
quality and the very high wear and corrosion
resistance for a very long service life. Even
today, pipes are in use that were lined 25 years
ago with UHPC.
Today, new pipe systems are lined with UHPC
or existing pipe systems are repaired with UHPC
material. It makes only a very small difference
whether they are concrete or steel pipes.

We use UHPC mortar, UHPC castable and
UHPC shotcrete as lining material. UHPC
Rapid material grades are used for extremely
fast repairs.

In the offshore industry, UHPC is used both
as the inner and outer lining of pipelines.
UHPC can also be used underwater. A 15mm
or 0,6inch thick UHPC coating is waterproof
and absolutely corrosion resistant. A UHPC-
lined offshore structure no longer requires
regular corrosion protection coatings. UHPC
is used today as a material for offshore
constructions and offshore foundations
worldwide.

For some years, we use high temperature resistant
UHPC material in the steel industry. Hot gas
temperatures up to more than 1000°C / 1832°F
are no problem here. We also coat hot gas pipe
system with a combination of UHPC and high
performance insulation. This makes it possible
to dispense with stainless steel as a construction
material, which in turn reduces costs enormously.


Wastewater pipelines, storm water drains, storm
water storage systems road drainage systems,
sewage systems and culverts whether made of
steel or concrete, can be easily repaired with
UHPC. It is not necessary to clean the
construction of rust before you start with the
lining. With UHPC Shotcrete, larger pipelines
can be quickly and permanently repaired. Due
to the extremely low rebound of less than 3%,
special cleaning work in the pipeline is not
necessary.

Smaller repairs can be done quickly with UHPC
mortar or UHPC Cast. As UHPC materials
exceed the compressive strength of all standard
concretes by more than once, steel and concrete
pipelines are more resilient after a complete repair.

Advantage of UHPC 
Absolutely waterproof
Absolutely moisture resistant
Extremely corrosion resistant
Very high life expectancy
Very good resistance to a variety of chemicals
Very high strength


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



 

UHPC Informationen für Leute aus dem Ruhrpott (nicht ganz ernst gemeint)

Der UHPC Zement und wie de den anmischs für Leute wie Du und Dich

Dat UHPC Material wird Dich in 25 kg schwere Papierksäcke angeschippert. In einer von den Säcken is der Bindär drin. Dat is der Säck mit der UHPC Logo drauf. Der andere Sack is kackbraun, da sind die Keramikklümpkes oder wenne wills Sand drin. Wenne Deine Brille aufsätzt findese auf den Bindär Papiersäcke sonne kleine Gebrauchsanleitung. Da kann jeder der ät will allet nachlesen wat ich versuch Dir jätz pö a pö beizubringen.

Dat Material soll trocken gelagert werden, also nich in freier Natur wie beim Kämping. Dat kann nämlich sein, datte dann wenn der Sack än bisken Feuchtigkeit oder wat Wasser bekommen hat, dat dat Material dann Klümpkes macht und dat is nich schön, ganz ährlich. Denn dann musse nämlich wieder neues Material bestellen. Also lass den Mist mit der Freilandlagerung und lager der UHPC anständich wie et sich gehört. Man Du wirst doch irgendwo än Schuppen finden. Dat mixen mit der Mixer von dem UHPC erklär ich Dir erst später.

Ers ma noch wat allgemeines, langweilich ich weis aber wat sein muß mut sein. Also der UHPC besteht aus sonnem Puder, so fein wie Mamas Make up und Körnkes (nich zum suppe) aus Keramik oder Sand sind auch drin. Die Körnkes sind so über den Daumen gepeilt max. 3 mm dick und glitzern wie Schwaroski Diamatkes. Dat UHPC kannse als Pampe für de Kelle und Pampe zum verschütten und sogar zum anne Wand zu verspritzen bekommen, musse nur sagen watte wills.

Jäz muß ich Dir dat mit der Temperatur noch dich erklären. Dat is unbedingt wichtig. Es gibt nichts zu malochen wenn et draußen unter 5°C is. Dat is ja auch für unsereiner Scheißkalt kann ich Dir sagen. Wenne aber trotzdem malochen wills, wegen de Weihnachtsprozente, dann bring Dir än Stöfken mit, damitte ät mollig warm has und pack dat Blechkonstruktion watte auskleiden wills von außen mit sonne Dämmmaterial ein. Isset aber über 30°C warm draußen, zum Beispiel in der Wüste, da isset wirklich warm, dann musse Dir än schattiges Plätzken zum malochen suchen. Also bi kul män. Am besten Du malochst in der Nacht wenn et dunkel und än bisken kälter ist. Dat hat noch än anderen Vorteil, die Anderen pennen und stehen Dir nich in de Füße rum.

Dann war da noch wat mit der Oberfläche. Also die muß schon wat sauber sein, ärlich, aber nich wie geläckt. Wenne dat Streckmätall gebrauchs, dann denke immer daran, dasse bis 20 mm Schichtstärke (dat is ungefär zwe finger dick, wenne keine Wurstfinger hast) von dat UHPC Mörtelpampe datte dat Streckmätall diräkt auf den Blech brennen kann. Brenn dat Fliegengitter vernünftig auf aber mach blos keine Ingeniörsarbeit daraus und en Preis dafür dasse jeden Quadratmillimeter damit auslächs krisse auch nich. Willse mehr von der Pampe daruaf machen, musse än paar Stäbskes so 6 mm dick unter dem Streckmätall hauen, wegen den Abstand und so.Überall wo de die Pampe hinklatschen wills musse dat Gitter dranbrennen, denn ohne dem Gitter kannse die Montage von dem Material vergässen, ährlich hab ich schon versucht klapp nich, kannse mir glauben.

Jäz kommen wir zu wat ganz wichtigem. Also da musse wirklich fein aufpassen mit dem lesen, sonst is der Spaß vorbei mein Alter.

Also ganz langsam für die Schnelldenker unter uns alten Kameraden:

Such Dir erst einmal än Topfmischer. Dat is än Mischer wo der Mischergabel unten am Boden des Topfes befestigt is un sich dreht und nich där Pott. Mit wat anderem kanns dat Mischen von dem UHPC einfach vergessen, versuchet ärs garnich.

Haase also den Mischer, dat UHPC musse vor allen Dingen sauberes Wasser mischen. Dat muß so sauber sein, dasse dat selber suppe kanns. Nich mit Dräk und so wie bei Dir inne Badewanne, dann kannse mit der Maloche beginnen. Kuk dasse bei der Maloche noch paar Hiiewis Dir besorgen kann, wegen der Transport von dem Material. Ich kann Dir sagen, wenn du dat Material in Eimer än paar Mal durch die Gejend schlepps, hasse Arme wie son Affe und Abens krisse dat Bier nur mit beiden Händen hoch. Da is nichs mehr mit Mutti stemmen. So dat zur Einleitung jätz fangen wir mit dat mischen an.

Ärs ma tuse dat Binderpulver in der Mischer, dat is där Sack mit der UHPC Schrift, kanns gans einfach märken und danach ein kackbrauner Sack mit der Keramik oder Sandklunker und läste än bisken drehen. Nach än paar Minütkes tuse dat Wasser dabei. Aber pö a pö, nich so wie Du de Bierken schlucks. Dat mit der Wassermenge hängt janz wichtig von der Temperatur wo de malochs ab. Isset scheiß heiß dann wirsse wahrscheinlich än bisken mehr als dat maximale Wassermenge brauchen. Weenet aber kalt wie in Sibirien is, dann kommse mit dem minimalen Wasser aus. Weenet wirklich kalt is, am besten Du machs dann en Feuer unter dem Wasser damit et schön heiß ist wenne dat im Mischer gibs. Im Normalfall brauchse maximal 3,5 l Wasser. Wenne nich weiß wat 3,5 l sind, dann frachse einfach den Polier.

Nun hasse also dat Wasser reingeschüttet und nu musse so ungefähr zehn minütkes mischen. Wenne keine Uhr has, dat sind ungefähr zwei Zigarettenlängen und wenne nich rauchs hasse Pech gehabt.

Dat mit dem anne Wand machen is sonne Sache. Ärs mal füllse die Pampe im Eimer und bringse dat dahin wo Du dat anne Wand machen wills. Trach dat Zeugs immer in ferticher Schichtstärke sofort auf, sons blättert der Mist später wieder ab. Und tu dat Kuring Kompaunt drauf wenne dat UHPC Material aufgebrachs has und nich ärs später. Du weiß ja wär zu spät kommt der wir mit dat Leben bestraft..

Wenne allet damit beschmiers has und kaputt fonne Maloche bis hasse jätz zwei Tage zu pennen, denn erst danach kanns dat so angeschmierte Teil inne Betrieb nehmen und nich äher. Du weiß wer da schummelt der darf nochmal von vorne anfangen.

Solltese trotz där genialen Malochetipps nicht vorwärts, dann rufse den Riediger egal zu welche Zeit an. Der wies mit Sicherheit än bisken weiter, denn der hat schon allen Scheiß mit den UHPC schon mitgemacht. Also trau dich Alter.

Alles gute von Kowalski

An unusual bond and impact test with UHPC mortar

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.

 

 

Recycling of UHPC concrete compared to standard concrete

Our UHPC concretes are far superior to standard concretes in all technical properties and actually
make them a competitive material for steel. Also in this comparison, UHPC concretes have advantages such as corrosion resistance and temperature resistance, etc.

UHPC concrete constructions achieve a multiple service life of standard concrete in comparable constructions. This means standard concrete structures are demolished much faster and the debris has to be recycled. The demolition material is used as gravel. It is currently trying to recycle this demolition material as a building material.

In addition to a longer service life compared to standard concrete, UHPC also has many advantages here.

1. UHPC concrete has a very high compressive strength which is similar or better to many standard aggregates of standard concrete.

2. UHPC concrete granules have no to extremely low porosity. Thus, UHPC Granules does not absorb very little water.

4. UHPC concrete granules are corrosion and seawater resistant. UHPC concrete granules can be easily processed with standard concrete or UHPC concrete.

6. At the moment we are working on trying to prepare standard concrete material granulate, so that it can be used as a fine aggregate for some UHPC grades.

7. We also plan to use recycled UHPC high temperature material. It could very well be used as aggregate for UHPC HT or for refractory materials.

Short time repair story of a oil rig with UHPC

An oil company had very big problems with an old pumping station in the Bay of Bengal. Due to
massive corrosion on some columns, the entire statics of the conveyor station was endangered. It was expected that they have to give up the station in a short term.

The only technically feasible solution that offered itself at short notice was the filling of the columns with UHPC concrete. A demand of approx. 600 tons of UHPC material was determined by the oil company. Within a week, the 600 tons could be produced.

The procurement of raw materials was the time factor here. The actual production did not take more than 1.5 days.
There was no time to ship the UHPC material to the Bay of Bengal. The oil company rented Anotonow AN 124 aircraft for direct transport.
On site, a ship was chartered for the material and the mixing systems. On the ship, the UHPC material was mixed by specialists and pumped into the columns.

What were the reasons why the oil company chose UHPC?

1. The fast availability
2. The fast strength development
3. The absolute sea water / corrosion resistance
4. The fast processing, even on the high seas
5. A long-term technical solution

New use of recycled windmill rotor blades as aggregate for UHPC concrete

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. 

 

In order to carry out reuse, recycling and upcycling as standard in the near future, special UHPC concretes are the ideal combination partner. It should also be possible to add construction material from wind turbines to our UHPC with appropriate processing. This could then possibly be used again as foundation material for new onshore or offshore wind turbine.

UHPC design for Gas, Hydrogen and E- loading station

Gas, Hydrogen and E-loading stations should get a UHPC concrete design. Every future energy filling station design should be unique.

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.

UHPC Helicoper landing pads concstructions

For more than 20 years, UHPC Ultra High Performance Concrete has been used as a
floor covering at airports worldwide.

UHPC as a concrete floor covering or in combination with asphalt (UHPC Phalt) are extremely resilient floor coverings for runways, hangars, aprons and warehouses. In terms of their technical properties, they exceed the existing standard coverings several times over, especially with regard to compressive strength, temperature resistance, corrosion resistance and wear resistance.

Helicopter landing pads for civil and military helicopter are rarely made from high performance UHPC unless the landing pads are to be created in exceptional locations or under exceptional environmental conditions, such as in extreme altitudes, extreme climatic conditions, offshore platforms, exceptionally low ground structures, civilian and military vessels.

Certain UHPC material combinations have ductile properties which have proven to be
particularly suitable for moving steel
constructions in many industrial sectors.

UHPC in combination with steel constructions can increase the load bearing capacity of the steel constructions while protecting them from all extreme environmental influences.

In addition, our UHPC concrete or UHPC Phalt  has an extremely fast strength development, so that the landing area can be used after a short time.can be laid very quickly and the  and can be used in a very short time.

Green bus roofs made of UHPC design

Insects are essential for the survival of humans and
nature. The cycle of nature would be decisively
disturbed, if not interrupted, by the death of many
species of insects.
The idea of ​​us and more and more architects was
the insects to rebuild a habitat in the cities. One
possibility is the vertical gardens or green facades.
In our opinion, quick support for the insects is the
greening of roofs of bus stops. They are small areas
but they are spread all over the city and not like a
facade in one place.
Architects find the idea incredibly good, as the bus
stops usually have a bad design. Roof greening
makes it possible to make bus stops an interesting
design element in the cities. Meanwhile, there is a
veritable ideas hype.


Why UHPC Ultra High Performance Concrete?
1. UHPC can be used to produce UHPC precast
concrete elements with a minimum thickness of
10 - 15 mm / 0.4 - 0.6 inches.

2. UHPC achieves 70% of its nominal strength
in just 48 hours, which means many advantages
for finished element production.

3. UHPC elements are absolutely corrosion
resistant

4. All design ideas can be realized with UHPC

5. Due to the low weight, the assembly can be
carried out quickly and without effort

6. Our UHPC concrete can be easily combined
with a variety of other materials such as glass,
metals and wood combined.

7. We intentionally do without the use of plastics
in our design

8. The stops can reach a lifetime of at least 60 years

9. Our UHPC is absolutely resistant to de-icing salt.

10. The bus stop area is filled with a combination
of asphalt and UHPC. This makes this area highly
wear-resistant even at temperatures up to 90°C / 194°F



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

UHPC concrete and optical fiber for Media Architecture

Some years ago, a customer approached
us with the problem that he needed a
wear lining in a brown coal dust silo and,
if possible, in combination with a lighting system. The problem was that lignite
dust is highly explosive.

The solution we offered and executed
was a UHPC® wear protection liner in
which we inserted optical fibers. With
optical fibers we could have solved two
problems at once; first, the lighting and
second, the existing wear can not interfere
with the function of fiber optic lighting.

This combination UHPC® / optical fiber
was also used by a customer for illuminated
facade elements.

2001 First tests with UHPC / optical fiber elements

Here, too, environmental influences could
not hinder the function of optical fibers as
lighting. This system is completely
maintenance free.

Similar application ideas already had architects and designers for UHPC® ceiling panels and
wall panels. The advantage is architectural
and designer's view is that the lighting is not visible during the day. No matter which
geometry or surface structure the UHPC®
element has, the optical fibers are not visible. Another advantage is that optical fibers do
not generate heat.

Lamp design made of UHPC® with optical
fibers have already been manufactured.
Interior architects have designed bar counters
made of UHPC® and optical fibers.

Today, these solutions are used and further
developed, among other things, in Media
Architecture.

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

 

UHPC Navy Concrete - Ferrocement

The technique of using fine wire mesh as a 
reinforcement for concrete (ferroconcrete) 
structures is already very old. This 
technique has been used above all in the 
manufacture of boat and ship hulls, simple 
construction elements and in the design 
sector.

Today, less so-called chicken wire mesh is 
used and more plastic and ceramic mesh is 
used, which exceeds the tensile strengths 
of steel several times over.

With UHPC (Ultra High Performance 
Concrete) Navy binder it is also possible to 
use very fine aggregates, which in turn make 
it possible to use very fine meshes. Modern 
high quality UHPC Navy materials are a 
multiple times superior to standard concrete 
in all technical values.


UHPC has been used in the offshore industry 
for more than 25 years as a construction 
material and as a corrosion protection material 
under the harshest environmental conditions. 
In many areas, UHPC is superior to steel and 
replaces it there.

UHPC Navy offers the professional navy 
architect, boatbuilder and shipyard a more 
than interesting alternative to steel, plastic 
and wooden constructions.
Production methods such as casting and 
spraying and the rapid development of 
strength can save enormous costs.


This new development also makes it possible 
to manufacture boats or ships in series. 
Special hulls are possible. UHPC designs for 
floating windmill systems are in production today.

 

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

 

 

 

 

 

 

WPE DK International

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