Showing posts with label semi-rigid top layer. Show all posts
Showing posts with label semi-rigid top layer. Show all posts

UHPC Phalt a semi-flexible pavement system

UHPC Phalt is a grouted macadam comprising an open graded asphalt that is flooded with high strength microsilica based mortars. The open graded asphalt is mixed to a design mix at a local asphalt plant and delivered to site in tipper trucks. It is placed via traditional paving techniques.
The UHPC Phalt mortars are delivered in 1 tonne bags and mixed via a continuous flow shaftmixer and pump machine. The mortar is mixed for a certain amount of time to achieve correct viscosity then
flooded via a large hose onto the asphalt matrix.

UHPC Phalt can be laid at depths of 30 mm / 1,18 in upwards (typically maximum depth used is 40 mm /1,57 in). UHPC Phalt is the top layer of the pavement that is supported by a basecourse layer. The basecourse layer can vary dependent on environment and loadings, internal or external applications. Preferred basecourse materials to support the UHPC Phalt topping are high modulus macadam basecourse. CBM bases are ideal for use for large internal areas.

Asphalt disadvantages insufficient stability and deformation resistance


- Static point loads
- Trailer supports
- Forklift traffic
- Tracked vehicles
- High-bay warehouse / heavy-duty warehouse
- Ruts, wave formation (bus stops, intersections,    
Open graded Asphalt
  roundabouts)
- Low wear resistance when using forklift forks,
  loading shovels, roll containers

Advantages of UHPC Phalt

- Very high load carrying capacity
- Frost and dew resistant
- Jointless laying
- Quick installation
- High early strength
- Temperature resistant from - 60°C/-76°F 
UHPC Phalt
   to  +90°C/194°F 
- High wear resistance
- Resistance to aggressive media
- Long service life 
- Good to very good recyclability
- Much faster to lay than standard floor concrete
- Very short curing time
- Substantially cheaper than standard floor concrete

Where is UHPC Phalt used?

- Airports
- Ports
- Lorry marshalling areas
- Service yards
- Acces roads
- Bus stations / depots
- Waste management facilities
- Roads
- Car parks
- Distribution center
- Indoors for warehouse floors
- Anywhere that concrete is conventionally used


WPE DK International

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

 


 

UHPC Flooring systems for the heavy duty industry

For more than 25 years, UHPC TopLayer and 
UHPC Phalt materials have been produced and 
used worldwide in a wide variety of industrial sectors.
We do not see UHPC TopLayer or UHPC Phalt as an 
alternative to normal road or industrial floor coverings, 
UHPC material is used where these normal road 
coverings and pavements meet their load limits.

That can be at
- Extreme temperature stresses
- Very high point / pressure loads
- Very high wear and impact
- Chemical / corrosive attac
- Extreme environmental stress


UHPC TopLayer
UHPC TopLayer is a fiber reinforced UHPC concrete
product with a compressive strength of
125 MPa - 250 MPa or /17400 psi – 36250 psi
after a curing time of 24 hours.
The standard lining thickness is 25 – 50 mm or
1 inch - 2 inch

Advantages
- Fast development of compressive strength
- High wear and impact resistant
- High compressive strength
- Absolute frost and thaw resistant

- Impermeable to fluids but still vapor permeable
- Anticorrosive features
- Good bonding to sub-bases, aggregates and
   reinforcement
- High temperature resistant, in our UHPC HT
   version we can allow max. temperature of 1000°C/ 1830°F
- Jointless lining
- TopLayer surfaces require no sealing for
   industrial applications.
- Fast curing
- Sort repair stops

UHPC TopLayer can be processed and installed with standard road construction processing machines.


UHPC Phalt

Is a joint-free semi-rigid top layer. It combines the extremely
high compressive strength of UHPC Phalt mortar
with the flexibility of an asphalt.
UHPC Phalt system is produced by laying an asphalt
support frame with approx. 25 - 30% cavity content,
which is poured with UHPC Phalt binder.

UHPC Phalt can be processed and installed with standard road construction processing machines.

Advantages
- Extremely good combination of strength and flexibility
- Seamless coating for interior and exterior areas
- Compared to standard road and outer linings,
   extremely high load capacity and durability
- Temperature stable from -50°C/-58°F to +90°C/194°F

- High static loads possible
- No dust generation
- High resistance to frost and de-icing salt
- Very good chemical resistance
- Very good wear resistance
- Fast installation
- UHPC Phalt surfaces require no sealing

Applications
Mines – Roads
Desert - Roads
Chemical plants – Roads, Safety areas
Refineries – Roads, Safety areas
Roads on the water on dams, jetties and bridges
Specifically, for example, steelworks, vertical
starting jets launch pads, rocket launch pads,
heavy military vehicles, etc


Repair / maintenance
In principle, all concrete floor/pavement coverings
and road surfaces can be repaired in the shortest
possible time by using UHPC TopLayer or
UHPC Phalt.
Asphalt material can be reused as an aggregate for
UHPC TopLayer material or UHPC Phalt material.
Prior to re-use, a processing test should clarify which strength values are achieved by the re-used asphalt material. With UHPC Phalt, it is also possible to fill hollow spaces very well under the asphalt layer, which has been leached out, for example, by high water. UHPC Phalt is extremely fluid and penetrates intoall cavities and cleaves and fills them.

 

WPE DK International

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