UHPC pavement for extreme heat and extreme cold

 

Asphalt road surfaces have very big problems when there are extreme summers with long-lasting very
high temperatures. The asphalt loses its bearing capacity the higher the ambient temperatures become, it becomes soft. In extreme cases it sticks to vehicle wheels and shoes. Accidents can occur because there is no longer any adhesion to the surface. Likewise, in extreme cases, people can no longer walk on these surfaces or roads are closed because of the risk of accidents.

Standard concrete road surfaces have problems in extreme cold. Cracks in the concrete and salt spreading to keep the roads passable destroy the concrete including reinforcement in the long run. Water penetrates the concrete cracks, freezes to ice, expands and cracks the concrete. De-icing salt penetrates the concrete cracks, the reinforcement corrodes, expands and blasts the concrete from the reinforcement. 

 

We will always find these extreme situations in many parts of the world in the future. The cost of maintaining transport infrastructure is immeasurable. It is impossible under the present conditions for road and bridge maintenance to carry out all the necessary repairs. In addition to the lack of financial budgets, many places also lack the staff to carry out this work.

UHPC Phalt semi-rigid overlays could be a durable solution for such extreme temperatures. This solution
combines the flexibility of asphalt with the very high load-bearing capacity and wear resistance of UHPC concrete. The standard asphalt is modified in its structure and serves as a matrix for the very fluid UHPC concrete. The UHPC Phalt slurry penetrates the asphalt matrix via the open-pored structure and fills it completely. 

 

 

 

WPE DK International

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

 

We increase the sustainability of UHPC

With our high-performance UHPC products, we started

using sustainable products years ago. We are also

increasingly focusing on sustainability when it comes

to units for our UHPC binders.

One example is corundum, which we use as an aggregate,

among other things. Corundum can be produced as

synthetic corundum with very high energy consumption

or can be mined as natural corundum in open-cast mining.

We have chosen natural corundum for more than 15 years.

Together with our partner in Africa, we pay attention to a

nature-friendly mining and an equally nature-friendly

restoration of the surface areas. The natural corundum

mined by our partner has proven to be an almost perfect

unit for our UHPC over many hundreds of applications

in the offshore industry, architecture, wear protection

and security industry.

Another problematic aggregate of quartz sand, we can

completely replace today with desert sand, including

from Africa. The technical values ​​of desert sand

concrete are far above the best standard concrete.

In our opinion, it is not necessary to destroy beaches

and rivers by sand mining. The cost of desert sand

mining is many times less than the predatory mining

of river sand or beach sand.

As far as the reinforcement systems or fiber systems

are concerned, nature offers us very sustainable

products that can be used in combination with

high-quality UHPC binder systems to create a perfect

sustainable product.

Our goal is always to produce UHPC binder systems

so flexibly that we can always use a high proportion

of local raw materials.

WPE DK International

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