HIGH-TECH ROADS FIT FOR THE FUTURE

11.05.2020  //  Other uses

FIRM FOUNDATION FOR A HUGE FULFILMENT CENTRE

It’s a source of annoyance and a major time-waster for motorists, and it’s also an unnecessary cost pusher for road builders: the longer roadworks or closures are in place, the more expensive it gets. By using fibre reinforced concrete, you can shorten the construction time dramatically. You end up with high-performance traffic areas that are not only extremely economical; they are also exceptionally safe and durable.

HIGH-PERFORMANCE
TRAFFIC AREAS

Fibre reinforced concrete may not yet be the norm in road building, but it’s already broken several records. This innovative material does not simply guarantee rapid and economical construction progress; it also results in incredibly impact-resistant road surfaces which are much less prone to rutting and extremely resilient to frost and de-icing salts. That means enhanced safety for drivers, an extended service life for infrastructures and in the long term also lower costs for renovation and repairs. Three typical projects in which KrampeHarex® fibres were used are described here –  in Kerpen (D), Löwen (BE) and Rotterdam (NL).

KNOW WHY
THE A61 MOTORWAY IS SO STABLE
40 kg/m3
Fibre content
DE50/0,8
Fibre type
C30/37
Concrete
Same performance, lower costs
for the A61 between Bergheim and Kerpen
When the North Rhine-Westphalia regional road construction authority decided to renovate the A61 motorway between Bergheim and Kerpen (D) in 2010, they were looking for a solution that offered optimal value for money. The invitation to tender stipulated 80 kg of steel fibres per metre cubed of concrete. After analysing the application conditions and constraints and carrying out a static calculation, we were able to halve the originally envisaged quantity of steel fibres without compromising either the high quality or the performance of the concrete. It was not possible to use a blower here. The premixing into the aggregate without any fibre balls and the homogeneous addition of 8/16 grit were two factors which contributed to the success of the overall project.
Know why
less is also enough
15.000
m2 Base plate
DE50/1.0N
Fibre type
PM12/18
Fibre type
Economical in every respect
Bus depot, Belgium
This project in Löwen (BE) demonstrated just how economical traffic area construction can be using steel fibre reinforced concrete. We supplied 35 kg/m³ of KrampeHarex® type DE 50/1.0 N fibres and 0.6 kg/m³ of type
PM 12/18 fibres to help build a new bus depot. They were needed for an elastic, 15,000 square metre, steel fibre reinforced concrete slab, which was divided into 5.0 x 4.5 m sections 20 cm thick. Significantly less concrete was required here compared to the traditional method. Once again, the use of steel fibre reinforced concrete resulted in a substantial cost saving.
KNOW WHY
compressive strength always comes down to type
60.000
m2 Traffic area
C35/45
Compressive strength
30 kg/m2
Fibre content
DG12,5/0,5
Fibre type
Safe transport on a strong foundation
Container Terminal Maasvlakte, Rotterdam (NL)
The Container Terminal Maasvlakte in Rotterdam (NL) has an area of 60,000 m² and features
a 4 x 4 m foundation with 30 cm thick concrete slabs.  We supplied 30 kg/m³ of type DG 12.5/0.5 steel fibres for building this concrete surface. The traffic area achieves compressive strength of C35/45 – official confirmation of its exceptional durability and impact-resistance. The high weight loads from the containers that are loaded in the industrial and port areas are now no longer a problem for the road surface.
Author // Stephan Müller
Container Terminal Maasvlakte
A traffic area suited for even the heaviest loads.

A61 – The secret’s in the mix

Homogeneous road surface without any fibre balls improves safety on the A61 motorway between Bergheim and Kerpen.
Would you like to learn more about how steel fibre reinforced concrete is used in road building?
Ask our experts for advice or take a look at the following article from the 11/2011 issue of BETON.
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