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Big bridge maintenance
Technobeton also used its expertise at the Utrechtsebaan in The Hague.

Major bridge maintenance

Concrete specialist tests latest generation of joint crossings

The multi-year maintenance of 360 artworks in the province of Limburg, the installation of joint transitions for project IJsselbridges and the maintenance of all artworks within the Integral Major Maintenance region East. Three major current projects in which Technobeton is deploying its specialty: concrete repair and renovation and the installation of joint crossings. Works Manager Sjoerd van Geene tells us more about the latest generation of joint bridges and how the sustainable working method is being applied for the first time in the maintenance project in Limburg.

The Netherlands has countless small and large bridges, viaducts, roads, railroad crossings and concrete structures. Exactly the works of art for which the people of Technobeton apply their craftsmanship and expertise. "On average we do 200 projects on an annual basis, including 10 very large projects such as the multi-year maintenance contracts of the Department of Public Works," Van Geene says. "In principle, we work throughout the country, but our focus is on Limburg, Brabant and the Randstad." 

A fine and current example of a major maintenance contract commissioned by BAM for Rijkswaterstaat is the Integral Major Maintenance East Region (IGO Oost). In the context of future-proof highways, major maintenance is being carried out on all national highways in the eastern Netherlands, including major arteries such as the A50, A15, A12, N35, N18 and N46. "On the entire A50 route, we provide maintenance from A to Z of all the engineering structures. That means: renovation, repair of all concrete structures except the asphalt."

Together, Technobeton and Mageba have developed the TENSA GRIP TB R LS, an innovative low-noise joint crossing construction.

Sustainable approach in Limburg

A similar project in terms of size, is the maintenance of some 360 structures in the province of Limburg. Here Technobeton is responsible for the maintenance of bridges, viaducts and culverts. It is doing this in partnership with Dura Vermeer. What is special about this project is the Plan of Approach. "Previously, we first carried out an inspection, a recommendation rolled out from that and based on the final agreements we planned the work. Now we do it differently. Beforehand, we agreed with Dura Vermeer and the Department of Public Works on which damages had to be addressed anyway. Simultaneously with the execution of these smaller repair works, we inspect any larger damage. We do advise on the latter prior to the repair. This way of working is much more efficient. It saves time and therefore money. We also do not have to return for most of the repairs, which saves on transport. Moreover, we do the small-scale work including inspection with electric transport and tools. So it's also a lot more sustainable."

Joint transitions project IJssel bridges

In the other current project, the A12 IJssel bridges, Technobeton is involved in replacing the joint crossings. The A12 IJssel bridges east of Arnhem handle nearly 125,000 vehicles daily, including much heavy freight traffic. The A12 IJssel bridges consist of one concrete bridge for traffic heading west and two steel bridges. Precisely because of the heavy freight traffic, these are specialized multiple-joint bridges that are larger and heavier than standard jointing bridges. The heavier joint crossings are due to the fact that they are larger bridges that shrink and expand more so that the joint dilations are larger. In addition, Technobeton performs concrete repair work on the undersides of the bridges. 

Joint transitions are an important specialty of Technobeton. For this Technobeton has an exclusive partnership with Mageba for the Dutch market. Mageba is a global manufacturer of very high-quality expansion joints, overlays, structural bearings, seismic protection and health monitoring systems. Together, the companies have developed, among other things, the TENSA GRIP TB R LS, an innovative low-noise joint transition construction. Characteristic of the TENSA GRIP TB R LS joint transition is its long service life and relatively simple installation. 

New generation of joint crossings

However, this latest generation of joint crossings will not be long in coming, because in cooperation with the Department of Public Works, Technobeton is now in the final stages of approval. "The new generation of joint crossings is still made of steel, but it is lighter, smaller and also more durable. These joint crossings are even easier to (de)assemble and thus quick and easy to replace."

Bridges, viaducts, roads, railroad crossings and concrete structures are the works of art for which the people of Technobeton apply their craftsmanship and expertise.

Rock-solid foundation: professionals

But the main strength of Technobeton is in its people. That's where the knowledge and skill is. Van Geene: "We have real specialists at work with a lot of experience and knowledge of concrete. Not only those who perform the repairs and renovations, but also the concrete maintenance experts who are responsible for the inspections and advice to our clients. They look not only at how to repair the damage, but especially at the cause of the damage, so that measures can be taken for this as well."  

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