Joint, repair and surface technology
Concrete or asphalt? We ensure a perfect result.
A dedicated department of ÖBA deals with joint, repair and surface technology (JRS). Each year, the department seals joints in road construction which if strung together would result in a stretch of approximately 1,000,000 m, and they replace 10,000 m² of concrete flooring with rapid hardening concrete.
Surface protection layers with EP grip.
In order to increase the grip of a road, we apply a protective layer of epoxy resin (EP) and a special chippings interspersion on its surface. The colour of the special chippings provides for lighter roadways and therefore greater safety in two respects, especially in tunnels.
Roads with epoxy surfaces provide increased safety.
© PORRJoints in asphalt and concrete.
Properly executed joints and high-quality filling material significantly extend the service life of roads and thus contribute to maintaining the value of the infrastructure.
Predetermined breaking points and elastic filling material prevent the formation of cracks in asphalt and concrete.
© PORRJoints sealed with hot sealing compound, cold sealing compound and joint profiles.
For asphalt and concrete surfaces, a joint seal with the correct filling material prevents frost damage and corrosion in concrete surfaces.
Among other things, filling material prevents the ingress of water, and thus frost damage to the roadway.
© PORRGrinding.
In grinding, irregularities are ground out of surfaces or structures are cut into the surface. The process improves the grip of the road surface and at the same time also reduces the noise development.
Precision grinding work ensures that roadways have more grip and are quieter.
© PORRGrooving.
Grooves are cut in the road surface so that surface water will quickly run off from the roadway. Aligned in the direction of travel, they reduce noise development.
Grooves cut in the flow direction facilitate the drainage of surface water from roadways.
© PORRGuiding system for the blind.
On existing surfaces, milled guiding systems for the blind ensure accessibility at railways, on pavements or at other busy pedestrian areas.
The guiding systems for the blind are manufactured according to strict legal standards.
© PORRRenovation of joints.
When the flexible filling material of the joints develops leaks resulting from weather conditions, it must be carefully removed and renewed.
Special equipment allows for efficient and sustainable renovation of joints.
© PORRRenovation of cracks in concrete and asphalt surfaces.
Cracks in concrete and asphalt do not necessarily mean that a road must be rebuilt completely. Often, it can be restructured selectively. This avoids unnecessary costs. For this purpose, the cracks are first cut open cleanly and sealed with joint sealing material; broken concrete slabs are also anchored and dowelled.
The selective repair of cracks means that roads can be renovated economically.
© PORRRenovation of concrete slabs.
Concrete failure is often visible in the form of damage to the edges of concrete slabs. With the use of quick-setting renovation mortar, damaged slabs can be repaired quickly and efficiently.
In order to hinder traffic as little as possible, quick-setting material is used for the renovation of concrete surfaces.
© PORRRenovation of asphalt pits.
During the renovation of asphalt pits, the damaged surface is prised open, cut out and filled with special renovation asphalt.
Rapid hardening concrete in road construction.
Not only asphalt, but also concrete can be quickly processed in road construction. ÖBA uses rapid hardening concrete with curing times ranging from two to six hours, ensuring that concrete surfaces of up to 300 m2 are paved in a single night shift.
The newly paved concrete surface can already be used by 40 tonne trucks after a curing period of just two to six hours.
© PORRSupporting ribs.
The areas of a road where asphalt changes over to concrete slabs, as well as roadway transition structures or expansion joints, are exposed to particular stress. We strengthen these weak areas in the asphalt by using supporting ribs made of a special mortar.
Supporting ribs made from special mortar prevent the edges from breaking in the transition between asphalt and concrete.
© PORRIn-pavement lights.
In-pavement lights or surface lights can be found on runways as well as on taxiways and apron areas of airfields. They are installed virtually at ground-level and are an important guidance aid for pilots when manoeuvring on the ground.
In-pavement lights are used to form navigational lighting systems at airports.
© PORR