PROJECTS
Applied solutions
CorrPRE has delivered over 400 cathodic protection projects worldwide. From bridges and marine infrastructure to industrial sites and parking structures, our systems are engineered to address complex corrosion challenges with long-term reliability.
Below is a selection of our work. Each case demonstrates how tailored electrochemical solutions have extended service life, improved structural integrity and reduced maintenance in demanding environments.
Contern, Luxembourg – Multi-storey car park
Galvanic cathodic protection based on our Zinc Layer Anode (ZLA®) system was installed by 4MLux on a multi-storey car park structure in Contern, Luxembourg, to protect the soffits of prestressed hollow-core concrete slabs affected by chloride-induced corrosion. The project was completed with an iGAL remote monitoring system.
Related paper: Cathodic Protection of Precast, Prestressed Multistory Carpark Slabs, using a Surface Applied Galvanic Zinc Layer Anode
Italy – Viaduct Parchi
Installation of our galvanic ZLA® (Zinc Layer Anode) on the soffit of a highway in Italy. The joints are always a critical problem as these may leak overtime and cause corrosion of the steel in that area.
Related paper (IT): La manutenzione dei Giunti del Viadotto dei Parchi – Tangenziale Est di Milano
Nijmegen, The Netherlands – Neerbossche bridge
Two lightweight concrete sections in the prestressed box girders of the Neerbossche Bridge in Nijmegen were equipped with a cathodic protection system for the reinforcing steel, using galvanic zinc anodes (ZLA®) installed on the underside of the bridge.
Italy – The Brennero Austrada
CorrPRE Engineering carried out inspections for Autostrada del Brennero on the bridge decks of the “Colle del Isarco” structure. The investigation focused on the condition of pre-stressed tendons beneath the asphalt layer, with particular attention to high-risk tension zones. In total, 8,000 m² across two bridge decks were inspected using non-destructive methods, including electromagnetic measurements and potential mapping. Additional destructive analysis of samples, including metallurgical analysis and chloride content analysis, was carried out afterwards to investigate the causes of possible deterioration.
Related paper (DE): Korrosionsuntersuchung der Brückenfahrbahn „Viadotto Colle Isarco“ auf der Brennerautobahn
The Netherlands – Viaduct N278
Chloride ingress had occurred as a result of leaking expansion joints. ZLA® (Zinc Layer Anode) was then applied as a galvanic cathodic protection system to suppress reinforcement corrosion in the concrete columns and beams of the viaduct. The zinc anodes polarise the reinforcing steel, thereby minimising corrosion activity and providing a uniform potential distribution over the reinforcement.
The Netherlands – Viaduct A6, Naarden
As part of the SAAone project, impressed current cathodic protection was installed on the reinforced concrete abutments and central median piers. This 50-year-old Rijkswaterstaat structure on the A6 near Naarden had been affected by extensive reinforcement corrosion and concrete damage due to de-icing salts. CorrAnodes and SiliGrout were applied in the most severely deteriorated areas, including the prestressed cross beams at the abutments and the central piers. Custom-made 90 cm anodes were installed using our acid-resistant SiliGrout injection mortar.
One of the main technical challenges was that the reinforcement to be protected extended through the full depth of the cross beams, approximately 95 cm, while the existing prestressing steel had to remain fully unaffected during installation and throughout the service life of the system. More than 250 holes, each 90 cm deep, were drilled without striking the reinforcement, in particular the prestressing steel. The central median piers were protected with an anode system based on a conductive coating, applied to the lower 2 metres of the concrete surface.
Contractor: Vogel KB
Amstelveen, The Netherlands – Flat
ZLA® (Zinc Layer Anode) was installed on the edge faces of the prefabricated balcony slab elements of the Seineflat as part of a cathodic protection system. The system consists of a zinc foil combined with a specially formulated gel. After installation, a protective coating system was applied, comprising an epoxy-based primer broadcast with silver sand while still wet, followed by a heavily textured layer of Alphacoat Superquartz and finished with Alpha Topcoat.
Brussels, Belgium – Highway E19
Installation of ZLA® on all the highway columns.
Italy – Building Banca di Napoli
Façade restauration of the “Banca di Napoli” at Teramo, Italy. Application of ZLA® and RollAnodes on a historical building of over 100 years with old window casings. The casings were precasted and exists of a mixture of cement and fine marble aggregate with loose steel bars. The RollAnodes were custom tailored for the client due to the esthetical requirements.
Lankawi Island, Malaysia – Pier
Installation of ZLA® (Zinc Layer Anode) on bottom side of a pier in Malaysia.
