Total Area: 3700m2
H3 Construct was appointed to carry out major refurbishment works at Q-Park The Light, a busy underground car park located in the centre of Leeds. The works were delivered over an 8-week period and were carefully planned to maintain car park operations throughout.
The scope of the project included over 150 m² of concrete repairs to the deck and soffit areas, the installation of galvanic anodes (C-Puck) for long-term corrosion control, and the full recoating of approximately 3,700 m² of the parking deck using the BASF Masterseal traffic-grade system. All areas were prepared via captive shot blasting, ensuring a clean, profiled substrate ready for primer and coating application.
One of the main challenges was the car park’s location and usage—it is fully underground and in constant use. A key requirement was to maintain a live traffic route throughout the works to provide continuous access to the lower levels. Our site team worked closely with Q-Park’s operations staff to phase the works in a way that allowed safe contractor access while keeping customer disruption to an absolute minimum.
The concrete repairs were carried out using rapid-cure, high-strength mortars to ensure fast turnaround and early overcoating. Galvanic C-Puck anodes were installed within the repair areas and to surrounding zones to mitigate further corrosion risk to the reinforcing steel. These were installed and tested in accordance with the manufacturer’s requirements and recorded for client handover.
The coating works included the application of a full BASF Masterseal system designed for traffic-grade use, offering chemical resistance, slip resistance, and durability in high-wear areas. The system was applied in multiple coats with strict environmental controls, ensuring cure times and bond strength met specification.
Close coordination and sequencing were essential to maintaining both safety and programme. The car park remained operational for the entire duration of the works, with clearly defined traffic routes, barriers, and signage used throughout. Regular updates were provided to Q-Park management and daily planning ensured all critical areas were handed back on time.
The project was delivered on schedule, to specification, and with positive feedback from the client and site users. The finished surface provides improved durability, a cleaner visual appearance, and long-term protection of the structure.
The Incipient Anode Effect is a term commonly used in the field of corrosion protection, specifically related to reinforced concrete structures.