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Originally constructed in 1989 as a rigid Pavement Quality Concrete (PQC), Runway 10/28 was overlaid in 2010 with a Thin Porous Friction Course (TPFC) to provide improved friction. Studies demonstrated that the runway did not have sufficient structural strength for the projected aircraft movements over the next 15–20 years, and therefore a rehabilitation of the runway pavement was required. The project scope also included the rehabilitation of taxiways, new AGL system and substation plus upgrading airfield signage.
Runway 10/28 Rehabilitation
Lagan/Clare Construction JV
- Airside planning
- Airfield pavement design
- Airfield Ground Lighting (AGL) design
As all the construction work was undertaken during night-time, our design team utilised buildability lessons learnt from previous schemes to reduce risk and meet programme constraints. Throughout the construction period, we provided a Designer Site Representative (DSR) to assist with construction related issues and a point of contact between our design team and JV Contractor. This assisted with the flow of design information and avoided any delays to the construction process.
In relation to reflective cracking, using our knowledge from the Manchester Airport Runway 2 project, our design team reviewed several design options. This concluded that a compliant design could be provided through extensive computer modelling incorporating a high-grade polymer modified bitumen in the base course and a high-grade asphalt reinforcement at the existing concrete/new asphalt base course interface. To assist with the pavement design, the design team undertook a number of visual inspections and non destructive testing of the runway and taxiway surfaces.