RPC designed, manufactured, delivered and installed this 20m self-supporting GRP tank cover for Icon Water’s upgrade of the Lower Molonglo Wastewater Treatment Plant (WWTP) in the ACT. The cover is self-supporting and is only perimeter bolted meaning no work is required above the open tank as supporting beams are not required.
Installation of the cover is fast and efficient. RPC’s crew mobilised and assembled the cover at ground level by bolting the segments together. The cover was then lifted in one piece on to the top of the tank and the perimeter bolted down with a gasket seal to ensure an air-tight finish.
With an asset life of 25-years+, a GRP solution was selected because it is corrosion/chemical resistant, provides extraordinary weight-to-strength ratio, is low maintenance, fatigue resistant and fire retardant.
Watch the time-lapse video of the clarifier cover installation
