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Following a concrete condition investigation by Ram Services technical staff, client United Utilities instructed Ram Services to remove one of sixteen BAFF Cell filter floor slabs at Liverpool WwTW. With the floor slab measuring 15m x 10m x 150mm thick, with associated support columns and beams, some 35m3 of heavily reinforced precast and insitu concrete needed to be broken up and removed. The configuration of the structure was such that all debris had to be passed through a single 600mm diameter man way. During a previous similar exercise, the work was undertaken using hand held breakers, requiring some 10 men and several weeks to complete. Using the Diamond Division’s Brokk 90 robotic demolition rig, four operatives, and a series of electrically powered conveyors, Ram Services completed the work in just 20 days, leaving the BAFF Cell clear for a new floor to be constructed by others. Main contractor at the Sandon Dock site - Birse Water |
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