Concrete Water Tower
ACOTHANE CASE STUDY
Concrete Water Tower
A full internal refurbishment was carried out to the walls, floor and shaft of the high level tank in this concrete water tower, in 2017.
After removal of the existing failed asphalt render system, all internal concrete surfaces and pipework were grit blasted to remove all traces of the remaining bitumen primer.
All concrete surface were then re-levelled using a cementitious fairing coat, and all expansion joints were sealed using a flexible overbanding system.
After cure of the cementitious render, heating and de-humidification equipment was installed to ensure that the correct application conditions were achieved.
Acothane DW solvent free polyurethane coating system was chosen as the new waterproof lining material.
With its regulation 31 approval from the drinking water inspectorate, tough polyurethane finish with a degree of flexibility and 7 day cure, the system was hand applied to all walls, floor , columns and shaft.
Acothane LV sealer was applied to all surfaces followed by two full coats of Acothane DW to achieve a minimum final thickness of 1mm.
