Precast concrete tanks save time and money. Precast tanks can store or treat
anything from potable water to hazardous waste to solid storage bins. Storage
capacities can range from 0.4 to 120 megaliters (100,000 to 30 million gallons).
Precast concrete wall elements are usually pretensioned vertically in the plant
and post-tensioned horizontally through ducts cast in the panels. Joint closures
are usually poured concrete on site. This method of sealing the joints allows
the tank to perform (after post-tensioning) as a monolithic structure to resist
hydraulic, temperature and seismic forces.
Off-site fabrication of wall and roof elements (under extremely well controlled
conditions in a CPCI member precast plant) means higher quality and reduced
labour on-site. Virtually any storage structure can be built using precast concrete.
Other parts of a tank structure, such as columns, beams and roof slabs, may
also be precast concrete. Contact CPCI for more information and design recommendations.