What are the benefits of a post-tensioned tank?
Concrete is a material with high compressive strength but relatively low tensile strength. Through the principles of structural design, the level of post-tensioning applied to a structural component can reduce or eliminate the tensile stresses in the concrete depending on code requirements and the desires of the structural design engineer. Post-tensioning allows for large concrete placements without construction, expansion, or control joints. The floor and roofs slabs are each cast in single placements eliminating the maintenance and leakage associated with construction joints. Wall segments are cast full-height in lengths of approximately 80 ft. with no horizontal construction joints. The ultimate stress of the prestressing strands is 270 ksi compared to 60 ksi yield stress for mild reinforcement allowing for greatly reduced reinforcement ratios. Reinforcement congestion is eliminated simplifying concrete consolidation. Post-tensioning allows for thinner members resulting in reduced m
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