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One of the most important concepts in ACI 350.3-06 is the division of the liquid‑induced seismic forces into two components: and convective (sloshing). This separation is based on the hydrodynamic model developed by G.W. Housner and later refined by researchers such as Veletsos and Shivakumar.

ACI 350.3-06 provides a method to determine the ( R ) for concrete structures exposed to certain aggressive wastewater environments. It addresses the additional strength or durability considerations needed for tanks, basins, and other environmental engineering concrete structures that may undergo chemical or biological attack.