Formwork Pressure

Lateral form pressure (ACI 347 short form) capped at wet head.

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Formula and source

ACI 347 short-form pressure: P = C_w × (150 + 9000 × R / T) capped at the wet-head pressure ρgh. R is pour rate (ft/hr), T is concrete temperature (°F), C_w is unit-weight coefficient.

ACI 347R-14 (Guide to Formwork for Concrete) by name.

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