Note: This formula has upper and lower limits. P_max should not exceed the full hydrostatic head (ρgh) nor drop below a recommended minimum of about 25 kN/m² for normal pours.
To safely apply CIRIA 108 principles on site, construction teams should adhere to the following guidelines: ciria report 108 concrete pressure on formwork
Never exceed the maximum vertical rise rate specified by the temporary works designer. Use a dipstick or laser measure to check the rise over time. Note: This formula has upper and lower limits
$$P = D \left[ C_1 \sqrtR + C_2 K \sqrtH \right]$$ ciria report 108 concrete pressure on formwork