The formula above does not apply infinitely. CIRIA 108 imposes two absolute limits:
To understand the importance of Report 108, one must first understand the problem it solved. Before 1985, formwork designers often relied on simplistic assumptions. ciria report 108 concrete pressure on formwork
With the introduction of the Eurocode (BS EN 12812) for falsework, there is a conflict in methodology. EN 12812 uses a different coefficient approach ($H_max$). However, many practitioners still prefer CIRIA R108 because EN 12812 can be complex to navigate for simple wall pours, and CIRIA is viewed as having a "calibrated" safety record in the UK industry. The formula above does not apply infinitely
Fresh out of university, we all learned the classic formula: Pressure = Density x Height ( ( p = \rho gh ) ). But anyone who has watched a formwork blowout knows that fresh concrete isn’t a fluid. With the introduction of the Eurocode (BS EN