Ciria Report 108 Concrete Pressure On Formwork ^hot^ Page

Pressure characteristics and influencing factors

Concrete pressure on formwork refers to the lateral pressure exerted by the concrete on the formwork as it is placed and compacted. This pressure can vary depending on several factors, including: ciria report 108 concrete pressure on formwork

Use conservative hydrostatic pressure for high-risk conditions: If placing rate is fast, slump is high, or vibration is heavy, assume near-hydrostatic pressures for design until concrete has sufficiently stiffened. Despite its age, it remains a cornerstone document

CIRIA R108 was a landmark publication because it moved away from purely prescriptive tables and provided a rational, semi-empirical method for calculating pressure based on the specific properties of the pour. Despite its age, it remains a cornerstone document referenced in the Temporary Works Forum (TWf) guidance and is often preferred over the Eurocode methods for its clarity. Despite its age

The magic of CIRIA 108 lies in accurately capturing and Setting Time (E) . Misjudging these is the primary cause of formwork failure.