Ciria Report 108 Concrete Pressure On Formwork Online

The core of the report is the design pressure formula. For internal vibration (the standard method of compaction), the design pressure $P_max$ is given by:

This article provides a comprehensive breakdown of CIRIA Report 108—its history, key formulas, practical applications, and why it remains indispensable for safety and efficiency in concrete placement. ciria report 108 concrete pressure on formwork

Nearly 40 years after its publication, remains the gold standard for rational formwork design. It shifted the industry from fearful over-design to intelligent, risk-aware engineering. The core of the report is the design pressure formula

CIRIA Report 108: Concrete Pressure on Formwork (1985) is a seminal industry standard used to calculate the lateral forces exerted by fresh concrete on vertical formwork. It replaced the older CIRIA Report 1 (1965) to better account for modern developments like chemical admixtures and blended cements. Core Calculation Methodology It shifted the industry from fearful over-design to