Research Report 254 Behaviour of permanent form work

Publication Year

1990

Document Status

Current

Abstract

Describes an investigation and assessment of the four main types of permanent formwork. Steel formwork and 'Omnia' precast concrete planks were load tested in the 1970s at Imperial College; glass reinforced cement (GRC) and glass reinforced plastic (GRP) panels were load tested at TRRL in the 1980s. All types were inspected on bridges built around 10 to 20 years ago. The results of these investigations suggest that profiled steel permanent formwork is generally strong and durable but is susceptible to corrosion at cut edges. Panels with shear connectors indented in the troughs are not recommended.

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