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Structural Concrete Frames 379
Edge protection
Concrete floor
Table formwork linked
together to provide
continuous formwork
Concrete column
Figure 6.28 Table formwork system.
Photograph 6.5 Table formwork.
compressed air hose is usually used to blow away debris and dust (the reinforcement usually
prevents brushes from being used effectively). To make striking the formwork easier and
to reduce blowholes, the surface of the form should be coated with a release agent. Release
agents are either chemical based, emulsion (mould cream) or neat oil with surfactant.
Mould cream should not be used on steel forms, and oil can lead to staining of the concrete
surface; therefore, a chemical release agent is used. Chemical agents help to produce highquality
finishes, are easily applied and are the least messy of the release agents.