ABSTRACT
Commercially available column moulds Simple cylindrical column moulds are commercially available as the “FastTube” – a product manufactured by Fab-Form Industries.1 Figures 8.2 and 8.5 show Fast-Tube moulds filled with concrete. The assembly of the formwork is shown in Figures 8.4a, b, and c. This product has a pre-fabricated, heat-welded edge seam forming a flat tab that is stapled to a wooden strong-back (Figure 8.4b) (for strong-backs see Chapter 6, p. 111). The strong-back, in this case, is a pair of “2 x 4”s that sandwich, and clamp, the formwork tab between them, using nails or screws for the temporary connection (Figure 8.4c).
