Concrete usually takes about a month to achieve its designed strength after casting. This is why the complete support cannot usually be removed until about half this time has passed (depending on temperature and cube strenght tests).

However, early striking is a technique which involves the form work being removed 3 or 4 days after pouring, leaving only the supporting scaffolding or drops until the concrete has the strength to support itself.

When you consider the high cost of form work these days, it is easy to see how traditional form work which involves leaving the full structure in place for two weeks is now outdated. With the accelerated cycle the new system gives the same equipment can be used sooner, thus being more economical. In other parts of the world where labour and equipment are expensive, this economical, safe and efficient system has been in operation for over fifteen years.

Whether the early striking technique is followed or not, the procedure for dismantling is the same.

Decking beams and infill beams can be dismantled by striking the drophead wedge. This striking causes the beams to drop only about 115mm, which gives enough clearance for removing the infill beams.

After striking the drophead wedge the decking and infill beams can be taken away as the concrete soffit is supported and left untouched during the curing period. The beams can then be re-used for another concrete structure, needing only another set of supporting components.

Complete safety in the dismmantling procedure is ensured because decking beams and infill beams cannot fall because after striking must be removed manually.