For information on falsework (to support the concrete until it has achieved sufficient strength) for in situ construction see main entry Falsework and subsequent sub-headings.
For information on formwork for in situ construction see main category Formwork and subsequent sub-headings.

Slipforming is a technique for rapid construction of tall concrete structures, it involves the extrusion of the concrete in situ rather than casting in short lifts. It offers the advantages of speed, ability to produce a monolithic structure, and economy of operation. The disadvantages are the high cost of the initial set-up and the need for specialist expertise and equipment. The dimensional accuracy that can be achieved may also be less than by conventional techniques.