Concrete formwork is a broader term for the temporary or permanent frame that holds wet concrete in place until it sets (cures).
Permanent Formwork: This formwork stays in place and becomes an integral part of the final structure, often contributing to insulation or aesthetics. An example is Insulated Concrete Forms (ICFs), which use foam material (such as expanded polystyrene—EPS) into which concrete is poured, providing excellent thermal insulation.
Temporary Formwork: This reusable frame (often made from timber, steel, plywood, or plastic) is removed after the concrete is strong enough to support itself.
