Back propping refers to the addition of propping support to reinforce an existing suspended floor system. It provides an alternative load path through the superstructure to ensure the existing or as built permanent elements are not overloaded given the imposed load.

What is propping in formwork?

Propping is a system of structural members used temporarily to support loads during construction. The forces arising from these loads must be fully resolved, using props or columns to provide all the support needed for the work under construction, such as beams, formwork, etc.

What is propped slab?

Slab Propping – slab propping can be used to support a concrete slab during construction, or after completion. ... When slab propping is used to support a slab, the loads are transferred to the slab (or structure below).