Residual safety for flexural bending of slabs with corrosion in the joists

What is it about?

A large number of slabs with severe corrosion problems at the precast joists have appeared in Spain, often increased by the use of aluminous cement. The purpose of this paper is to evaluate the residual safety for the bending mechanisms in the most common cases of damaged slabs, to decide the magnitude of the needed intervention. The damaged slabs have been evaluated as a part of an entire building, since the boundary conditions are essential for obtaining actual behavior, taking into account the different phases of the construction process and deterioration over time. A major cracking in the constructive elements are not frequently observed in inspections, and it is found that there is a sufficient residual safety to undertake the rehabilitation works without exceptional measures.

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