Author(s)

A.L. Velosa & P. Cachim

Abstract

Interventions in historic buildings and structures may vary with the degree of decay they present. Due to the fact that Cruzeiro de Sangalhos had suffered considerable damage and varied interventions during the ages, the method adopted for the developed action was of respect for the remaining original elements and of ensuring compatibility of added structures and their differentiation from the original monument. The rehabilitation process is described, mainly in what concerns the formulation of mortars and their application. New mortars had to be used in column joints and in the dome, which needed total rebuilding. For this purpose pre-existant mortars were studied, several formulations were tested for their main mechanical, physical and chemical characteristics and the structural analysis of the dome with the chosen mortar was executed using finite element soft

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