ABSTRACT
ABSTRACT: The region of Aragon is one of the most important centres of Mudejar architecture in Spain. It is characterised by the use of brick masonry with gypsum-lime based mortars-filled joints as the main building materials. Nowadays, these materials are continuously exposed to different causes of deterioration making it necessary to establish a restoration program. The main goal of this paper is to design new gypsum-lime repair mortars compatible with traditional building materials. Compatibility requirements for new repair mortars were defined based on the reproducibility of the original mortar characteristics. As a consequence, mortars were prepared by varying the binder proportions, the type of aggregates and the binder/aggregate ratios and were characterized by means of physicomechanical analysis. Since they were prepared following a systematic procedure and observing standards, the results indicated their suitability to be used in building restoration plans. Knowledge obtained provides practical information to establish a fitting mortar mixture for restoration repairs on Mudejar monuments.
