PARTICIPACIÓN DE MIEMBROS DEL FICAL EN EL CONGRESO DE FLORENCIA SOBRE MORTEROS ANTIGUOS Y MODERNOS   Como ya hemos publicado, se celebrará en Florencia el Congreso sobre morteros antiguos y modernos, los días 7 y 8 de éste mes de febrero al que asisten miembros del FICAL. Concretamente, del Laboratorio de Materiales de la UPC (Universidad Politécnica de Barcelona) Escuela de Ingenieros de la Edificación, participa la geóloga Antònia Navarro Ezquerra y de la UIB (Universidad de les Illes Balears) departamento de química, Catalina Genestar Julià, Carme Pons Bonafé y Francisca Alba, que presentan una ponencia, de la que a continuación insertamos el abstract, titulada Applications of analytical techniques for the reconstruction of a coastal defence tower. Esta representación significa que empieza a extenderse y a notarse la presencia del FICAL en eventos, tanto en el estado español, como en eventos internacionales, principalmente en el ámbito de la investigación y de la docencia a nivel superior. Ojalá llegue el momento en que pueda decirse lo mismo de otros ámbitos del mundo de la cal, como por ejemplo, los aspectos técnicos y prácticos de su aplicación  en sus múltiples variantes, así como el de la formación. Daremos cuenta, en este mismo espacio, de la crónica y los resultados del Congreso una vez realizado.                                                                                                                                                                        ABSTRACT DE LA PONENCIA Applications of analytical techniques for the reconstruction of a coastal defence tower Catalina Genestar, Carmen Pons and Francisca Alba Department of Chemistry, University of the Balearic Islands, 07122 Palma de Mallorca, Spain Sa Torre Nova is a coastal defence tower located in Capdepera (Mallorca, Spain). This tower was built in 1577 on a site 210 meters above sea level. It remained abandoned  for many years and its deterioration began. Financial aid received through the Spanish Government in 2012 allowed its restoration. In this work, mortars from Sa Torre Nova were characterised using thermal analysis (TG-DTG), X-ray diffractometry (XRD), scanning electron microscopy equipped with an energy dispersive X-ray spectrometer (SEM-EDX), Fourier transform infrared spectroscopy and granulometric analysis. According to the granulometric analysis, the proportion between binder and aggregate was about 1/5. In this sense, the granulometric fraction of particle size <63 mm and <0.125 mm can be considered made basically of binder while the other fractions consist mostly of aggregate. XRD results show that dolomite, calcite, hydromagnesite and gypsum are the main components of the binder whereas dolomite and calcite are the main mineralogical constituent of the aggregate. FTIR confirmed the presence of carbonate and hydroxil groups in the binder and dolomite, in the aggregate. Thermal analysis detects compounds of hydraulic characteristics and allows the identification of the type of mortar. Thus, the high weight loss of structurally bound that occurs between 200 and 600ºC reveals the hydraulic nature of the mortar. Results are consistent with the characteristics of pozzolanic mortars. TG-DTG experiments were also perfomed in CO2 atmosphere with the aim of calculating the amount of hydromagnesite and magnesium carbonate. TG-DTG results were in good agreement with those obtained by SEM-EDX and they allowed to obtain a mortar similar to the original one. The methodology used was suitable for the characterization of the mortars and for the obtention of the mortar formulation. The results have been essential to plan an efficient intervention with compatible restoration materials.