Resumen de Diagnosis of surface damage on cement built heritage: The Centennial Hall, Poland
Cristina Sabbioni, I. Ozga, Alessandra Bonazza
The present work focuses on the diagnosis of surface damage on the Centennial Hall (Wroclaw, Poland) from 1913, listed by UNESCO as one of the most important achievements of 20thcentury architecture, a modern concrete building constructed in Portland cement, located in a urban area in Poland. For this purpose, samples of damage layers and underlying building materials were collected from different levels and parts of the building in washed out, sheltered and partly sheltered areas. The characterization of collected crust and cement mortar samples has been performed using a range of analytical methods: optical and scanning electron microscopy, x-ray diffraction, differential and gravimetric thermal analysis, ion chromatography, and CHNSO elemental analysis. The preliminary results achieved are presented and discussed, particularly with regard to the impact of atmospheric gases and particles on cementitious material.
