Author(s)

C. Sabbiom, G. Zappia, G. Gobbi & M.G. Pauif

Abstract

Deterioration of ancient and modern buildings materials due to environmental factors C. Sabbiom," G. Zappia,^ G. Gobbi^ M.G. Pauif " 7W. F/^BAT - CA^A, Bo/op^a, 7W?/ ^ Dip. Scienze dei Materiali e della Terra, Univ. Ancona, Italy ABSTRACT Simulations of environmental damage processes were performed in the labora- tory. Samples of carbonate stones and mortars were exposed at 25 °C tempera- ture, 100% relative humidity, 3 ppm SC^ concentration, using different types of carbonaceous particles. The exposed samples were analysed by x-ray diffrac- tion (XRD) and infrared spectroscopy (FTIR) to identify the main chemical species and by ionic chromatography to quantify SO^ and SOg concentrations. INTRODUCTION The effects of the deposition of atmospheric gas and aerosol on building materials constitute one of the main damage mechanisms affecting the cultural heritage. The study of environmental damage on stones, mortars and concretes is of fundamental importance in both the pres

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