Decay of Roman and repair mortars in mosaics from Italica, Spain
1994
Puertas, Francisca | Blanco-Varela, María Teresa | Palomo, Ángel | Ortega Calvo, J. J. | Ariño, Xavier | Sáiz-Jiménez, Cesáreo
A chemical, physical, mineralogical and mechanical characterization has been made of different bedding and repair mortars in mosaics from the Roman town of Italica, Spain. The main cause of deterioration in the superficial mortars is biological attack. In the repair mortars, situated at the deepest levels, all of which are based on Portland cement, the main causes of deterioration are lixiviation, corrosion of metal reinforcements in the concrete, and crystallization of salts in the cement.
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