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3 May 2010 Nondestructive testing of plastered mosaics with the use of active thermography approaches
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In this work, different mosaics covered with various plasters (of thickness and compositions) were evaluated in lab by means of active long wave and mid wave thermography approaches, with the intention of detecting the tesserae beneath the plastered surface. Thermal images as well as thermal contrast curves between plastered surfaces and plastered mosaics were recorded. Special considerations concerning the applicability and accuracy of the used approaches for this specific application are presented. Results from the assessment are presented and discussed, indicating that images seeing through the mortar-plaster on plastered mosaic surfaces can be obtained using active thermography approaches.
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Eleni Cheilakou, Nico P. Avdelidis, Clemente Ibarra-Castanedo, Maria Koui, Abdel Hakim Bendada, and Xavier P. Maldague "Nondestructive testing of plastered mosaics with the use of active thermography approaches", Proc. SPIE 7661, Thermosense XXXII, 76610F (3 May 2010);

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