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Elaich module 2 exercise 2.8.b - Study of the hygrometric behavior of building materials with infrared thermography
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Elaich module 2 exercise 2.8.b - Study of the hygrometric behavior of building materials with infrared thermography

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ELAICH - Educational Linkage Approach in Cultural Heritage. …

ELAICH - Educational Linkage Approach in Cultural Heritage.
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Study of the hygrometric behavior of building materials with infrared thermography

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  • 1. Educational Linkage Approach In Cultural HeritageEducational Toolkit Exercises Basic Course Cours Module 2 Knowing the built heritage Study of the hygrometric behavior of building Exercise 2 .B materials with infrared thermographyProf. Antonia Moropoulou - NTUA – National Technical University of Athens
  • 2. Educational Linkage Approach In Cultural Heritage Copyright ©ELAICH Beneficiaries 2009-2012 This material is an integral part of the “ELAICH – educational toolkit” and developed as part of the project ELAICH – Educational Linkage Approach in Cultural Heritage within the framework of EuroMed Cultural Heritage 4 Programme under grant agreement ENPI 150583. All rights reserved to the ELAICH Beneficiaries. This material, in its entirety only, may be used in "fair use" only as part of the ELAICH – educational toolkit for the educational purposes by non-profit educational establishments or in self-education, by any means at all times and on any downloads, copies and or, adaptations, clearly indicating “©ELAICH Beneficiaries 2009-2011” and making reference to these terms. Use of the material amounting to a distortion or mutilation of the material or is otherwise prejudicial to the honor or reputation of ELAICH Beneficiaries 2009-2011 is forbidden. Use of parts of the material is strictly forbidden. No part of this material may be: (1) used other than intended (2) copied, reproduced or distributed in any physical or electronic form (3) reproduced in any publication of any kind (4) used as part of any other teaching material in any framework; unless prior written permission of the ELAICH Beneficiaries has been obtained. Disclaimer This document has been produced with the financial assistance of the European Union. The contents of this document are the sole responsibility of the ELAICH Consortium and can under no circumstances be regarded as reflecting the position of the European Union.Prof. Antonia Moropoulou - NTUA – National Technical University of Athens
  • 3. The porous structure ofmaterials and the study of their compatibility in relation to water and soluble salts transport phenomena Prof. Antonia Moropoulou 3
  • 4. STUDY OF THE HYGROMETRIC BEHAVIOR OF BUILDING MATERIALSWITH INFRARED THERMOGRAPHY (IRT) Prof. Antonia Moropoulou 4
  • 5. Rising damp experiments Step 1. Dry stone samples at oven Air drying T, RH, V at 60oC until weight is stabilized Infrared camera Step 2. Lay samples over damp absorbing paper so that due to capillary action humidity rises Step 3. Weigh sample at end of each time sector and recording of the surfaceCapillary rise of water T5 temperature (T1-T5) of T4 the surface with IRT T3 T2 Step 4. Repeat steps 2-3 T1 Prof. Antonia Moropoulou 5
  • 6. Rising damp results Stone – Rethymno whiteAbsorbed humidity (%) SRW 0,1 Περιεχόµενη υγρασία (%) 0,09 T=45oC T = 21oC (t=0) (t=30s) 0,08 T=35oC 0,07 T=21oC 0,06 0,05 0,04 0,03 0,02 0,01 0 0 50 100 150 Time (s) Χρόνος (sec) T = 35oC (t=0) (t=30s) Water absorption vs time for three different environment temperatures Moropoulou A., Cheilakou E. 2006 T = 45oC (t=0) (t=30s) Prof. Antonia Moropoulou 6
  • 7. T1T2 Stone – Rethymno white SRWΤ3 50 Θερµοκρασία επιφάνειαςΤ4 45 Surface TemperatureΤ5 40 T = 45oC 35 T = 35oC 30 25 20 T = 21oC 15 0 20 40 60 Χρόνος(s) Time (sec) T5 T4 Variation of surface temperature of the T3 stone sample as a function of time during the T2 rising damp experiment for three T1 environment temperatures Moropoulou A., Cheilakou E. 2006 Prof. Antonia Moropoulou 7