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Elaich module 5 exercise 5.c advanced
 

Elaich module 5 exercise 5.c advanced

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ELAICH - Educational Linkage Approach in Cultural Heritage.

ELAICH - Educational Linkage Approach in Cultural Heritage.
For more information and presentations, please visit: http://elaich.technion.ac.il/

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    Elaich module 5 exercise 5.c advanced Elaich module 5 exercise 5.c advanced Document Transcript

    • Educational Linkage Approach In Cultural HeritageE x e r c i s e 5.CAdvanced CourseModule 5 Monitoring & MaintenanceTopic 5.1 To Monitor or not to Monitor, that is the question! Exercise 5.C Hands on materials: Macro & Micro-world observations Authors: Prof. Guido Biscontin, Dr. Francesca Caterina Izzo, Prof. Elisabetta Zendri, Ms. Laura Falchi- Ca’ Foscari University of Venice Objective This activity is meant to help students to notice the differences between “macro and micro” observations of building materials and understand how they can change after conservative treatments. In Conservation Science Laboratories, the first analysis, which is performed to monitor the state of health of Cultural Heritage, is the observation with naked-eye and by using microscopes. Introduction “Monitoring means determination of the most relevant indexes for the correct evaluation of the use of innovative methodologies or new products”. Simple instruments, e.g. optical microscopes, could help the Conservator Scientist to investigate the appearance of the materials obtaining a piece of information in the understanding and the reconstruction of the materials state of health. But the micro-world can be very different from the macro-world, and the observations of micro-world can lead to amazing discoveries! Guidelines Exercise 5.C should be done after the Topic 5.1 of the Module 5 “Monitoring and Maintenance”. Duration: 30 minutes Type of activity: This activity can be done also as homework, but it is important to discuss the results and the observations done at home in the classroom under the guidance of the teacher. Before the activity: Prepare copies of the exercise with the list of question and of the photos that the students should observe. 1
    • Educational Linkage Approach In Cultural HeritageE x e r c i s e 5.C Expected results The students should gain a better knowledge of how a building and-or historical material can differently appear going from the normal observations (by naked-eye) to the micro observations (by microscopes). Exercise 5.C part 1. Link the following macro image of Lecce stone (a kind of limestone) with one of the correspondent micro images displayed in figures A, B and C. Which is the correct one? Surface of Lecce stone A B C 2
    • Educational Linkage Approach In Cultural HeritageE x e r c i s e 5.C Exercise 5.C part 2. Have a look of the effects of conservative treatments on a brick (A), gypsum (B) and a mortar (C). Choose one of the examples and then answer the following questions. (A) Brick: consolidation treatment with a silicate Before treatment After treatment (B) Gypsum: consolidation treatment with a silicate Before treatment After treatment 3
    • Educational Linkage Approach In Cultural HeritageE x e r c i s e 5.C (C) Natural hydraulic mortar: consolidation treatment with an acrylic resin Before treatment After treatment 1. Give a brief description of the two surfaces, before and after the treatment. 2. What do you notice? How is the appearance of the surfaces? 3. Has the colour changed after the treatment? In your opinion, is it acceptable? 4