Diagnosis and Conservation of Stone
Objectives
At the end of this course the student will have acquired knowledge, skills and competences to:
- to know and recognize stone cultural heritage;
- to identify the problems that affect the exposed stone materials;
- to know and be able to apply diagnosys methods;
- to understand the degradation phenomena and the the driving mechanisms;
- to propose conservation solutions to solve problems.
General characterization
Code
7417
Credits
6.0
Responsible teacher
Carlos Manuel Chastre Rodrigues, Nuno Gonçalo Figueiredo de Freitas Leal
Hours
Weekly - 5
Total - Available soon
Teaching language
Português
Prerequisites
Knowledge on rock and stone types, properties and characteristics.
Bibliography
Available soon
Teaching method
Classes will be in Portuguese, except if foreign students are in the class.
Classes will take place in person and online, as recommended by FCT NOVA.
There are laboratory classes and student field work.
Evaluation method
INDIVIDUAL EVALUATION BY MINI TESTS
There will be 3 mini-tests (or short individual oral assessments), each with a value of 10% of the final grade.
EVALUATION BY WORK
Part 1 (20%)
Part 2 (20%)
Part 3 (20%)
Presentation and Discussion of the final work (10%)
In any evaluation moment, students must also take into consideration the provisions of nº3 of article 10º of the ''''''''Evaluation Rules of FCT NOVA'''''''': “When fraud or plagiarism is proven in any of the evaluation elements of a UC, students directly involved are outright disapproved at UC, (…). ”
Subject matter
1. The stone as a building material. History and evolution of stone constructions.
2. Construction systems and structural components.
3. Stone Work: from the quarry to the monument.
4. The stone in sculptures: from conception to the exhibition site.
5. Anomalies and damage in stone buildings. Degradation mechanisms - material and structural.
6. Inspection (and diagnosis) of monuments and sculptures. Registration methods for documentation and analysis. Destructive and non-destructive characterization tests.
7. Materials most widely used in cultural heritage buildings and statuary, in Portugal.
8 . Physical-chemical characteristics of the petreous materials.
9. Degradation conditioning factors: i) original material, weather/climatic conditions; (ii) topography, anthropic action, duration of proceedings. Causes of Degradation: i) water and atmospheric gases; (ii) salts soluble in water, temperature and mechanical action; iii) biological factors.
10. Degradation Mechanisms: i) chemical; ii) physical; iii) Biodeterioration.
11. Degradation and Pathology. Anomalies: Cracks. Deformation. Detachment. Breakdown. Fragmentation. Anomalies: chromatic alteration, deposit, biological colonization. Types of consolidants.
12. Cleaning and treatment of stone
13. Mortars. Constitution and requirements, function of the type of application.
14. Marmorites in wall coverings and floor buildings. Composition, degradation, diagnosis and conservation.
15. Fakestone and artificial stones in old buildings. Diversity, compositions, degradation, diagnosis and conservation
16. Plaster-based coatings on walls and ceilings of old buildings. Smooth, bench-molded and molded coatings in situ. Composition, degradation, diagnosis and conservation.
17. Experimental evaluation of natural and artificial stone in cultural heritage.