scholarly journals In Situ Analysis of Plaster Detachment by Impact Tests

2019 ◽  
Vol 9 (2) ◽  
pp. 258 ◽  
Author(s):  
Alessandro Grazzini
Keyword(s):  
In Situ Analysis ◽  
Experimental Methodology ◽  
Historical Buildings ◽  
Architectural Heritage ◽  
Impact Tests ◽  
Innovative Technique ◽  
Non Destructive

The frescoed surfaces of historical buildings may be subject to detachment due to various causes of deterioration. A new non-destructive experimental methodology is described to assess in situ the safety against plaster detachments from historical wall surfaces. Through small and punctual impacts exerted with a specific hammer on the plastered surface it is possible to evaluate the level of the plaster’s detachment. A case study at Palazzo Birago in Turin (Italy) is described to give an example of the application of this innovative technique on frescoed surfaces of historical vaults. The test allows to evaluate the safety of frescoed decorations without affecting the material consistency or creating damage, therefore, making it very suitable in the field of architectural heritage.

The Contribution of the Turkish Historical Society to the First Stage of the Governmental Program for the Protection of Monuments in Edirne (1933-1941): Preservation Policies and Ideology in the Representation of Architectural Heritage

Belleten ◽  
2012 ◽  
Vol 76 (276) ◽  
pp. 673-690
Author(s):  
Giorgio Gasco
Keyword(s):  
Point Of View ◽  
Visual Narrative ◽  
Ministry Of Education ◽  
Historical Buildings ◽  
Architectural Heritage ◽  
Historical Society ◽  
Emerging Culture ◽  
Historical Heritage ◽  
Scientific Base

The beginning of restoration works on a scientific base in Turkey dates back on 1933 when a specific committee for the protection of monuments (Anıtları Koruma Komisyonu) was officially appointed by the Ministry of Education. The preliminary working phase, carried on under the direction of this committee, was soon distinguished by the clear attempt to visualize the results in order to cast the monuments as national icons. The present paper's aim is to discuss this process of visualization focusing on the case study of a series of works realized in Edime from 1933 to 1944. Apart from the historical value of monuments included in the protection program, the study explores the ideological side of these works stressing their value as a pioneering enterprise of a modem nation that celebrated its emerging culture in the protection and preservation of monuments as a sign of progress and civilization. Edirne's restoration works in fact arouse a great deal of interest in the national press, becoming the best show-case for the effort of the Ministry. By this point of view the study focuses on the key-role played by the Turkish Historical Society in the construction of a visual narrative in the attempt to disseminate the result of these works. In particular the efforts of the Turkish Historical Society in advertising the scheduled interventions found their outlet in the editing of a set of postcards displaying Edirne's historical buildings. The result is a series of powerful images in which a number of buildings are re-casted as the first cultural-historical assets of the Turkish nation. The construction of this visual material was set according to a powerful aesthetic format, clear and instantly recognizable, in order to assure an immediate public reception of the historical heritage of the country. The collection of these images stands as a prime contribution in the construction of the national identity of the country thanks to the production of a collective visual heritage, that, on the ground of an effective popular aesthetics, was able to feature the idea of nation as a landscape of monuments.

scholarly journals Conservation through knowledge: the case study of Parma Botanic Garden

2021 ◽  
Vol 1203 (2) ◽  
pp. 022047
Author(s):  
Lia Ferrari
Keyword(s):  
18Th Century ◽  
Existing Buildings ◽  
Botanic Garden ◽  
Complex Process ◽  
Critical Interpretation ◽  
Object Material ◽  
The University ◽  
Non Destructive

Abstract In the restoration field it is well known that the preservation of cultural heritage stands on a deep comprehension of the architectural object, material expression of a complex system made of cultural, technological, historical, social and economic issues. The knowledge of such meaningful structures requires the identification of both typological features and peculiar characteristics, within an interactive dialogue between contributions from different disciplines. Thus, the study of existing buildings is a complex process that needs to be planned: that means conceived, organized and realized with a critical method. The paper aims to show an example of this approach by presenting the knowledge path followed for the analysis of the Botanic Garden in Parma, Italy. This green area is located in the south of the city and hosts several buildings including the school of botany and the elegant greenhouse, built at the end of the 18th century. Recently, the restoration of the architectural complex has been proposed, aiming at its valorisation. The design process was supported by the studies and the analysis of the existing buildings carried out by the research group in Restoration of the University of Parma. In the specific, the constructive phases have been investigated through historical archive researches whereas the current structural systems have been studied through the geometric survey. Moreover, in-situ inspections allowed to define materials, deepening the knowledge of structural elements and their state of conservation. Finally, the survey of the crack pattern and decay allows to highlight vulnerabilities and mechanisms of collapse. In this way, it has been possible to understand the architectural structure thanks to the comparison between all data collected. On the other hand, in order to respect the historical construction, these analyses are required to reach a satisfying level of detail with the minimum action on the material construction, preferring non-destructive investigations. This approach entails assumptions and uncertainties that could be managed thanks to a critical interpretation of the results. Thus, the case study of Parma Botanic Garden shows the importance of planning the knowledge path with awareness in order to progressively deepen the comprehension with an interactive dialogue between the architectural object and the restoration issue.

Non-destructive in situ analysis of polychromy on ancient Cypriot sculptures

2016 ◽  
Vol 10 (1) ◽  
pp. 83-95 ◽  
Author(s):  
Svetlana Gasanova ◽  
Sandrine Pagès-Camagna ◽  
Maria Andrioti ◽  
Sorin Hermon
Keyword(s):  
In Situ Analysis ◽  
Non Destructive

Health Monitoring of Medieval Masonry Towers by an Acoustic Emission Approach

2019 ◽  
Vol 817 ◽  
pp. 586-593
Author(s):  
Giuseppe Lacidogna ◽  
Gianni Niccolini ◽  
Alberto Carpinteri
Keyword(s):  
Acoustic Emission ◽  
Health Monitoring ◽  
Masonry Wall ◽  
Masonry Buildings ◽  
Earthquake Occurrence ◽  
Structural Element ◽  
Natural Time ◽  
Non Destructive

Non-destructive tests were performed to assess cracking evolution in two medieval masonry buildings, Sineo and Asinelli towers rising respectively in the Cities of Alba and Bologna, in Italy. As regards the case study of Alba, in situ compressive flat-jack tests on small-sized elements of the tower were conducted in conjunction with acoustic emission (AE) monitoring. At the same time, crack patterns taking place in large volumes of the tower were likewise monitored through the AE technique.As for the case study of Bologna, a masonry wall of the Asinelli tower was monitored during a period of intense seismic activity. The observed correlation between the AE activity in the monitored structural element and local earthquakes points out a significant dependence of deterioration processes in the tower on the action of nearby earthquakes.In both cases, the trends of two evolutionary parameters, the b-value and the natural time (NT) variance κ1, were derived from the AE time series to identify the approach of the monitored structures to a critical state in relation to the earthquake occurrence.

Non-Destructive In Situ Analysis of Interface Processes and Thin Film Growth

1996 ◽  
Vol 58 (3-4) ◽  
pp. 227-241 ◽  
Author(s):  
M. Buck ◽  
Ch. Dressler ◽  
M. Grunze ◽  
F. Träger
Keyword(s):  
Thin Film ◽  
Film Growth ◽  
Thin Film Growth ◽  
In Situ Analysis ◽  
Non Destructive

EDXRF Spectrometry and Complementary Non-Destructive Analytical Techniques in the Archaeometric Study of Copper Artefacts

2019 ◽  
Vol 15 (7) ◽  
pp. 776-787 ◽  
Author(s):  
Christos S. Katsifas ◽  
George A. Zachariadis
Keyword(s):  
Analytical Techniques ◽  
Molecular Techniques ◽  
In Situ Analysis ◽  
Related Case ◽  
Analytical Technique ◽  
Non Invasive ◽  
Portable Instruments ◽  
Non Destructive

Background: For more than a decade, Energy Dispersive X-Ray Fluorescence (EDXRF) spectrometry is the primary analytical technique in archaeometric research and especially in the study of ancient copper artefacts. EDXRF has established itself as the fundamental archaeometric analytical technique because of features like: the ability to analyze samples in a non destructive or non invasive way, no requirements for sample preparation, portability, in situ analysis, simultaneous determination of many elements and finally its easy in use. At the same time there is an explosion of related research publications which provide new possibilities to museums and archaeology scientists. On the other hand, due to its limitations it cannot provide information for every analytical question. Objective: The goal of this article is to present an overview of the capabilities of the contemporary EDXRF spectrometry for the study of ancient copper artifacts and the necessity to be implemented, depending on the analytical question, in correlation with complementary analytical techniques which are presented through related case studies. Conclusion: The demand for studying artefacts in situ, the evolution of the instrumentation and the access of more scientists (historians, archaeologists, curators etc.) to archaeometry will maintain EDXRF spectrometry as the central analytical technique. Limitations like inability for light elements detection, penetration depth, low (relatively) sensitivity can be partially overcome with the implementation of other analytical techniques which will provide complementary information. Moreover, progress in non-invasive analysis and new portable instruments combining elemental and molecular techniques expand significantly the capabilities of in situ analysis.

Sign in / Sign up

Export Citation Format

Share Document