Investigating Material Decay of Historic Buildings Using Visual Analytics With Multi‐temporal Infrared Thermographic Data

Danese, Maria; Demšar, Urška; Masini, Nicola; Charlton, Martin

doi:10.1111/j.1475-4754.2009.00485.x

Cited by 31 publications

(19 citation statements)

References 33 publications

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“…In accordance with this norm, the results (see the graph in Figure 2) show the mass absorbed in grams divided by the area of the submerged base of the test area in m 2 , based on the square root of the time in seconds. The graph shows two straight lines that indicate the value of C 1 on the slope of the first stage [3], [3] With m i : mass for moment i (g); m d : dry mass (g); A: area of the submerged base (m 2 ); t i : duration of a moment (s).…”

Section: Rising Dampumentioning

confidence: 99%

“…One sample was from the Godella stone quarry (D a =2.55 g/cm 3 ) and the other sample was from the Bateig quarry (D a =2.21 g/cm 3 ). The test consisted of maintaining the samples for 72 hours at 70±5 °C, as in other procedures for natural stone, and recording with a thermographic camera the heat loss over time (in seconds).…”

Section: Identification Of the Characteristics Of Different Materialsmentioning

confidence: 99%

“…Infrared thermographic imaging was used in previous studies in relation to defects in stone materials and images were interpreted for different points of the walls (3). Areas with thermal discontinuities corresponded to defective points in the material, while points with similar temperatures represent thermal inertia, or the tendency of an element to withstand temperature changes and -depending on the characteristics of the material -dampness and damage (4).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Pathology of Building Materials in Historic Buildings. Relationship Between Laboratory Testing and Infrared Thermography

Lerma¹,

Más²,

Gil³

et al. 2013

Mater. construcc.

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Study of historic buildings requires a pathology analysis of the construction materials used in order to define their conservation state. Usually we can find capillary moisture, salt crystallization or density differences by deterioration. Sometimes this issue is carried out by destructive testing which determine materials' physical and chemical characteristics. However, they are unfavorable regarding the building's integrity, and they are sometimes difficult to implement. This paper presents a technique using infrared thermography to analyze the existing pathology and has the advantage of being able to diagnose inaccessible areas in buildings. The results obtained by this technique have been compared with those obtained in the laboratory, in order to validate this study and thus to extrapolate the methodology to other buildings and materials. RESUMEN: Patología de materiales de construcción en edificios históricos. Relación entre ensayos de laboratorio y termografía infrarroja.El estudio de edificios históricos requiere un análisis de la patología de los materiales de construcción empleados para poder definir su estado de conservación. Habitualmente nos encontramos con humedades por capilaridad, cristalización de sales o diferencias de densidad por deterioro. En ocasiones esto se lleva a cabo mediante ensayos destructivos que nos determinan las características físicas y químicas de los materiales, pero que resultan desfavorables respecto a la integridad del edificio, y en ocasiones resulta complejo llevarlos a cabo. Este trabajo presenta una técnica para analizar la patología existente mediante el empleo de termografía infrarroja con la ventaja de poder diagnosticar zonas de difícil acceso en los edificios. Para validar este estudio se han comparado los resultados obtenidos mediante esta técnica con los alcanzados en el laboratorio. De esta forma podemos extrapolar la metodología empleada a otros edificios y materiales.

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Section: Rising Dampumentioning

confidence: 99%

Section: Identification Of the Characteristics Of Different Materialsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Pathology of Building Materials in Historic Buildings. Relationship Between Laboratory Testing and Infrared Thermography

Lerma¹,

Más²,

Gil³

et al. 2013

Mater. construcc.

View full text Add to dashboard Cite

show abstract

“…Thermography offers answers to several questions [49][50][51][52][53]: a) to examine the history of a building; b) to "read" building features (e.g., to identify non-visible elements hidden under the plaster, to study wall textures, to recognize rear-end collisions of existing openings, mapping of previous restoration interventions); c) to carry out diagnosis and monitoring of the conservation state (e.g., presence of moisture due to infiltration or capillary rising, identification of cracks, detachment of plaster). From a technical point of view, the thermographic analysis allows one to highlight the different temperature responses caused by inequalities in the thermal properties between materials placed within the first few centimeters inside the wall.…”

Section: Analysis Of the Conservation State Of The Villa By Direct Anmentioning

confidence: 99%

Students Meet Cultural Heritage: An Experience within the Framework of the Italian School-Work Alternation (SWA)—From Outcomes to Outlooks

et al. 2019

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Cultural heritage is the creative expression of a people’s presence in the past. It represents a driving force to create, develop, and consolidate the sense of identity, belonging, and citizenship, as well as a means to appreciate the diversity of people and develop a policy for peace and mutual understanding. Furthermore, heritage is a source of economic development and a key factor for sustainable development. The dissemination of such values among people and the transmission of heritage to the future generations entail putting into the field proper actions, from the knowledge to the protection and conservation, and from the enhancement to the fruition and management. Such requirements increasingly involve the use of Information and Communication Technologies (ICTs) that can be considered the paradigm shift to create novel job opportunities in the field of cultural heritage. This paper aims to discuss an experience led by the Institute of Archaeological and Monumental Heritage of the (Italian) National Research Council (IBAM-CNR), with students of a secondary school of the Basilicata region (Southern Italy). The experience developed within the framework of the School-Work Alternation (SWA) (recently renamed “Pathways for Transversal Competences and Orientation” by Italian law), a training modality envisaged in the Italian school system to bring the school closer to the world of work by proper partnership between formal education contexts and external organizations. The SWA Project revolves around the acquisition of some technical and methodological tools for the approach to knowledge, conservation, and enhancement of cultural heritage, having particular regard for diagnostic tools and ICTs. This article deals with the outcomes of the activities developed during the Project, discussing both the technical-professional and transversal skills acquired or expected to be acquired by the students. In addition, starting from the results of the activities, the authors speculate about possible outlooks of SWA in the heritage field considering: (i) the role of such a training path in raising young people's awareness to preserve cultural heritage by becoming active and proactive citizens; (ii) the relationship of SWA with regional and European-supported development policy strategies; (iii) the potential benefits that SWA can provide for cultural heritage from the synergy between different institutional actors.

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“…Many other previous studies have already established a link between infrared thermography and the detection of defects in stone materials, although in these studies the thermographic data for different points of the walls are interpreted by means of graphs [36]. Those areas where thermal discontinuities occur are usually where defects in the material are located.…”

Section: Thermographic Technologymentioning

confidence: 99%

Methodology for Thermal Behaviour Assessment of Homogeneous Façades in Heritage Buildings

et al. 2017

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It is fundamental to study the thermal behaviour in all architectural constructions throughout their useful life, in order to detect early deterioration ensuring durability, in addition to achieving and maintaining the interior comfort with the minimum energy consumption possible. This research has developed a methodology to assess the thermal behaviour of façades in heritage buildings. This paper presents methodology validation and verification (V & V) through a laboratory experiment. Guidelines and conclusions are extracted with the employment of three techniques in this experiment (thermal sensors, thermal imaging camera, and 3D thermal simulation in finite element software). A small portion of a homogeneous façade has been reproduced with indoor and outdoor thermal conditions. A closed chamber was constructed with wood panels and thermal insulation, leaving only one face exposed to the outside conditions, with a heat source inside the chamber that induces a temperature gradient in the wall. With this methodology, it is possible to better understand the thermal behaviour of the façade and to detect possible damage with the calibration and comparison of the results obtained by the experimental and theoretical techniques. This methodology can be extrapolated to the analysis of the thermal behaviour of façades in heritage buildings, usually made up of homogeneous material.

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Investigating Material Decay of Historic Buildings Using Visual Analytics With Multi‐temporal Infrared Thermographic Data

Cited by 31 publications

References 33 publications

Pathology of Building Materials in Historic Buildings. Relationship Between Laboratory Testing and Infrared Thermography

Pathology of Building Materials in Historic Buildings. Relationship Between Laboratory Testing and Infrared Thermography

Students Meet Cultural Heritage: An Experience within the Framework of the Italian School-Work Alternation (SWA)—From Outcomes to Outlooks

Methodology for Thermal Behaviour Assessment of Homogeneous Façades in Heritage Buildings

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