Non-destructive techniques (NDT) for the diagnosis of heritage buildings: Traditional procedures and futures perspectives

Tejedor, Blanca; Lucchi, Elena; Bienvenido-Huertas, David; Nardi, Iole

doi:10.1016/j.enbuild.2022.112029

Cited by 74 publications

(21 citation statements)

References 179 publications

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“…Formally, Equation ( 21) is an integral over the time of the pulse response represented as (17). Below, for illustrative purposes, an inverse operation is presented, i.e., a derivative of Equation ( 17), equivalent to (21). The equivalent symbol grouping some others k = n•L/a and:…”

Section: Pulsed Thermography (Pt) and Pulsed Phase Thermography (Ppt)mentioning

confidence: 99%

“…It is an idea of FC technique. Thanks to a slightly more complex RIFC method, instead of FC, the distribution of the processed thermal signal no longer depends on the C SH coefficient, but only on the thermal mismatch R, thermal diffusivity a of the tested material and the depth of the defect L-Equation (21). If thickness of the tested material is much greater than thickness of the first layer above the defect the processed thermogram after RIFC technique is an estimation of so-called 'normalized temperature', i.e.,…”

Section: Example Of Using the Ir Defect Detector For Pmma Materials T...mentioning

confidence: 99%

“…Initially, Qualitative NDT Thermography used in defectoscopy was concerned with defect detection and localization. Of course, the application of qualitative TNDT is much wider, e.g., in medicine, civil engineering or diagnosis of heritage buildings [21]. For example, it is used for energy diagnosis of buildings, without looking for defects, but for material composition [22].…”

Section: Introductionmentioning

confidence: 99%

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Noninvasive Methods of Active Thermographic Investigation: Short Overview of Theoretical Foundations with an Example of Application

Gryś

Minkina

2022

Energies

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The field of non-destructive testing using thermography (NDT—Non-Destructive Testing and NDE—Non Destructive Evaluation) was established in the 1960s as a competitive and complementary method to ultrasonic or X-ray testing. Non-destructive quality control of objects is essential in modern industry, especially in mass production. It is an integral part of the quality control process. The reason for the introduction of non-destructive testing into diagnostic techniques were disasters and failures of various equipment and structures. Over the years, a division has been drawn between passive and active thermography. The aim of this publication is to present the theoretical basis of non-destructive testing with the use of active infrared thermography methods. It describes selected models of transient heat flow (thermal wave) in objects of various shapes and physical properties. They are the basis for understanding the changes in the surface temperature of the studied objects in time, which are the response to thermal excitation of different nature. An example of their effective application in engineering practice is the author’s software, in which the recorded time response is matched to the analytical solution, and on this basis detected anomalies are parameterized, detected by the fusion of various techniques of thermal image processing and analysis methods.

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Section: Pulsed Thermography (Pt) and Pulsed Phase Thermography (Ppt)mentioning

confidence: 99%

Section: Example Of Using the Ir Defect Detector For Pmma Materials T...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Noninvasive Methods of Active Thermographic Investigation: Short Overview of Theoretical Foundations with an Example of Application

Gryś

Minkina

2022

Energies

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“…(ii) the building envelope diagnostics for standardized energy audits [10]. (iii) the traditional procedures and futures perspectives of NDTs for the diagnosis of heritage buildings [11].…”

Section: Introductionmentioning

confidence: 99%

Review of InfraRed Thermography and Ground-Penetrating Radar Applications for Building Assessment

Garrido

Solla

Lagüela

et al. 2022

Advances in Civil Engineering

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The first appearance of concern for the good condition of a building dates back to ancient times. In recent years, with the emergence of new inspection technologies and the growing concern about climate change and people’s health, the concern about the integrity of building structures has been extended to their analysis as insulating envelopes. In addition, the growing network of historic buildings gives this sector special attention. Therefore, this study presents a comprehensive review of the application of two of the most common and most successful Non-Destructive Techniques (NDTs) when inspecting a building: InfraRed Thermography (IRT) and Ground-Penetrating Radar (GPR). To the best knowledge of the authors, it is the first time that a joint compilation of the state-of-the-art of both IRT and GPR for building evaluation is performed in the same work, with special emphasis on applications that integrate both technologies. The authors briefly explain the performance of each NDT, along with the individual and collective advantages of their uses in the building sector. Subsequently, an in-depth analysis of the most relevant references is described, according to the building materials to be studied and the purpose to be achieved: structural safety, energy efficiency and well-being, and heritage preservation. Then, three different case studies are presented with the aim of illustrating the potential of the combined use of IRT and GPR in the evaluation of buildings for the purposes defined. Last, the final remarks and future lines are described on the application of these two interesting inspection technologies in the preservation and conservation of the building sector.

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“…In particular, the deep learning (DL) method is currently showing its power in this area. Recently, the work by Tejedor et al [5] introduces the future perspectives of the DL method for the diagnosis of heritage buildings. The methods reviewed in the paper cover several important topics, e.g., object detection which can be integrated with UAVs and a GPS system [6], 3D models for the reconstruction of lost architectural heritage [7], and neural networks applied to heat flux meter (HFM) methods [8,9].…”

Section: Introductionmentioning

confidence: 99%

Image Retrieval for Local Architectural Heritage Recommendation Based on Deep Hashing

Wang

et al. 2022

Buildings

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Propagating architectural heritage is of great significance to the inheritance and protection of local culture. Recommendations based on user preferences can greatly benefit the promotion of local architectural heritage so as to better protect and inherit historical culture. Thus, a powerful tool is necessary to build such a recommendation system. Recently, deep learning methods have proliferated as a means to analyze data in architectural domains. In this paper, based on a case study of Jiangxi, China, we explore a recommendation system for the architectural heritage of a local area. To organize our experiments, a dataset for traditional Chinese architecture heritage is constructed and a deep hashing retrieval method is proposed for the recommendation task. By utilizing a data fine-tuning strategy, our retrieval method can realize high-accuracy recommendation and break the model training restriction caused by insufficient data on local architectural heritage. Furthermore, we analyze the retrieval answers and map the data into a two-dimensional space to reveal the relationships between different architectural heritage categories. An image-to-location application is also provided for a better user experience.

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Non-destructive techniques (NDT) for the diagnosis of heritage buildings: Traditional procedures and futures perspectives

Cited by 74 publications

References 179 publications

Noninvasive Methods of Active Thermographic Investigation: Short Overview of Theoretical Foundations with an Example of Application

Noninvasive Methods of Active Thermographic Investigation: Short Overview of Theoretical Foundations with an Example of Application

Review of InfraRed Thermography and Ground-Penetrating Radar Applications for Building Assessment

Image Retrieval for Local Architectural Heritage Recommendation Based on Deep Hashing

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