Ultrasound technique to assess the physical conditions of the Monument to Ramos de Azevedo, city of São Paulo, Brazil

Grossi, Danielle; Lama, Eliane Aparecida Del

doi:10.1590/0370-44672015680017

Cited by 4 publications

(3 citation statements)

References 7 publications

(8 reference statements)

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“…The goal is preventive conservation while minimizing damage [ 9 , 10 ]. In this sense, various types of sensors or instruments have been used to monitor this type of building [ 11 , 12 , 13 , 14 , 15 , 16 ].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Hygrothermal Behaviour in Heritage Buildings through Sensors, CFD Modelling and IRT

Lerma

Borràs

Más

et al. 2021

Sensors

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Architectural heritage, building materials and interior space are highly susceptible to temperature and relative humidity. A better knowledge of the hygrothermal dynamics inside buildings allows an adequate conservation of heritage. This work compares three non-destructive techniques (NDT), such as temperature and relative humidity sensors, finite element simulations (CFD) and thermographic pictures (IRT). The work has made it possible to carry out an assessment of the risk of condensation over a year and to identify affected periods and areas of the building. Sensors and IRT pictures provide real data to validate CFD simulations, facilitating a global analysis of the building. The results provided reflect a great concordance between the NDTs used.

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Section: Introductionmentioning

confidence: 99%

Evaluation of Hygrothermal Behaviour in Heritage Buildings through Sensors, CFD Modelling and IRT

Lerma

Borràs

Más

et al. 2021

Sensors

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“…With the development of innovative detection techniques, its use has extended to a growing number of fields. Monitoring systems often comprise several types of sensors [2,3] and instrumentation based on electrical resistivity [4,5], wave propagation [6][7][8] or infrared radiation [9,10], among others.…”

Section: Introductionmentioning

confidence: 99%

A comprehensive study for moisture control in cultural heritage using non-destructive techniques

Martínez-Garrido

Fort

Gómez-Heras

et al. 2018

Journal of Applied Geophysics

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This article describes the use of non-or minimally destructive methods to study damp in San Juan Bautista Church at Talamanca de Jarama in the Spanish province of Madrid. The combination of ground penetrating radar (GPR), electrical resistivity tomography (ERT) and wireless sensor network (WSN) techniques provided sub-surface information, while data on wall surfaces were collected with contact hygrometry and infrared thermography. The respective findings and ranges of observation were interrelated to identify the decay associated with the damp and determine the advantages and drawbacks of each instrumental method. 1. 2. METHODS The study objectives were pursued with several non-invasive monitoring instruments, including data loggers, electrical conductivity and resistivity meters, infrared thermographic cameras and ground-penetrating radar antennas. This section describes the study scenario, along with the techniques and deployment schemes used. The building analysed in the case study was chosen in light of the intense damp of uncertain origin present in its walls. As several possible sources of the problem were considered, including indoor variability, leakage, the rise of capillary water and the type of construction material used, monitoring techniques based on different physical principles (such as resistivity or wave propagation) were used at different depth ranges.

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“…estudos de caracterização da rocha por métodos não destrutivos já foram realizados em alguns monumentos da cidade de São Paulo (auGuSTo, 2009;roDriGueS, 2012;Gimenez;GroSSi;Del lama, 2015;GroSSi et al, 2015;maChaDo, 2015;Del lama et al, 2016).…”

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Patrimônio pétreo paulistano: análise sob a ótica de propagação de ondas ultrassônicas

Lama

Gimenez²,

Grossi³

et al. 2018

Cad. LEPAARQ

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A medição da velocidade de propagação de ondas ultrassônicas, método de análise não destrutivo, é uma técnica eficiente para avaliar o estado de conservação da rocha e a profundidade de penetração de consolidantes em monumentos. Este trabalho objetiva analisar monumentos pétreos da cidade de São Paulo com base nesta técnica. A superfície de acabamento é um ponto chave na obtenção dos dados, uma vez que superfícies polidas permitem o perfeito acoplamento dos transdutores, favorecendo a execução do ensaio de forma adequada. Os dados apontam rochas não alteradas ou ausência de fraturamento nos monumentos analisados. Abstract: Ultrasound pulse velocity, a non-destructive analytical method, is an efficient technique to evaluate the state of conservation of the rock and the depth of penetration of consolidants in monuments. This work aims to analyze stone monuments of the city of São Paulo based on this method. The finishing surface is a key point in obtaining the data, since polished surfaces allow the perfect coupling of the transducers, favoring the performance of the test in an appropriate manner. The data indicate unweathered rocks or absence of fractures in the analyzed monuments.

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Ultrasound technique to assess the physical conditions of the Monument to Ramos de Azevedo, city of São Paulo, Brazil

Cited by 4 publications

References 7 publications

Evaluation of Hygrothermal Behaviour in Heritage Buildings through Sensors, CFD Modelling and IRT

Evaluation of Hygrothermal Behaviour in Heritage Buildings through Sensors, CFD Modelling and IRT

A comprehensive study for moisture control in cultural heritage using non-destructive techniques

Patrimônio pétreo paulistano: análise sob a ótica de propagação de ondas ultrassônicas

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