Heterogeneity detection of Portuguese–Brazilian masonries through ultrasonic velocities measurements

In this work, ultrasonic tests were carried out on the external walls of the Nossa Senhora do Rosário dos Pretos Church, an ancient masonry structure from XVIII century, placed at Aracati, Brazil. The main aim of this research is to characterize the ultrasonic velocities of the external walls of the...

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Bibliographic Details
Published inJournal of civil structural health monitoring Vol. 8; no. 5; pp. 847 - 856
Main Authors Mesquita, Esequiel, Martini, Rachel, Alves, André, Mota, Larissa, Rubens, Tallis, Antunes, Paulo, Varum, Humberto
Format Journal Article
LanguageEnglish
Published Berlin/Heidelberg Springer Berlin Heidelberg 01.11.2018
Springer Nature B.V
Subjects
Civil Engineering
Control
Dynamical Systems
Engineering
External walls
Heterogeneity
Historical buildings
Historical structures
Masonry
Measurement Science and Instrumentation
Original Paper
Retrofitting
Ultrasonic testing
Ultrasonic tests
Vibration
Brazil
Ultrasonic test
Nossa Senhora do Rosário dos Pretos Church
Non-destructive characterization
Masonry structure
Heritage constructions
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Summary:In this work, ultrasonic tests were carried out on the external walls of the Nossa Senhora do Rosário dos Pretos Church, an ancient masonry structure from XVIII century, placed at Aracati, Brazil. The main aim of this research is to characterize the ultrasonic velocities of the external walls of the church and identify the heterogeneity of the masonries; to assist furthers maintenance measures, as well to collect quantitative data about the state of conservation of the church. Ultrasonic results are, in general, difficult to analyze, especially due to the variability of the measures way. This way, a methodology to collecting the measures of indirect ultrasonic measurements was developed and it is presented in this paper. This methodology consists in a frame-by-frame comparative analysis of contour maps, obtained from systematic measures of ultrasonic pulse. The method allows the application of indirect ultrasonic measures to characterize clay bricks panels, as well allows the repeatability of further measures in the same points. The results show that ultrasonic tests can be applied for characterize walls homogeneity, offering useful information to control the maintenance or retrofitting measures.
ISSN:2190-5452
2190-5479
DOI:10.1007/s13349-018-0312-5