Acoustic Emission Monitoring of the Cathedral of Palma de Mallorca (Spain)

Río, Luis Miguel Suárez del; Argandoña, Vicente G. Ruiz de; Calleja, L.; Rey, Angel Rodríguez; Grossi-Sampedro, C; Montoto, M.

doi:10.1007/978-90-481-2684-2_18

Cited by 3 publications

(2 citation statements)

References 2 publications

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“…The crack growth and the associated acoustic emission are shown in Figure 15, based on the study of Carpinteri and Lacidogna [82]. Another example can be found in the study of Suarez del Rio et al [83], where the acoustic emission close to several cracks of the Cathedral of Palma de Mallorca (Spain) has been monitored. They also measured displacements in those cracks.…”

Section: Monitoring Using Acoustic Emission Techniquesmentioning

confidence: 90%

Non-Destructive Techniques Applied to Monumental Stone Conservation

Menéndez¹

2016

Non-Destructive Testing

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Non-destructive techniques have always been used in the study of built cultural heritage because of the high cultural value of the concerned objects and the need to preserve them as intact as possible. In this chapter, different non-destructive techniques applied to the conservation of historical building are presented. The selected techniques concern the measurement of some physical properties of the building materials measured at the surface: water absorption, permeability, water content, cohesion, hardness and so on; the actual conditions of the building: stress state, deformation, crack growth and so on; and in-depth physical properties: mechanical properties, inner structure of walls, damp location and salt content. Some of these techniques are used for inspection of the building at a given time, whereas others can be applied for long periods of time to investigate the evolution of the building or of one of its parts (e.g., crack propagation) with time. After presenting the physical background of each method, the main objective of this review is to focus on the applications, especially to discuss which information can be supplied and to present published results in each case. Some techniques are very simple and require very inexpensive equipment but others, which are mainly adaptations of field geophysical techniques, use more sophisticated technology and require post-acquisition treatments based on more complex physical principles. Finally, some examples of combinations of different techniques are presented because a unique method cannot provide all the information needed to understand the weathering processes taking place in a building. The final goal of the studies is to contribute to the preservation of the cultural heritage. The choice of the conservation strategies and methods should be based on a deep knowledge of the building, and nondestructive testing is usually the only way to get it.

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Section: Monitoring Using Acoustic Emission Techniquesmentioning

confidence: 90%

Non-Destructive Techniques Applied to Monumental Stone Conservation

Menéndez¹

2016

Non-Destructive Testing

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“…For more than 50 years, AE has been successfully applied in civil engineering and material science. A passive mode of collecting signals and high sensitivity make the AE a powerful tool for monitoring the structural integrity and healthy condition of various objects and structures (Suarez del Rio et al 2010;Accardo et al 1983;Jakieła et al 2007;Carpinteri et al 2007, Strojecki et al 2013.…”

Section: Introductionmentioning

confidence: 99%

Kaiser effect in historic timber elements

et al. 2013

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Timber elements are major structural and architectural components in historic buildings and at the same time belong to the category of materials vulnerable to degradation. The recovery of 150-year old timber beams from a roof of a historic building made possible the nondestructive investigation of their response to cyclic loading. The experimental study carried out using the acoustic emission technique provided evidence that historic wood shows the load memory known as the Kaiser effect. The effect was observed for different loading and unloading time windows. The observations open up a new perspective for the determination of defects in wooden objects and constructions, important for assessing their possible structural instability. Kaiser-Effekt in historischen HolzbalkenZusammenfassung Holz ist ein wichtiger tragender und architektonischer Baustoff in historischen Gebäuden, aber gehört gleichzeitig zur Kategorie zerstörungsanfälliger Materialien. An 150 Jahre alten Holzbalken aus dem Dach eines historischen Gebäudes konnte deren Verhalten bei zyklischer Belastung zerstörungsfrei untersucht werden. In Laboruntersuchungen konnte mittels Schallemissionsanalyse nachgewiesen werden, dass historisches Holz das als Kaiser-Effekt bekannte Erinnerungsvermögen an frühere Belastung aufweist. Dieser Effekt wurde bei unterschiedlichen Belastungs-und Entlastungszyklen beobachtet. Diese Ergebnisse eröffnen neue Perspektiven hinsichtlich der Bestimmung von Schäden in Holzbauteilen und -konstruktionen, was für die Beurteilung eventueller baulicher Instabilität wichtig ist.

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