2018
DOI: 10.3390/ma11122543
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Non-Destructive Assessment of Masonry Pillars using Ultrasonic Tomography

Abstract: In this paper, a condition assessment of masonry pillars is presented. Non-destructive tests were performed on an intact pillar as well as three pillars with internal inclusions in the form of a hole, a steel bar grouted by gypsum mortar, and a steel bar grouted by cement mortar. The inspection utilized ultrasonic stress waves and the reconstruction of the velocity distribution was performed by means of computed tomography. The results showed the possibilities of tomographic imaging in characterizing the inter… Show more

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Cited by 48 publications
(29 citation statements)
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References 41 publications
(51 reference statements)
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“…The number of pixels can be changed, so that the effect of spatial resolution on the quality of the image can be studied. Ultrasound tomography images acquired through a dense configuration of transmitters and receivers, attributed with different heights have been used by Zielińska and Rucka (2018) to assess the three-dimensional internal structure of various masonry pillars. Similarly, the internal conditions of building stone materials of the investigated architectural elements were represented in a 3D view of intersecting tomographic slices by Fais et al (2018) for the Palazzo di Città building in the historical centre of Cagliari.…”
Section: Ultrasonic Testingmentioning
confidence: 99%
“…The number of pixels can be changed, so that the effect of spatial resolution on the quality of the image can be studied. Ultrasound tomography images acquired through a dense configuration of transmitters and receivers, attributed with different heights have been used by Zielińska and Rucka (2018) to assess the three-dimensional internal structure of various masonry pillars. Similarly, the internal conditions of building stone materials of the investigated architectural elements were represented in a 3D view of intersecting tomographic slices by Fais et al (2018) for the Palazzo di Città building in the historical centre of Cagliari.…”
Section: Ultrasonic Testingmentioning
confidence: 99%
“…Commercial exponential transducers with the waveguide length L = 50 mm, diameters ø1 = 4.2 mm and ø2 = 50 mm, and frequency 54 kHz were employed. The applied research methodology and equipment was also used for testing also for ultrasonic tomography for concrete [26][27] or masonry [28][29].…”
Section: Testing Technique Of Specimensmentioning
confidence: 99%
“…Studies in [12][13][14][15][16][17][18][19][20] have specified some methods used for the detection of structural damages based on dynamic parameters. In addition, other nondestructive methods are known, such as inter alia model-based calculations and optimization data-driven algorithms [21,22], or mechanical wave propagation records [23,24]. Some researchers have combined the results of tests performed with accelerometers with FEM analyses for verification of structures, including football stadium roofing [25], elevated walkways [26,27], or cable stayed bridges [28].…”
Section: Introductionmentioning
confidence: 99%