Abstract

The ultrasonicpulse velocity (UPV) method can be conveniently used to check the quality of stones and alsofor material characterization. Both the intrinsic characteristic of the stone (porosity, grain size,anisotropy, etc.) and the external factors (humidity, stress, temperature, presence of cracks)may affect the elastic wave propagation, thus in order to correctly estimate the ultrasonicbehavior of the investigated material it is important to know in what manner and how muchthe variation of the experimental conditions may modify the characteristics of the wavesbeing measured. This aspect is of crucial importance when in situ measurements are made.In this work the attention isfocused on two parameters: the wave frequency used in the measurements and the applicationof an external load. In the presentwork the effect of loading on the UPV has been investigated for the Lecce stone varying thewave frequency and the specimen geometry.Results provide further knowledge about the response of soft stones to UPVpropagation, evidencing that, as for concrete and mortars, UPV are not influenced so much bythe application of load before that crack damage occurs. This result supports the possibility ofusing ultrasonic pulse velocities to characterize physical and mechanical properties of thestone within a building.Moreover, the obtained results suggest that when UPV are employed to assess the quality ofstones or their mechanical and physical properties, it would be a good practice to use morethan one frequency of measurement.

Autore Pugliese

• Calia Angela

Tutti gli autori

• E.Vasanelli; A. Calia; V. Luprano; F. Micelli; A. Tatì

Titolo volume/Rivista

Non Disponibile

Anno di pubblicazione

2015

ISSN

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ISBN

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Numero di citazioni Wos

Nessuna citazione

Ultimo Aggiornamento Citazioni

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Numero di citazioni Scopus

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Ultimo Aggiornamento Citazioni

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Settori ERC

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Codici ASJC

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