Ultrasonic pulse velocity for the evaluation of physical and mechanical properties of a highly porous building limestone

Ultrasonics
Emilia VasanelliMaria Antonietta Aiello

Abstract

UPV as non-destructive technique can effectively contribute to the low invasive in situ analysis and diagnosis of masonry elements related to the conservation, rehabilitation and strengthening of the built heritage. The use of non-destructive and non-invasive techniques brings all the times many advantages in diagnostic activities on pre-existing buildings in terms of sustainability; moreover, it is a strong necessity with respect to the conservation constraints when dealing with the historical-architectural heritage. In this work laboratory experiments were carried out to investigate the effectiveness of ultrasonic pulse velocity (UPV) in evaluating physical and mechanical properties of Lecce stone, a soft and porous building limestone. UPV and selected physical-mechanical parameters such as density and uniaxial compressive strength (UCS) were determined. Factors such as anisotropy and water presence that induce variations on the ultrasonic velocity were also assessed. Correlations between the analysed parameters are presented and discussed. The presence of water greatly affected the values of the analysed parameters, leading to a decrease of UPV and to a strong reduction of the compressive strength. A discussion of the role o...Continue Reading

References

Mar 30, 2004·Ultrasonics·L M del RíoJ M Paniagua
Aug 15, 2006·Forensic Science International : Synergy·Brian Hobbs, Mohamed Tchoketch Kebir
May 13, 2008·Ultrasonics·G VasconcelosJ Pamplona

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