EVALUATION OF WOOD DECAY OF FLOOR OF HISTORIC BUILDING USING ULTRASONIC WAVES

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Darci Alberto Gatto Margarete Regina Freitas Goncalves Bruno Dufau Mattos Leandro Calegari Diego Martins Stangerlin

Abstract

This study aimed to detect the external degree of decay of Araucaria angustifolia (Bert.) O. Kuntze wood used in flooring. The visual method through grades and the non-destructive method based on the propagation of ultrasound waves were applied. The comparison between the propagation velocity of ultrasonic waves on clear wood and decayed wood showed statistical difference at the 5% level. Moreover, the proportion of decay wood was inversely proportional to the velocity of propagation. The samples were evaluated only on their superficial faces, therefore additional studies to assess the influence of the wood internal defects in the ultrasonic velocity are necessary.

 

Article Details

How to Cite
GATTO, Darci Alberto et al. EVALUATION OF WOOD DECAY OF FLOOR OF HISTORIC BUILDING USING ULTRASONIC WAVES. CERNE, [S.l.], v. 18, n. 4, p. 651-656, apr. 2016. ISSN 2317-6342. Available at: <http://cerne.ufla.br/site/index.php/CERNE/article/view/864>. Date accessed: 22 sep. 2019.
Keywords
Wood quality, non-destructive method, ultrasound waves.
Section
Article