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Nonlinear ultrasonic evaluation of load effects on discontinuities in concrete / P. Antonaci in Cement and concrete research, Vol. 40 N° 2 (02 ex.) (Fevrier 2010) 

Public ISBD [article]  in Cement and concrete research > Vol. 40 N° 2 (02 ex.) (Fevrier 2010) . - pp. 340-346 Titre : Nonlinear ultrasonic evaluation of load effects on discontinuities in concrete Type de document : texte imprimé Auteurs : P. Antonaci, Auteur ; C. L. E. Bruno, Auteur ; P. G. Bocca, Auteur Année de publication : 2010 Article en page(s) : pp. 340-346 Note générale : Génie Civil Langues : Anglais (eng) Mots-clés : Characterization  Mechanical  properties  Microcracking  Degradation  Concrete Index. décimale : 691 Matériaux de construction. Pièces et parties composantes Résumé : The presence of discontinuity surfaces in concrete structures, i.e. two or more layers in contact, may be an existing situation with evident relapses on damage formation and progression. Differences occur depending on the type of discontinuity, which could be a thin weaker layer or a pre-existing crack. The behavior of pre-existing interfaces is here studied by means of the Scaling Subtraction Method, a Nonlinear Ultrasonic Non-Destructive Technique, that revealed to be effective in describing the mechanical evolution of concrete samples with discontinuity surfaces under the effects of compressive loads. DEWEY : 620.13 ISSN : 0008-8846 En ligne : http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TWG-4XJN4W8-1&_user=6 [...] [article] Nonlinear ultrasonic evaluation of load effects on discontinuities in concrete [texte imprimé] / P. Antonaci, Auteur ; C. L. E. Bruno, Auteur ; P. G. Bocca, Auteur . - 2010 . - pp. 340-346. Génie Civil Langues : Anglais (eng) in Cement and concrete research > Vol. 40 N° 2 (02 ex.) (Fevrier 2010) . - pp. 340-346 Mots-clés : Characterization  Mechanical  properties  Microcracking  Degradation  Concrete Index. décimale : 691 Matériaux de construction. Pièces et parties composantes Résumé : The presence of discontinuity surfaces in concrete structures, i.e. two or more layers in contact, may be an existing situation with evident relapses on damage formation and progression. Differences occur depending on the type of discontinuity, which could be a thin weaker layer or a pre-existing crack. The behavior of pre-existing interfaces is here studied by means of the Scaling Subtraction Method, a Nonlinear Ultrasonic Non-Destructive Technique, that revealed to be effective in describing the mechanical evolution of concrete samples with discontinuity surfaces under the effects of compressive loads. DEWEY : 620.13 ISSN : 0008-8846 En ligne : http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TWG-4XJN4W8-1&_user=6 [...]