Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Leaky Rayleigh wave investigation on mortar samples
Aggressive mineralized ground water may harm the concrete cover of tunnels and other underground constructions. Within a current research project mortar samples are used to study the effects of sulfate interaction in accelerated laboratory experiments. A nondestructive test method based on ultrasonic surface waves was developed to investigate the topmost layer of mortar samples. A pitch and catch arrangement is introduced for the generation and reception of leaky Rayleigh waves in an immersion technique allowing the measurement of their propagation velocity. The technique has been successfully verified for the reference materials aluminium, copper, and stainless steel. The technique has been successfully verified for the reference materials aluminium, copper, and stainless steel. First measurements have been performed for a few watersaturated mortar specimens giving cLR = 2.30-2.40 km/s.
Leaky Rayleigh wave investigation on mortar samples
Aggressive mineralized ground water may harm the concrete cover of tunnels and other underground constructions. Within a current research project mortar samples are used to study the effects of sulfate interaction in accelerated laboratory experiments. A nondestructive test method based on ultrasonic surface waves was developed to investigate the topmost layer of mortar samples. A pitch and catch arrangement is introduced for the generation and reception of leaky Rayleigh waves in an immersion technique allowing the measurement of their propagation velocity. The technique has been successfully verified for the reference materials aluminium, copper, and stainless steel. The technique has been successfully verified for the reference materials aluminium, copper, and stainless steel. First measurements have been performed for a few watersaturated mortar specimens giving cLR = 2.30-2.40 km/s.
Leaky Rayleigh wave investigation on mortar samples
Untersuchung von Leaky-Rayleighwellen an Mörtelproben
Neuenschwander, J. (Autor:in) / Schmidt, T. (Autor:in) / Lüthi, T. (Autor:in) / Romer, M. (Autor:in)
Ultrasonics ; 45 ; 50-55
2006
6 Seiten, 7 Bilder, 1 Tabelle, 23 Quellen
Aufsatz (Zeitschrift)
Englisch
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