Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Self-monitoring in carbon fiber reinforced mortar by reactance measurement
Concrete, reinforced with short carbon fibers, is attractive not only for its low drying shrinkage, high flexural strength, high tensile strength, high flexural toughness and high tensile ductility, but also for its ability to sense its own strain and damage. The self-monitoring ability is associated with the change in DC electrical resistivity upon strain or damage. Self-monitoring in carbon fiber reinforced mortar was demonstrated by AC impedance measurement. The reactance Xs was found to be a more sensitive indicator of strain than the resistance Rs. The fractional increase in Xs was 38 at compressive failure, while the fractional increase in Rs was 23, for mortar with methylcellulose, silica fume and fibers (0.35 vol-%).
Self-monitoring in carbon fiber reinforced mortar by reactance measurement
Concrete, reinforced with short carbon fibers, is attractive not only for its low drying shrinkage, high flexural strength, high tensile strength, high flexural toughness and high tensile ductility, but also for its ability to sense its own strain and damage. The self-monitoring ability is associated with the change in DC electrical resistivity upon strain or damage. Self-monitoring in carbon fiber reinforced mortar was demonstrated by AC impedance measurement. The reactance Xs was found to be a more sensitive indicator of strain than the resistance Rs. The fractional increase in Xs was 38 at compressive failure, while the fractional increase in Rs was 23, for mortar with methylcellulose, silica fume and fibers (0.35 vol-%).
Self-monitoring in carbon fiber reinforced mortar by reactance measurement
Selbstüberwachung in kohlenstoffaserverstärkten Mörteln durch Reaktanzmessung
Fu, X. (Autor:in) / Ma, E. (Autor:in) / Chung, D.D.L. (Autor:in) / Anderson, W.A. (Autor:in)
Cement and Concrete Research ; 27 ; 845-852
1997
8 Seiten, 7 Bilder, 1 Tabelle, 35 Quellen
Aufsatz (Zeitschrift)
Englisch
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