Tensile strength of steel fiber reinforced concrete

https://doi.org/10.1016/0008-8846(76)90122-8Get rights and content

Abstract

The paper presents theories to predict the direct tensile strength of concrete reinforced with short, discontinuous fibers uniformly dispersed and randomly oriented in the matrix. These theories are based on a law of mixtures approach and an effective fiber spacing concept which take into account the premature failure of the composite due to fiber-matrix interfacial bond failure. The validity of these theories is confirmed by experimental data on circular, duoform and rectangular fibers.

Zusammenfassung

In dieser Arbeit werden Theorien mitgeteilt, mittels derer die Zerreissfestigkeit von Beton, der mit kurzen, diskontinuierlichen, gleirlförmig verteilten und statistisch orientierten in die Matrix eingebetteten Fasern verstärkt ist, berechnecht werden kann. Diese Theorien basieren auf einem Ansatz für ein Michungsgesetz und einem effektiven Faserabstand, die das vorzeitige Versagen des Verbundwerkstoffers infolge des Versagens der Grenzflächen - Verbindung zwischen der Faser und der Matrix berücksichtigen. Die Gültigkeit dieser Theorien wird durch experimentelle Daten für kreisförmige, duoförmige und rechteckige Fasern bestätigt.

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