Abstract
This report presents results from an investigation of fiber bond by pull out tests. Different deformed steel fibers in cement based matrixes are tested. The interaction between fiber bond by pull out tests and properties of the composite, the “multi-effect” and the “angle-effect” are discussed. These results are discussed in relation to each other and compared with developed theories. The report concludes that the interaction between steel fibers and cement based matrixes is of a very complex mechanical nature where the low tensile and shear strength of the matrix become the limiting factors when the fiber anchorage is increasing. The tests are presented more in detail in[9].
Résumé
On présente les résultats d'une étude de différentes fibres d'acier de haute adhérence dans des matrices à base de ciment, que l'on a soumises à l'essai par traction (pull out test). On examine l'interaction entre l'adhérence des fibres soumises à l'essai par traction et les propriétés du composite, ainsi que les «effects multiples» et «l'effet angulaire». On procède à une comparaison des résultats de ces essais les uns par rapport aux autres et avec les théories développées. La conclusion est que l'interaction entre les fibres d'acier et les matrices à base de ciment présente une très grande complexité mécanique où les très faibles résistances en traction et en cisaillement de la matrice deviennent des facteurs de limitation lorsque l'ancrage des fibres est augmenté.
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Maage, M. Interaction between steel fibers and cement based matrixes. Mat. Constr. 10, 297–301 (1977). https://doi.org/10.1007/BF02478831
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DOI: https://doi.org/10.1007/BF02478831