Bond of Reinforcing Bars to Steel Fiber Reinforced Concrete (SFRC)

Taengua, García; José, Emilio

doi:10.4995/thesis/10251/32952

Cited by 1 publication

(2 citation statements)

References 25 publications

(60 reference statements)

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“…Figure shows the relationship between bond strength and c / d for these selected specimens. Although c / d of pullout specimens is larger than that of beam specimens, as shown in Figure , a linear relationship of bond strength and c / d is observed except for two points with a large deviation obtained by Garcia‐Taengua et al In fact, a similar variation law of bond strength with c / d within a certain range has been demonstrated in the study by Hou et al From this viewpoint, bond strength obtained in this type of beam test can be considered to be close to that obtained in pullout tests. However, the direct comparison experimental study is further required to understand the relationship of bond strength obtained from these two types of tests.…”

Section: Bond Strength Modelsupporting

confidence: 82%

“…It is noted that beam specimens with bonding in the pure‐bending zone were tested by Harajli et al which is different from the pullout specimens used in this test. The comparison of bond strength was carried out between this type of beam specimens and pullout specimens with the same bond length of 5 d and ratio of fiber length to diameter but varied c / d and fiber fractions. Figure shows the relationship between bond strength and c / d for these selected specimens.…”

Section: Bond Strength Modelmentioning

confidence: 99%

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Bond behavior of reinforcement embedded in steel fiber reinforced concrete under chloride attack

Hou

Zhou

et al. 2019

Structural Concrete

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Bonding between rebar and steel fiber reinforced concrete (SFRC) has a major effect on reinforced SFRC members exposed to chloride environments where both steel fiber and reinforcement are subjected to corrosion damage. This paper presents an experimental study of the effect of corrosion on the bond behavior of reinforcement and SFRC. The test parameters include corrosion ratio, fiber fraction, and cover thickness‐rebar diameter ratio (c/d). Failure patterns, bond‐slip curves, and bond strength were compared. Increasing fiber fraction and c/d ratio enhanced bond strength and residual bond strength through improved confinement by the surrounding SFRC. With increasing corrosion, bond strength at first retained its initial strength or increased slightly and then reduced at corrosion ratios beyond 6–8.88%. A bond strength model is proposed which considers the combined effect of corrosion ratio, fiber fraction, and c/d ratio.

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Section: Bond Strength Modelsupporting

confidence: 82%

Section: Bond Strength Modelmentioning

confidence: 99%