Pull-out behavior of prestressing strands in steel fiber reinforced concrete

Baran, Eray; Akış, Tolga; Yeşilmen, Seda

doi:10.1016/j.conbuildmat.2011.08.040

Cited by 50 publications

(12 citation statements)

References 14 publications

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“…This is attributed to the increase in the fiber/matrix contact area that occurs with increasing fiber embedment length. Similar observations have also been reported by Wang et al 4 and Baran et al 5 Meanwhile, Figure 6(b) shows that the peak pull-out load does not appear to be directly proportional to the fiber embedment length. This is because the onset of fiber debonding corresponds to the condition at which the interfacial crack driving force is equal to the interfacial fracture toughness at the local mode mixity.…”

Section: Single Fiber Pull-outsupporting

confidence: 88%

“…3 Prior work has also shown that the best overall toughening of ceramic matrix composite may require debonding and frictional sliding to occur at the interfaces between the fibers and matrix. [4][5][6][7] Several studies have been carried out to examine the effects of bonding properties between fibers and matrix on the overall toughness of composite materials. These studies focus on interfacial tensile strength, 8,9 interfacial shear strength [10][11][12] or the combined stress state of normal and shear.…”

Section: Introductionmentioning

confidence: 99%

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Pull-out behavior of natural fiber from earth-based matrix

Mustapha

Azeko

Annan

et al. 2016

Journal of Composite Materials

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This paper presents the results of a combined experimental and analytical study of the pull-out behavior of natural fiber (grass straw) from an earth-based matrix. A single fiber pull-out approach was used to measure interfacial properties that are significant to toughening brittle materials via fiber reinforcement. This was used to study the interfacial shear strengths of straw fiber-reinforced earth-based composites with a matrix that consists of 60 vol. % laterite, 20 vol. % clay and 20 vol. % cement. The composites that were used in the pull-out tests included composites reinforced with 0, 5, 10 and 20 vol. % of straw fibers. The toughening behavior of fiber-reinforced earth-based matrix was analyzed in terms of their interfacial shear strengths and bridging zones, immediately behind the crack tip. This approach is consistent with microscopic observations that reveal intact bridging fibers behind the crack tip, as a result of debonding of the fiber–matrix interface. Analytical models were used to study the debonding of fiber from the matrix materials, as well as the toughening due to crack-tip shielding via bridging. The results show that increasing the fiber embedment length and the fiber volume fraction (in the earth/cement matrix) increases the peak pull-out load. The debonding process was also found to be associated with a constant friction stress. The combined effects of multiple toughening mechanisms (debonding and crack bridging) are elucidated along with the implications of the results for the design of earth-based composites for potential applications in robust building materials for sustainable eco-friendly homes.

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Section: Single Fiber Pull-outsupporting

confidence: 88%

Section: Introductionmentioning

confidence: 99%

Pull-out behavior of natural fiber from earth-based matrix

Mustapha

Azeko

Annan

et al. 2016

Journal of Composite Materials

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“…Considered bond strength between the fiber and the concrete matrix is necessary to increase the performance of fiber reinforced concrete, where pull-out tests are usually used to evaluate this bond strength of the composite [15][16][17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Monitoring of impact of hooked ends on mechanical behavior of steel fiber in concrete

Khabaz

2016

Construction and Building Materials

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“…The bonding strength capacity is found to increase by 35% when MK concrete is developed with steel fibers [25]. In another studies [6,7] it was stated that by controlling the crack growth inside the concrete, the pull out resistance was enhanced when steel fibers were introduced.…”

Section: Tensile Strengthmentioning

confidence: 97%

Ideal supplementary cementing material – Metakaolin: A review

Thankam

Renganathan

2020

International Review of Applied Sciences and Engineering

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Though being an ancient trend, usage of the homogeneous material cement in the construction industry is steadily getting eradicated with the springing up of supplementary cementing materials (SCM). Metakaolin is an imminent mineral admixture extracted from the mineral ore kaolinite, which enhances the interfacial zone by more efficient packing at the cement paste-aggregate particle interface, thus reducing the bleeding and producing a denser, more homogeneous transition zone microstructure. This paper depicts the various repercussions of the pozzolanic material metakaolin in the fresh and hardened properties of concrete when replaced with cement in finite amount. Also, it states the behavior of high-performance concrete and self-compacting concrete with metakaolin.

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Pull-out behavior of prestressing strands in steel fiber reinforced concrete

Cited by 50 publications

References 14 publications

Pull-out behavior of natural fiber from earth-based matrix

Pull-out behavior of natural fiber from earth-based matrix

Monitoring of impact of hooked ends on mechanical behavior of steel fiber in concrete

Ideal supplementary cementing material – Metakaolin: A review

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