Studying the fracture parameters and size effect of steel fiber-reinforced self-compacting concrete

Ghasemi, Mohammad Reza; Mousavi, Seyed Roohollah

doi:10.1016/j.conbuildmat.2018.12.172

Cited by 66 publications

(45 citation statements)

References 27 publications

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“…This is due to the fact that steel fibers control the propagation of micro-cracks, helps the specimens to take load even after yielding and ensures ductile failure of test specimens. Similar results were reported by [1,26]. In their experiments, it was observed that the control specimens showed brittle failure while in steel fiber specimens, debonding of steel fibers from concrete matrix occurred very slowly and the failure of specimen was not sudden.…”

Section: Discussionsupporting

confidence: 85%

Fuzzy logic model for investigating the effect of steel fibers on mechanical properties of concrete

2019

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This study aimed to use fuzzy logic model to predict various mechanical properties such as compressive strength, flexural strength and post-peak deformation of steel-fiber reinforced concrete. For this purpose, five different dosages of steel fibers (10 kg/m 3 , 12.5 kg/m 3 , 15 kg/m 3 , 17.5 kg/m 3 and 20 kg/m 3) were used in the mix design. A total of 3 specimens (cylinders and beams) were casted for each fiber dosage and experimentally tested. The experimental results were compared with the simulated results obtained from fuzzy model using fuzzy logic toolbox provided in MATLAB®. It was found that the addition of steel fibers improved the flexural strength and post-peak deformation capability of test specimens by almost 12% and 20% respectively. The compressive strength of specimens also increased by 9.15%, when the amount of steel fibers was increased from 10 to 20 kg/m 3. Overall, the compressive strength reduced with the addition of fibers as compared to specimens with no fibers. Similarly, it was also observed that fuzzy model can predict the study parameters within acceptable accuracy and the percentage difference between the simulated and experimental values was below 7.5%.

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Section: Discussionsupporting

confidence: 85%

Fuzzy logic model for investigating the effect of steel fibers on mechanical properties of concrete

2019

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“…Similarly, Kazemi et al [ 34 ] reported that due to an increase in fiber content, the fracture properties increased and resulted in a more ductile performance of SFRC. The increase in fracture properties with increasing fiber contents has been reported by many other researchers [ 24 , 34 , 196 , 197 , 201 ]. Similar to the steel fibers, the addition of various other types of fibers (e.g., PP fiber [ 7 , 226 ], glass, and basalt fiber [ 83 ]) had also been found to result in the enhancement of the fracture properties of CBMs due to the increase in fiber content.…”

Section: Factors Affecting Fracture Properties Of Frcbmssupporting

confidence: 70%

“…The defects in a matrix can be reduced at a lower w/c, which can further improve the fiber–matrix ITZ. Mostly, fracture properties improve with lower w/c values [ 24 , 33 , 231 , 232 ], as well as tensile strength of fiber [ 197 , 231 ]. Usually, the energy consumption of FRCBMs mostly occurs through fiber fracture and fiber pull-out from the matrix, depending on the strength of the binder.…”

Section: Factors Affecting Fracture Properties Of Frcbmsmentioning

confidence: 99%

Effect of Short Fiber Reinforcements on Fracture Performance of Cement-Based Materials: A Systematic Review Approach

2021

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Fracture characteristics were used to effectively evaluate the performance of fiber-reinforced cementitious composites. The fracture parameters provided the basis for crack stability analysis, service performance, safety evaluation, and protection. Much research has been carried out in the proposed study field over the previous two decades. Therefore, it was required to analyze the research trend from the available bibliometric data. In this study, the scientometric analysis and science mapping techniques were performed along with a comprehensive discussion to identify the relevant publication field, highly used keywords, most active authors, most cited articles, and regions with largest impact on the field of fracture properties of cement-based materials (CBMs). Furthermore, the characteristic of various fibers such as steel, polymeric, inorganic, and carbon fibers are discussed, and the factors affecting the fracture properties of fiber-reinforced CBMs (FRCBMs) are reviewed. In addition, future gaps are identified. The graphical representation based on the scientometric review could be helpful for research scholars from different countries in developing research cooperation, creating joint ventures, and exchanging innovative technologies and ideas.

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“…In recent studies, the role of fiber orientation, distribution and pull‐out/torsional behavior on the transferred stress for enhancing the postcracking flexural strength was determined 9–11 as well as a size effect 12 . Additionally, image processing and tomography techniques have been applied to monitor the role of fibers as a nondestructive method 13–18 and the crack patterns have been estimated from surfaces of the specimen 19 …”

Section: Introductionmentioning

confidence: 99%

Novel percolation‐based measure for fiber efficacy in fiber‐reinforced concrete beams

Aryanfar

Şanal

Marian

2020

Structural Concrete

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Fiber‐reinforced concrete exhibits a heterogeneous microstructure formed by aggregates, fibers and a matrix, where the stress from external forces can lead to cracking and fracture. This paper discusses the development of a computational measure for predicting the fiber's efficacy by means of the energy absorbed within the initiated area of the cracks. The analytical development was verified with experimental data from the literature and the results were justified with numerical simulations in the elastic regime. This development couples the localization of the stress in the crack tip with the random distribution of the cracks, which leads to the spatial strain field. Such percolation‐based quantification of the cracks in the early‐stage particularly is useful for effective utilization of fibers during the cracking progress.

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Studying the fracture parameters and size effect of steel fiber-reinforced self-compacting concrete

Cited by 66 publications

References 27 publications

Fuzzy logic model for investigating the effect of steel fibers on mechanical properties of concrete

Fuzzy logic model for investigating the effect of steel fibers on mechanical properties of concrete

Effect of Short Fiber Reinforcements on Fracture Performance of Cement-Based Materials: A Systematic Review Approach

Novel percolation‐based measure for fiber efficacy in fiber‐reinforced concrete beams

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