Distribution and Orientation of Fibers in Steel Fiber

On the prediction of the orientation factor and fibre distribution ...

The model predicts the distribution and the number of fibres crossing a vertical cut. •. The proposed model was verified for steel and synthetic fibres. •. The ... by MG Alberti · ‎2017 · ‎Cited by 59 · ‎Related articles

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PDF Effects of Fiber Length and Fiber Orientation ...

fiber orientation distribution are included in eqn (12). Thus eqn (12) is a suitable probability density function for describing the fiber orientation distribution and will be used in the present study. The mean fiber orientation, e,,,,, can be derived

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SCC flow induced steel fiber distribution and orientation ...

concrete structure including steel fiber. Data processing allows to assess the amount of plastic or steel fibers as well as it’s distribution and orientation. However, CT scan requires additional time-consuming data post processing. Traditional cross section image analysis or software based post processing technique could be used.

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(PDF) Study of the distribution and orientation of fibers ...

Per the destructive method, the orientation and distribution of steel fibers are analyzed via measurement of the steel fibers in a cross section of the specimens [32,33]. R.

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MOOC FRC 1.2: Orientation and distribution of fibres - YouTube

9:23 That is to say, here we will talk about the distribution and orientation of fib... ... For both steel and polyolefin ... Jul 10, 2017 · Uploaded by UPM

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Effects of concrete flow on the distribution and orientation of …

To investigate the fiber distribution and orientation within the specimens, the fibers are measured and counted from the 2D X-ray images; this fiber counting process is illustrated in Fig. 8. Before the fiber counting, the X-ray images of each specimen were calibrated using the Image Pro-Plus software [70] .

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Spatial distribution of synthetic fibers in concrete with X-ray …

Several techniques have been used in the past to quantify the distribution and orientation of steel fibers within concrete. For quantifying dispersion of synthetic fibers within concrete, a non-destructive technique using X-ray computed tomography (CT) combined with a …

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Effect of Distribution and Orientation of Steel Fiber ...

Key-words: Steel fiber, Reinforced concrete, Vibration, Distribution function, Steel orientation . 1 Introduction Fibers are usually used in concrete to control cracking due to both plastic shrinkage and drying shrinkage. If the modulus of elasticity of the fiber is higher than the matrix (concrete or mortar

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Bonding Mechanisms and Strength of Steel Fiber–Reinforced ...

Jump to Fiber Orientation — Different factors affecting the bond strength include geometry, orientation and embedded length of fiber as well as matrix strength. by S Abdallah · ‎2018 · ‎Cited by 37 · ‎Related articles

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Study of the Effect of Fibre Orientation on Artificially Directed ...

For directionally distributed steel fibre-reinforced concrete, the direction and distribution uniformity of the fibres are even more important. In the following contents, ... by FY Li · ‎Cited by 9 · ‎Related articles

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PDF Nondestructive Detection of Steel Fibers in Concrete

say, inadequate fiber orientation. Thermography Thermography is a promising nondestructive testing method for determining the actual distribution and orientation of steel fibers in concrete, and can be integrated into production processes. Using this imaging technique, an object's spatially resolved temperature distribution is made visible near

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Speedy analysis of steel fiber reinforced concrete | News ...

Steel fiber reinforced concrete (SFRC) is a practical construction material that is quick ... for simply and reliably analyzing the distribution of fibers in the concrete. ... pixel represents part of a steel fiber, and calculates the orientation of that fiber.

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Effect of Distribution and Orientation of Fibers on the Post ...

Sep 21, 2020 · In this work, an experimental investigation focused on the distribution and orientation of fibers on the post-cracking behavior of Steel Fiber Reinforced Self-Compacting Concrete (SFRSCC) to cast...

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Influence of fibre orientation on the performance of steel fibre ...

Influence of fibre orientation on the performance of steel fibre-reinforced concrete ... orientation of fibres in a structure can differ from the homogenous distribution ... by S Grünewald · ‎Cited by 10 · ‎Related articles

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The Elastic Modulus of Steel Fiber Reinforced Concrete (SFRC) with Random Distribution of Aggregate and Fiber

Random sampling principle of Monte Carlo's simulation method has been used to generate the random size, orientation, and position of aggregate particles as well as steel fibers in concrete matrix. A total of 2100 two-dimensional and three-dimensional cube specimens (150 mm) with varying volume fractions of aggregate and fiber have been randomly generated.

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Evaluation of orientation and distribution of steel fibers ...

This study investigated the orientation and distribution of steel fibers within high-performance concrete (HPC) column via micro-computed tomography (…

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Study of the distribution and orientation of fibers in ...

Study of the distribution and orientation of fibers in SFRC specimens Study of the distribution and orientation of fibers in SFRC specimens Gettu, R.; Gardner, D.; Saldívar, H.; Barragán, B. 2006-08-05 00:00:00 In steel fiber reinforced concrete (SFRC), the fibers are generally considered to be oriented isotropically. However, it is known that the procedures used in the specimen fabrication ...

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Understanding the influence of fiber orientation on structural analysis of fiber …

When fibers are added, both plasticity and rupture loads are influenced by fiber orientation and loading direction. This is illustrated in the tensile test results shown in Fig. 3, where all three load directions show significant plastic response prior to rupture, but the stiffness and strength of the material show high dependence on the relative fiber direction.

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Distribution and orientation of steel fibres in steel fibre ...

Aug 19, 2016 — Distribution and orientation of steel fibres in steel fibre reinforced concrete. Research output: Chapter in Book/Report/Conference proceeding ... by O Ige · ‎2016 · ‎Related articles

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Influence of Fiber Distribution and Orientation in the Fracture ...

Jan 10, 2019 — Polyolefin fiber-reinforced concrete (PFRC) has become an attractive alternative to steel for the reinforcement of concrete elements, mainly due ... by A Enfedaque · ‎2019 · ‎Cited by 6 · ‎Related articles

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Assessment of fiber distribution in steel fiber mortar using ...

A new test method was introduced to measure fiber distribution in steel fiber reinforced mortar by using image analysis technique. Through specimen preparation, image acquisition, fiber extraction, and measurement of related fiber parameters, quantitative analysis of fiber distribution could be obtained by two parameters, namely dispersion coefficient and orientation factor.

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Three‐dimensional modeling of the distribution and orientation of …

The objective of this study is to propose a new method capable of predicting the variation of the distribution and orientation of steel fibers immersed in the SCC during flow. The flow of the steel fiber reinforced SCC is simulated by a computational fluid dynamics software, in which the volume of fluid method is used to track the free surface of concrete.

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Three-Dimensional Fiber Segment Orientation Distribution ...

May 01, 2014 · Fiber segment orientation distributions were extracted from volumetric X-ray microtomography data sets of hydroentangled nonwoven fabrics manufactured from parallel-laid, cross-laid, and air-laid webs. Spherical coordinates represented the orientation of individual fibers.

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Numerical prediction of steel fiber orientation and distribution

•Fibers orient due to the flow of the SCC –Dependent on formwork type –Knowledge of the casting process is required (rheology, type of filling, surface of the formwork … ) •We are able to predict the final orientation and distribution of fibers •Future work: –Relation between •Fiber orientation (i.e. fiber

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(PDF) Electromagnetic quality control of steel fiber concrete ...

The fiber distribution in the concrete matrix, The inclusion of even small amounts of fibers in concrete mix- especially the orientation, significantly affects its ...

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Effect of distribution and orientation of steel fiber reinforced ...

PDF | Some analytical and experimental investigations were done on the arrangement and orientation of fibers in steel fiber reinforced concrete (SFRC)... | Find ...

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Study of Electrospinning Parameters and Collection Methods on Size Distribution and Orientation of PLA/PBS Hybrid Fiber …

2018/12/1 · The stationary flat collector with a swaying needle and fast rotating drum disc with a stationary needle were used for the fiber alignment. In order to improve the size distribution and the orientation of the hybrid fibers it is proposed that the fibers should be collected on the rotary drum disc at 700 rpm or higher speed.

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How to predict the orientation factor of non-rigid ... - IOPscience

behaviour analogous of those of steel fibre reinforced concrete (SFRC) have become an ... coupled value of the orientation and the distribution of the fibres. by MG Alberti · ‎2017 · ‎Cited by 1 · ‎Related articles

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Study of the distribution and orientation of fibers in SFRC ...

In steel fiber reinforced concrete (SFRC), the fibers are generally considered to be oriented isotropically. However, it is known that the procedures used in the specimen fabrication during quality control and material characterization may influence the distribution of the fibers significantly. This has an important effect on the properties determined from the specimens, which has to be ...

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