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      Orientation of Steel Fibers in Magnetically Driven Concrete and Mortar

      research-article
      1 , 2 , * , 3 , 4
      Materials
      MDPI
      concrete, magnetic force, mortar, orientation, steel fiber

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          Abstract

          The orientation of steel fibers in magnetically driven concrete and magnetically driven mortar was experimentally studied in this paper using a magnetic method. In the magnetically driven concrete, a steel slag was used to replace the coarse aggregate. In the magnetically driven mortar, steel slag and iron sand were used to replace the fine aggregate. A device was established to provide the magnetic force. The magnetic force was used to rotate the steel fibers. In addition, the magnetic force was also used to vibrate the concrete and mortar. The effect of magnetic force on the orientation of steel fibers was examined by comparing the direction of fibers before and after vibration. The effect of magnetically driven concrete and mortar on the orientation of steel fibers was also examined by comparing specimens to normal concrete and mortar. It is shown that the fibers could rotate about 90° in magnetically driven concrete. It is also shown that the number of fibers rotated in magnetically driven mortar was much more than in mortar vibrated using a shaking table. A splitting test was performed on concrete specimens to investigate the effect of fiber orientation. In addition, a flexural test was also performed on mortar test specimens. It is shown that the orientation of the steel fibers in magnetically driven concrete and mortar affects the strength of the concrete and mortar specimens.

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          Most cited references18

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          The relation between fiber orientation and tensile behavior in an Ultra High Performance Fiber Reinforced Cementitious Composites (UHPFRCC)

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            Effect of fiber length and placement method on flexural behavior, tension-softening curve, and fiber distribution characteristics of UHPFRC

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              The effect of fibre distribution characteristics on the flexural strength of steel fibre-reinforced ultra high strength concrete

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                Author and article information

                Journal
                Materials (Basel)
                Materials (Basel)
                materials
                Materials
                MDPI
                1996-1944
                22 January 2018
                January 2018
                : 11
                : 1
                : 170
                Affiliations
                [1 ]School of Civil Engineering and Architecture, Zhejiang University of Science and Technology, Hangzhou 310023, China; xuewen@ 123456zzust.edu.cn
                [2 ]Department of Civil Engineering, Zhejiang University, Hangzhou 310058, China
                [3 ]Faculty of Mechanical Engineering & Mechanics, Ningbo University, Ningbo 315211, China; Xiefangyp@ 123456163.com
                [4 ]Shaoxing Electric Power Bureau, Shaoxing 312000, China; zepeifb@ 123456163.com
                Author notes
                [* ]Correspondence: cecj@ 123456zju.edu.cn ; Tel.: +86-135-8803-6606
                Article
                materials-11-00170
                10.3390/ma11010170
                5793668
                29361798
                e8cd11c9-8c8a-4196-89db-433f4322723d
                © 2018 by the authors.

                Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license ( http://creativecommons.org/licenses/by/4.0/).

                History
                : 13 December 2017
                : 16 January 2018
                Categories
                Article

                concrete,magnetic force,mortar,orientation,steel fiber
                concrete, magnetic force, mortar, orientation, steel fiber

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