Effect of fiber length in extruded and cast cement composites

A. Peled; Y. Akkaya; S. P. Shah

Effect of fiber length in extruded and cast cement composites

A. Peled, Y. Akkaya, S. P. Shah

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

8 Citations (Scopus)

Abstract

The influence of fiber length on tension and flexural behavior of extruded and cast cement composites was examined for PVA (hydrophilic) fibers and polypropylene (hydrophobic) fibers. The fiber-matrix interface, fiber surface, and microstructure of the composite cross-section were characterized by SEM. Opposite trends were obtained for the cast and extruded composites with increasing fiber length. For the extruded composites, decreasing fiber length increased flexural and tensile response, whereas for the cast composites increasing the fiber length increased the flexural and tensile response. These differences were found to be a result of differences in fiber-matrix bond properties and fiber distribution. The extruded composites showed a stronger fiber-matrix bond compared to the cast composites. This led to differences in the fiber failure mechanism: fiber rupture of the 6mm fibers in the extruded composite, and fiber pullout of both fiber lengths in the cast composites and for the 2mm fibers in the extruded composites.

Original language	English
Title of host publication	High-Performance Fiber-Reinforced Concrete Thin Sheet Products
Editors	Alva Peled, Surendra P. Shah, Nemkumar Banthia
Publisher	American Concrete Institute
Pages	1-19
Number of pages	19
ISBN (Electronic)	9780870316890
Publication status	Published - 1 Apr 2000
Externally published	Yes
Event	High-Performance Fiber-Reinforced Concrete Thin Sheet Products 1999 - Chicago, United States Duration: 14 Mar 1999 → 19 Mar 1999

Publication series

Name	American Concrete Institute, ACI Special Publication
Volume	SP-190
ISSN (Print)	0193-2527

Conference

Conference	High-Performance Fiber-Reinforced Concrete Thin Sheet Products 1999
Country/Territory	United States
City	Chicago
Period	14/03/99 → 19/03/99

Bibliographical note

Publisher Copyright:
© 2000 American Concrete Institute. All rights reserved.

Funding

The authors gratefully acknowledge the financial support of the illinois Clean Coal Institute and the project manager Dr. Daniel D. Banerjee,

Funders	Funder number
Clean Coal

Keywords

Bond
Cement composite
Extrusion
Fiber length
Fiber-matrix inferface
PVA fibers
Polypropylene fibers
Reinforcement

Cite this

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title = "Effect of fiber length in extruded and cast cement composites",

abstract = "The influence of fiber length on tension and flexural behavior of extruded and cast cement composites was examined for PVA (hydrophilic) fibers and polypropylene (hydrophobic) fibers. The fiber-matrix interface, fiber surface, and microstructure of the composite cross-section were characterized by SEM. Opposite trends were obtained for the cast and extruded composites with increasing fiber length. For the extruded composites, decreasing fiber length increased flexural and tensile response, whereas for the cast composites increasing the fiber length increased the flexural and tensile response. These differences were found to be a result of differences in fiber-matrix bond properties and fiber distribution. The extruded composites showed a stronger fiber-matrix bond compared to the cast composites. This led to differences in the fiber failure mechanism: fiber rupture of the 6mm fibers in the extruded composite, and fiber pullout of both fiber lengths in the cast composites and for the 2mm fibers in the extruded composites.",

keywords = "Bond, Cement composite, Extrusion, Fiber length, Fiber-matrix inferface, PVA fibers, Polypropylene fibers, Reinforcement",

author = "A. Peled and Y. Akkaya and Shah, {S. P.}",

note = "Publisher Copyright: {\textcopyright} 2000 American Concrete Institute. All rights reserved.; High-Performance Fiber-Reinforced Concrete Thin Sheet Products 1999 ; Conference date: 14-03-1999 Through 19-03-1999",

year = "2000",

month = apr,

day = "1",

language = "English",

series = "American Concrete Institute, ACI Special Publication",

publisher = "American Concrete Institute",

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editor = "Alva Peled and Shah, {Surendra P.} and Nemkumar Banthia",

booktitle = "High-Performance Fiber-Reinforced Concrete Thin Sheet Products",

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Peled, A, Akkaya, Y & Shah, SP 2000, Effect of fiber length in extruded and cast cement composites. in A Peled, SP Shah & N Banthia (eds), High-Performance Fiber-Reinforced Concrete Thin Sheet Products. American Concrete Institute, ACI Special Publication, vol. SP-190, American Concrete Institute, pp. 1-19, High-Performance Fiber-Reinforced Concrete Thin Sheet Products 1999, Chicago, United States, 14/03/99.

Effect of fiber length in extruded and cast cement composites. / Peled, A.; Akkaya, Y.; Shah, S. P.
High-Performance Fiber-Reinforced Concrete Thin Sheet Products. ed. / Alva Peled; Surendra P. Shah; Nemkumar Banthia. American Concrete Institute, 2000. p. 1-19 (American Concrete Institute, ACI Special Publication; Vol. SP-190).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Effect of fiber length in extruded and cast cement composites

AU - Peled, A.

AU - Akkaya, Y.

AU - Shah, S. P.

PY - 2000/4/1

Y1 - 2000/4/1

N2 - The influence of fiber length on tension and flexural behavior of extruded and cast cement composites was examined for PVA (hydrophilic) fibers and polypropylene (hydrophobic) fibers. The fiber-matrix interface, fiber surface, and microstructure of the composite cross-section were characterized by SEM. Opposite trends were obtained for the cast and extruded composites with increasing fiber length. For the extruded composites, decreasing fiber length increased flexural and tensile response, whereas for the cast composites increasing the fiber length increased the flexural and tensile response. These differences were found to be a result of differences in fiber-matrix bond properties and fiber distribution. The extruded composites showed a stronger fiber-matrix bond compared to the cast composites. This led to differences in the fiber failure mechanism: fiber rupture of the 6mm fibers in the extruded composite, and fiber pullout of both fiber lengths in the cast composites and for the 2mm fibers in the extruded composites.

AB - The influence of fiber length on tension and flexural behavior of extruded and cast cement composites was examined for PVA (hydrophilic) fibers and polypropylene (hydrophobic) fibers. The fiber-matrix interface, fiber surface, and microstructure of the composite cross-section were characterized by SEM. Opposite trends were obtained for the cast and extruded composites with increasing fiber length. For the extruded composites, decreasing fiber length increased flexural and tensile response, whereas for the cast composites increasing the fiber length increased the flexural and tensile response. These differences were found to be a result of differences in fiber-matrix bond properties and fiber distribution. The extruded composites showed a stronger fiber-matrix bond compared to the cast composites. This led to differences in the fiber failure mechanism: fiber rupture of the 6mm fibers in the extruded composite, and fiber pullout of both fiber lengths in the cast composites and for the 2mm fibers in the extruded composites.

KW - Bond

KW - Cement composite

KW - Extrusion

KW - Fiber length

KW - Fiber-matrix inferface

KW - PVA fibers

KW - Polypropylene fibers

KW - Reinforcement

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T3 - American Concrete Institute, ACI Special Publication

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BT - High-Performance Fiber-Reinforced Concrete Thin Sheet Products

A2 - Peled, Alva

A2 - Shah, Surendra P.

A2 - Banthia, Nemkumar

PB - American Concrete Institute

T2 - High-Performance Fiber-Reinforced Concrete Thin Sheet Products 1999

Y2 - 14 March 1999 through 19 March 1999

ER -

Effect of fiber length in extruded and cast cement composites

Abstract

Publication series

Conference

Bibliographical note

Funding

Keywords

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