Axial behavior of ferrocement confined cylindrical concrete specimens with different sizes

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8 Citations (Scopus)

Abstract

This paper presents an experimental study on the axial behavior of ferrocement confined cylindrical concrete specimens. The present study also intends to investigate the effect of specimen size on the confinement action of ferrocement jacket. Three types of 27 concrete cylinders with diameters of 150, 100, and 75 mm are cast and tested under axial compression. Each type of specimens is confined with single layer and double layer welded wire mesh ferrocement jacket having a constant thickness of the jacket. The experimental results demonstrate the effectiveness of ferrocement confinement in enhancing the strength, ductility and energy absorption capacity of concrete specimens. The confinement action is found more effective in case of smaller specimens. A post-peak descending branch in the axial stress-strain curve is observed in all the confined specimens. The stress-strain behavior and the failure pattern indicate that single layer mesh ferrocement jacket cannot provide significant confinement; at-least two layer mesh is required for substantial confinement. A new analytical model for the strength of ferrocement confined circular concrete specimen is proposed based on the test results of this work and verified with the recent experimental data obtained from the literature.

Original languageEnglish
Pages (from-to)50-59
Number of pages10
JournalConstruction and Building Materials
Volume78
DOIs
Publication statusPublished - 1 Mar 2015

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Reinforced concrete
Concretes
Axial compression
Energy absorption
Stress-strain curves
Ductility
Analytical models
Wire

Keywords

  • Concrete cylinders
  • Ferrocement
  • Size effect
  • Strength model
  • Wire mesh

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Materials Science(all)

Cite this

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title = "Axial behavior of ferrocement confined cylindrical concrete specimens with different sizes",
abstract = "This paper presents an experimental study on the axial behavior of ferrocement confined cylindrical concrete specimens. The present study also intends to investigate the effect of specimen size on the confinement action of ferrocement jacket. Three types of 27 concrete cylinders with diameters of 150, 100, and 75 mm are cast and tested under axial compression. Each type of specimens is confined with single layer and double layer welded wire mesh ferrocement jacket having a constant thickness of the jacket. The experimental results demonstrate the effectiveness of ferrocement confinement in enhancing the strength, ductility and energy absorption capacity of concrete specimens. The confinement action is found more effective in case of smaller specimens. A post-peak descending branch in the axial stress-strain curve is observed in all the confined specimens. The stress-strain behavior and the failure pattern indicate that single layer mesh ferrocement jacket cannot provide significant confinement; at-least two layer mesh is required for substantial confinement. A new analytical model for the strength of ferrocement confined circular concrete specimen is proposed based on the test results of this work and verified with the recent experimental data obtained from the literature.",
keywords = "Concrete cylinders, Ferrocement, Size effect, Strength model, Wire mesh",
author = "Kaish, {A. B M A} and Maslina Jamil and Raman, {Sudharshan Naidu} and {Mohd. Zain}, {Muhammad Fauzi}",
year = "2015",
month = "3",
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T1 - Axial behavior of ferrocement confined cylindrical concrete specimens with different sizes

AU - Kaish, A. B M A

AU - Jamil, Maslina

AU - Raman, Sudharshan Naidu

AU - Mohd. Zain, Muhammad Fauzi

PY - 2015/3/1

Y1 - 2015/3/1

N2 - This paper presents an experimental study on the axial behavior of ferrocement confined cylindrical concrete specimens. The present study also intends to investigate the effect of specimen size on the confinement action of ferrocement jacket. Three types of 27 concrete cylinders with diameters of 150, 100, and 75 mm are cast and tested under axial compression. Each type of specimens is confined with single layer and double layer welded wire mesh ferrocement jacket having a constant thickness of the jacket. The experimental results demonstrate the effectiveness of ferrocement confinement in enhancing the strength, ductility and energy absorption capacity of concrete specimens. The confinement action is found more effective in case of smaller specimens. A post-peak descending branch in the axial stress-strain curve is observed in all the confined specimens. The stress-strain behavior and the failure pattern indicate that single layer mesh ferrocement jacket cannot provide significant confinement; at-least two layer mesh is required for substantial confinement. A new analytical model for the strength of ferrocement confined circular concrete specimen is proposed based on the test results of this work and verified with the recent experimental data obtained from the literature.

AB - This paper presents an experimental study on the axial behavior of ferrocement confined cylindrical concrete specimens. The present study also intends to investigate the effect of specimen size on the confinement action of ferrocement jacket. Three types of 27 concrete cylinders with diameters of 150, 100, and 75 mm are cast and tested under axial compression. Each type of specimens is confined with single layer and double layer welded wire mesh ferrocement jacket having a constant thickness of the jacket. The experimental results demonstrate the effectiveness of ferrocement confinement in enhancing the strength, ductility and energy absorption capacity of concrete specimens. The confinement action is found more effective in case of smaller specimens. A post-peak descending branch in the axial stress-strain curve is observed in all the confined specimens. The stress-strain behavior and the failure pattern indicate that single layer mesh ferrocement jacket cannot provide significant confinement; at-least two layer mesh is required for substantial confinement. A new analytical model for the strength of ferrocement confined circular concrete specimen is proposed based on the test results of this work and verified with the recent experimental data obtained from the literature.

KW - Concrete cylinders

KW - Ferrocement

KW - Size effect

KW - Strength model

KW - Wire mesh

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