20 Citations (Scopus)

Abstract

This papers addresses the disparities that exist in measuring the constitutive properties of thin section cement composites using a combination of tensile and flexural tests. It is shown that when the test results are analyzed using a simplified linear analysis, the variability between the results of tensile and flexural strength can be as high as 200-300%. Experimental results of tension and flexural tests of laminated Textile Reinforced Concrete (TRC) composites with alkali resistant (AR) glass, carbon, aramid, polypropylene textile fabrics, and a hybrid reinforcing system with aramid and polypropylene are presented. Correlation of material properties is studied analytically using a parametric model for simulation of flexural behavior using a closed form solution based on tensile stress-strain constitutive relation. The flexural load carrying capacity of TRC composites is computed using a back-calculation approach, and parameters for a strain hardening material model are obtained using the closed form equations. While the parametric model over predicts the simulated tensile response for carbon and polypropylene TRCs, predictions are however consistent with experimental trends for aramid and glass TRCs. Detailed discussion of the differences between backcalculated and experimental tensile properties is presented. Results can be implemented as average moment-curvature relationship in the structural design and analysis of cement composites.

Original languageEnglish (US)
Pages (from-to)148-161
Number of pages14
JournalCement and Concrete Composites
Volume53
DOIs
StatePublished - 2014

Fingerprint

Reinforced concrete
Polypropylenes
Textiles
Composite materials
Cements
Carbon
Glass
Alkalies
Load limits
Hybrid systems
Structural design
Tensile properties
Strain hardening
Structural analysis
Tensile stress
Bending strength
Materials properties
Tensile strength

Keywords

  • Alkali resistant glass fibers
  • Aramid fibers
  • Back-calculation
  • Beams
  • Carbon fibers
  • Cracking
  • Ductility
  • Fiber reinforced concrete
  • Fibers
  • Flexural tests
  • High-strength concrete
  • Polypropylene fibers
  • Stress-strain
  • Tension tests
  • Textile reinforced concrete
  • Toughness

ASJC Scopus subject areas

  • Materials Science(all)
  • Building and Construction

Cite this

Correlation of constitutive response of hybrid textile reinforced concrete from tensile and flexural tests. / Mobasher, Barzin; Dey, Vikram; Cohen, Zvi; Peled, Alva.

In: Cement and Concrete Composites, Vol. 53, 2014, p. 148-161.

Research output: Contribution to journalArticle

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abstract = "This papers addresses the disparities that exist in measuring the constitutive properties of thin section cement composites using a combination of tensile and flexural tests. It is shown that when the test results are analyzed using a simplified linear analysis, the variability between the results of tensile and flexural strength can be as high as 200-300{\%}. Experimental results of tension and flexural tests of laminated Textile Reinforced Concrete (TRC) composites with alkali resistant (AR) glass, carbon, aramid, polypropylene textile fabrics, and a hybrid reinforcing system with aramid and polypropylene are presented. Correlation of material properties is studied analytically using a parametric model for simulation of flexural behavior using a closed form solution based on tensile stress-strain constitutive relation. The flexural load carrying capacity of TRC composites is computed using a back-calculation approach, and parameters for a strain hardening material model are obtained using the closed form equations. While the parametric model over predicts the simulated tensile response for carbon and polypropylene TRCs, predictions are however consistent with experimental trends for aramid and glass TRCs. Detailed discussion of the differences between backcalculated and experimental tensile properties is presented. Results can be implemented as average moment-curvature relationship in the structural design and analysis of cement composites.",
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AU - Mobasher, Barzin

AU - Dey, Vikram

AU - Cohen, Zvi

AU - Peled, Alva

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N2 - This papers addresses the disparities that exist in measuring the constitutive properties of thin section cement composites using a combination of tensile and flexural tests. It is shown that when the test results are analyzed using a simplified linear analysis, the variability between the results of tensile and flexural strength can be as high as 200-300%. Experimental results of tension and flexural tests of laminated Textile Reinforced Concrete (TRC) composites with alkali resistant (AR) glass, carbon, aramid, polypropylene textile fabrics, and a hybrid reinforcing system with aramid and polypropylene are presented. Correlation of material properties is studied analytically using a parametric model for simulation of flexural behavior using a closed form solution based on tensile stress-strain constitutive relation. The flexural load carrying capacity of TRC composites is computed using a back-calculation approach, and parameters for a strain hardening material model are obtained using the closed form equations. While the parametric model over predicts the simulated tensile response for carbon and polypropylene TRCs, predictions are however consistent with experimental trends for aramid and glass TRCs. Detailed discussion of the differences between backcalculated and experimental tensile properties is presented. Results can be implemented as average moment-curvature relationship in the structural design and analysis of cement composites.

AB - This papers addresses the disparities that exist in measuring the constitutive properties of thin section cement composites using a combination of tensile and flexural tests. It is shown that when the test results are analyzed using a simplified linear analysis, the variability between the results of tensile and flexural strength can be as high as 200-300%. Experimental results of tension and flexural tests of laminated Textile Reinforced Concrete (TRC) composites with alkali resistant (AR) glass, carbon, aramid, polypropylene textile fabrics, and a hybrid reinforcing system with aramid and polypropylene are presented. Correlation of material properties is studied analytically using a parametric model for simulation of flexural behavior using a closed form solution based on tensile stress-strain constitutive relation. The flexural load carrying capacity of TRC composites is computed using a back-calculation approach, and parameters for a strain hardening material model are obtained using the closed form equations. While the parametric model over predicts the simulated tensile response for carbon and polypropylene TRCs, predictions are however consistent with experimental trends for aramid and glass TRCs. Detailed discussion of the differences between backcalculated and experimental tensile properties is presented. Results can be implemented as average moment-curvature relationship in the structural design and analysis of cement composites.

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KW - Aramid fibers

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KW - Carbon fibers

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KW - Fiber reinforced concrete

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KW - Flexural tests

KW - High-strength concrete

KW - Polypropylene fibers

KW - Stress-strain

KW - Tension tests

KW - Textile reinforced concrete

KW - Toughness

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