Crack Widths During Sustained Flexural Loading of Small-Scale GFRP Reinforced Concrete Beams

Small-scale concrete beams reinforced with steel bars and glass fiber reinforced polymer (GFRP) bars manu-factured with either thermoplastic or thermoset matrix materials were subjected to sustained flexural loadings while flexural crack widths were monitored. Separate sets of beams were kept under load at temperatures of 23 and 60 deg. C for time periods of 10 and 3 months, respectively. A nondimensional bond parameter that is considered to be independent of bar modulus and reflective of the tendency for bond slip was fit to the time dependent crack width data and used to compare time dependent bond behavior of the three bars. The thermo-plastic GFRP bar demonstrated the highest or nearly the highest bond slip at both test temperatures and the least variation in bond slip with temperature. The thermoset GFRP bar had the least bond slip at both test temperatures. All three types of bar had increased bond slip at the higher test temperature.

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Work Title Crack Widths During Sustained Flexural Loading of Small-Scale GFRP Reinforced Concrete Beams
Access
Open Access
Creators Charles E Bakis; Matthew A Ogden
Version number 2
Keyword GFRP reinforced concrete; crack width; sustained loading; temperature effect
License Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)
Work Type Conference Proceeding
Publisher Balkema Publishers
Publication Date December 8, 2004
Subject Structural Engineering
Language English
Geographic Area United States
Source Proc. FRP Composites in Civil Engineering (CISE 2004), R. Seracino, Ed., Balkema Publishers, Leiden, 2004, pp. 773-780. ISBN 90-5809-638-6.
Deposited February 14, 2021 14:06

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Work History

Version 1
published

  • Created
  • Added Creator Charles E Bakis
  • Added BAKCWS.pdf
  • Updated Keyword, Description, License Show Changes
    Keyword
    • GFRP reinforced concrete, crack width, sustained loading
    • GFRP reinforced concrete, crack width, sustained loading, temperature effect
    Description
    • Small-scale concrete beams reinforced with steel bars and glass fiber reinforced polymer (GFRP) bars manu-factured with either thermoplastic or thermoset matrix materials were subjected to sustained flexural loadings while flexural crack widths were monitored. Separate sets of beams were kept under load at temperatures of 23 and 60C for time periods of 10 and 3 months, respectively. A nondimensional bond parameter that is considered to be independent of bar modulus and reflective of the tendency for bond slip was fit to the time dependent crack width data and used to compare time dependent bond behavior of the three bars. The thermo-plastic GFRP bar demonstrated the highest or nearly the highest bond slip at both test temperatures and the least variation in bond slip with temperature. The thermoset GFRP bar had the least bond slip at both test temperatures. All three types of bar had increased bond slip at the higher test temperature.
    • Small-scale concrete beams reinforced with steel bars and glass fiber reinforced polymer (GFRP) bars manu-factured with either thermoplastic or thermoset matrix materials were subjected to sustained flexural loadings while flexural crack widths were monitored. Separate sets of beams were kept under load at temperatures of 23 and 60 deg. C for time periods of 10 and 3 months, respectively. A nondimensional bond parameter that is considered to be independent of bar modulus and reflective of the tendency for bond slip was fit to the time dependent crack width data and used to compare time dependent bond behavior of the three bars. The thermo-plastic GFRP bar demonstrated the highest or nearly the highest bond slip at both test temperatures and the least variation in bond slip with temperature. The thermoset GFRP bar had the least bond slip at both test temperatures. All three types of bar had increased bond slip at the higher test temperature.
    License
    • https://creativecommons.org/licenses/by-nc-nd/4.0/
  • Published

Version 2
published

  • Created
  • Added Creator Matthew A Ogden
  • Updated Source, Subtitle Show Changes
    Source
    • Proc. FRP Composites in Civil Engineering (CISE 2004), R. Seracino, Ed., Balkema Publishers, Leiden, 2004, pp. 773-780. ISBN 90-5809-638-6.
    Subtitle
    • Proc. FRP Composites in Civil Engineering (CISE 2004), R. Seracino, Ed., Balkema Publishers, Leiden, 2004, pp. 773-780. ISBN 90-5809-638-6.
  • Published