Computers and Concrete

  • 제6권5호
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  • Pages.421-435
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  • 2009
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  • 1598-8198(pISSN)
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  • 1598-818X(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Simulation of chloride penetration into concrete structures subjected to both cyclic flexural loads and tidal effects

  • 투고 : 2007.11.14
  • 심사 : 2009.08.25
  • 발행 : 2009.10.25
⟨ 이전 논문 다음 논문 ⟩

초록

Chloride induced corrosion is a concern that governs the durability of concrete structures in marine environments, especially in tidal environments. During the service lives of concrete structures, internal cracks in the concrete cover may appear due to imposed loads, accelerating chloride penetration because of the simultaneous action of environmental and service structural loads. This paper investigated the effects of cyclic flexural loads on chloride diffusion characteristics of plain concretes, and proposed a model to predict the chloride penetration into plain concretes subjected to both tidal environments and different cyclic flexural load levels. Further, a new experiment was performed to verify the model. Results of the model using Finite Difference Method (FDM) showed that the durability of concretes in tidal environments was reduced as cyclic flexural load levels, SR, increased, and the modeling results fitted well with the experimental results.

키워드

참고문헌

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  1. Prediction of chloride diffusion coefficient of concrete under flexural cyclic load vol.8, pp.3, 2011, https://doi.org/10.12989/cac.2011.8.3.343
  2. Mesoscale simulation of chloride diffusion in concrete considering the binding capacity and concentration dependence vol.8, pp.2, 2011, https://doi.org/10.12989/cac.2011.8.2.125
  3. Influence of flexural loading on chloride ingress in concrete subjected to cyclic drying-wetting condition vol.15, pp.2, 2015, https://doi.org/10.12989/cac.2015.15.2.183
  4. Application of a New Anchorage towards the Flexural Strengthening of RC Rectangular Beams with External Steel Tendons vol.6, pp.12, 2016, https://doi.org/10.3390/app6050119
  5. Prediction of chloride binding isotherms for blended cements vol.17, pp.5, 2016, https://doi.org/10.12989/cac.2016.17.5.655
  6. Chloride penetration in concrete exposed to cyclic drying-wetting and carbonation vol.112, 2016, https://doi.org/10.1016/j.conbuildmat.2016.02.194
  7. Chloride penetration into concrete damaged by uniaxial tensile fatigue loading vol.125, 2016, https://doi.org/10.1016/j.conbuildmat.2016.08.096
  8. Chloride binding isotherms of various cements basing on binding capacity of hydrates vol.13, pp.6, 2014, https://doi.org/10.12989/cac.2014.13.6.695
  9. Effect of bonded lengths and wrappings on energy capacity and debonding strain of reinforced concrete beams strengthened with carbon-fiber-reinforced polymer vol.38, pp.7, 2017, https://doi.org/10.1002/pc.23709
  10. One and two dimensional chloride ion diffusion of fly ash concrete under flexural stress vol.12, pp.9, 2011, https://doi.org/10.1631/jzus.A1100006
  11. Transport model of chloride ions in concrete under loads and drying-wetting cycles vol.112, 2016, https://doi.org/10.1016/j.conbuildmat.2016.02.167
  12. Chloride Transport in Concrete under Flexural Loads in a Tidal Environment vol.30, pp.11, 2018, https://doi.org/10.1061/(ASCE)MT.1943-5533.0002493
  13. Accelerated Corrosion Behavior of Steel in Concrete Subjected to Sustained Flexural Loading Using Electrochemical Methods and X-Ray Computed Tomography vol.30, pp.7, 2018, https://doi.org/10.1061/(ASCE)MT.1943-5533.0002337
  14. Chloride diffusion assessment in RC structures considering the stress-strain state effects and crack width influences vol.201, pp.None, 2009, https://doi.org/10.1016/j.conbuildmat.2018.12.166
  15. Computer modeling to forecast accurate of efficiency parameters of different size of graphene platelet, carbon, and boron nitride nanotubes: A molecular dynamics simulation vol.27, pp.2, 2009, https://doi.org/10.12989/cac.2021.27.2.111