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Sensitivity Analysis for Durability of High Performance Concrete Containing Nano-particles based on Grey Relational Grade

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  • Xiaohang Wei
  • Peng Zhang

Abstract

There are many effect factors of mix proportion on anti-permeability and anti-freezing durability of high performance concrete containing nano-particles, such as the dosage of cement, nanomaterials, mineral fine admixture, chemical admixture and the value of water-binder ratio and sand ratio. The aim of this study was to evaluate the effect of these effect factors on durability of high performance concrete containing nano-particles and find out the main factors. Applying grey relational analysis method, the relational grades between the effect factors and diffusion coefficient of Cl-, and the relational grades between the effect factors and anti-freezing durability coefficient of high performance concrete containing nano-particles were calculated. Besides, the sequence results of influencing degree of the factors to affect the anti-permeability and freezing-thawing resistance were obtained. The results indicate that water-binder ratio, dosage of cement and dosage of nano- particles have the greatest influence on chloride permeability and freeze-thaw resistance of high performance concrete containing nano- particles among the 7 selected parameters of design of mix proportion. In order to improve anti-permeability of Cl- and freeze-thaw resistance of high performance concrete containing nano-particles, water-binder ratio, the dosage of cement and nano-materials must be controlled strictly. It had better decrease water-binder ratio and the dosage of cement, besides increase the dosage of nano-materials.

Suggested Citation

  • Xiaohang Wei & Peng Zhang, 2011. "Sensitivity Analysis for Durability of High Performance Concrete Containing Nano-particles based on Grey Relational Grade," Modern Applied Science, Canadian Center of Science and Education, vol. 5(4), pages 1-68, August.
    • Handle: RePEc:ibn:masjnl:v:5:y:2011:i:4:p:68
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    JEL classification:

    • R00 - Urban, Rural, Regional, Real Estate, and Transportation Economics - - General - - - General
    • Z0 - Other Special Topics - - General

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