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자료유형
학술저널
저자정보
(Guangxi University) (Tongji University) (Guangxi University)
저널정보
한국콘크리트학회 International Journal of Concrete Structures and Materials International Journal of Concrete Structures and Materials Vol.10 No.1
발행연도
수록면
61 - 73 (13page)

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초록· 키워드

In predicating the probability distribution of chloride diffusion coefficient of recycled aggregate concrete (D<SUB>RAC</SUB>), the morphological characteristics of three phases, i.e., the old attached mortar, the natural aggregate and the new mortar, should all be taken into account. The present paper attempts to develop a probability density evolution method (PDEM) to achieve this. After verifying the derived PDEM results with experimental results, the effects of old attached mortar to the D<SUB>RAC</SUB> are examined in a quantitative manner. It is found that (1) the variation of the attached mortar content is much sensitive to D<SUB>RAC</SUB>; (2) given the probability distribution of the content and chloride diffusion coefficient of old mortar, the probability distribution of DRAC can be analysed based on the PDEM; and (3) the critical chloride diffusion coefficient at a certain assurance rate can be obtained by the PDEM. The analysis results of this investigation will be valuable to the durability design for RAC.
#recycled aggregate concrete (RAC) #recycled coarse aggregate (RCA) #old attached mortar #chloride diffusion coefficient #probability density evolution method (PDEM).
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목차

  1. Abstract
  2. 1. Introduction
  3. 2. Significance of the Research
  4. 3. Probability Density Evolution Method for RAC
  5. 4. Conclusion
  6. References

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