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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: On Probability Distribution of Chloride Diffusion Coefficient for Recycled Aggregate Concrete
Author(s): Jingwei Ying, Jianzhuang Xiao, and Qiujiang Meng
Appears on pages(s): 61–73
Keywords: recycled aggregate concrete (RAC), recycled coarse aggregate (RCA), old attached mortar, chloride diffusion coefficient, probability density evolution method (PDEM)
Abstract:In predicating the probability distribution of chloride diffusion coefficient of recycled aggregate concrete (DRAC), themorphological characteristics of three phases, i.e., the old attached mortar, the natural aggregate and the new mortar, should all betaken into account. The present paper attempts to develop a probability density evolution method (PDEM) to achieve this. Afterverifying the derived PDEM results with experimental results, the effects of old attached mortar to the DRAC are examined in aquantitative manner. It is found that (1) the variation of the attached mortar content is much sensitive to DRAC; (2) given theprobability distribution of the content and chloride diffusion coefficient of old mortar, the probability distribution of DRAC can beanalysed based on the PDEM; and (3) the critical chloride diffusion coefficient at a certain assurance rate can be obtained by thePDEM. The analysis results of this investigation will be valuable to the durability design for RAC.
IJCSM, International Partner Access.
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