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The sulfate transfer characteristics in recycled aggregate concrete incorporated with fly ash under percolation theory AITranslate

Song Gao; Zhenwei Qin; Wujian Long; Xin Guo; Yuan Ji; Hengwu Zhang; Fei Xing; Shiyinuo Wang; Ang Liu;
Qingdao University of Technology; Qingdao University of Technology; Shenzhen University; Shandong University; Qingdao University of Technology; Qingdao University of Technology; Qingdao University of Technology; Qingdao University of Technology; Qingdao University of Technology
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Publisher: Elsevier
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Abstract AITranslate

Recycled aggregate concrete (RAC) has multiple interface transition zones (ITZs) due to its complex composition, providing convenient ion transfer channels. Therefore, it is significant to explore the changes of the internal pore structure in RAC under ion erosion conditions for quantifying and predicting ion transfer mechanisms. This paper innovatively utilizes the seepage effect for investigating the evolution of pore structures in RAC under sulfate attack. We conduct a systematic experimental study on the transport of sulfate ions in RAC with different fly ash (FA) substitution rates under dry-wet cycles. Combining backscattered electron imaging (BSE), permeation and fractal characteristics, this paper deeply explore the relationship between pore structure feature, sulfate percolation mechanism and the macroscopic properties of RAC incorporated with different amount of FA.

KeyWords AITranslate

Fractal Interface transition zone Ion transfer Percolation RAC
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Basic Information:

DOI：https://doi.org/10.1016/j.cscm.2023.e02774

Chinese Library Classification Number:

Citation Information:

Recycled aggregate concrete (RAC) has multiple interface transition zones (ITZs) due to its complex composition, providing convenient ion transfer channels. Therefore, it is significant to explore the changes of the internal pore structure in RAC under ion erosion conditions for quantifying and predicting ion transfer mechanisms. This paper innovatively utilizes the seepage effect for investigating the evolution of pore structures in RAC under sulfate attack. We conduct a systematic experimental study on the transport of sulfate ions in RAC with different fly ash (FA) substitution rates under dry-wet cycles. Combining backscattered electron imaging (BSE), permeation and fractal characteristics, this paper deeply explore the relationship between pore structure feature, sulfate percolation mechanism and the macroscopic properties of RAC incorporated with different amount of FA.

quote

GB/T 7714-2015 [1] Song Gao, Zhenwei Qin, Wujian Long, et al. Case Studies in Construction Materials, 2024(20). DOI:10.1016/j.cscm.2023.e02774.
MLA [1] Song Gao, et al., Case Studies in Construction Materials, no. 20, 2024, https://doi.org/10.1016/j.cscm.2023.e02774.
APA [1] Song Gao, Zhenwei Qin, Wujian Long, Xin Guo, Yuan Ji, Hengwu Zhang, Fei Xing, Shiyinuo Wang, & Ang Liu. (2024). Case Studies in Construction Materials(20). https://doi.org/10.1016/j.cscm.2023.e02774
IEEE [1] Song Gao, Zhenwei Qin, Wujian Long, Xin Guo, Yuan Ji, Hengwu Zhang, Fei Xing, Shiyinuo Wang, and Ang Liu, Case Studies in Construction Materials, no. 20, 2024, doi: 10.1016/j.cscm.2023.e02774. keywords: {Fractal;Interface transition zone;Ion transfer;Percolation;RAC}