3D Percolation Performance of Recycled Aggregate Concrete in Real Marine Exposure Environments

doi:10.16552/j.cnki.issn1001-1625.2024.0897

Abstract

Abstract: To elucidate the dynamic evolution of pore structure characteristics in recycled aggregate concrete (RAC) under real marine exposure environments, this study integrated percolation theory with advanced micro-testing techniques, including X-ray computed tomography (X-CT), alongside macro-performance analyses. The investigation focused on the pore distribution and chloride ion corrosion in RAC modified with fly ash (FA) and metakaolin (MK) subjected to real marine exposure. The study provided a comprehensive assessment of the effect of chloride ion corrosion on the progression and development of internal pores and cracks within RAC, and examined the percolation performance across various RAC formulations and real marine exposure ages. Findings reveal that the strategic incorporation of FA and MK significantly improves RAC compressive strength and resistance to chloride ion corrosion. A discernible correlation between fractal dimension and both macro-performance and percolation parameters is established. Percolation theory effectively predicts chloride salt migration and elucidates the underlying erosion mechanisms. This research offers critical insights into ion transport mechanisms in concrete and enhances the understanding of RAC durability.

Key words: recycled aggregate concrete, metakaolin, fly ash, real marine exposure, percolation theory, three-dimensional percolation

CLC Number:

TU528

ZHU Yuanlang, ZHANG Mingliang, WEI Jinghua, ZHANG Hengwu, LIU Zipan, GAO Song. 3D Percolation Performance of Recycled Aggregate Concrete in Real Marine Exposure Environments[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2025, 44(1): 274-288.

References

[1] SONI A, DAS P K, HASHMI A W, et al. Challenges and opportunities of utilizing municipal solid waste as alternative building materials for sustainable development goals: a review[J]. Sustainable Chemistry and Pharmacy, 2022, 27: 100706.
[2] LIU J, MA K L, SHEN J T, et al. Influence of recycled concrete aggregate enhancement methods on the change of microstructure of ITZs in recycled aggregate concrete[J]. Construction and Building Materials, 2023, 371: 130772.
[3] WANG D Y, LU C X, ZHU Z M, et al. Mechanical performance of recycled aggregate concrete in green civil engineering: review[J]. Case Studies in Construction Materials, 2023, 19: e02384.
[4] 康玉梅, 魏梦琦, 宋雨航, 等. 再生混凝土抗渗性能试验研究[J]. 混凝土, 2023(7): 104-107+112.
KANG Y M, WEI M Q, SONG Y H, et al. Experimental study on impermeability of recycled aggregate concrete[J]. Concrete, 2023(7): 104-107+112 (in Chinese).
[5] YUE G B, MA Z M, LIU M, et al. Damage behavior of the multiple ITZs in recycled aggregate concrete subjected to aggressive ion environment[J]. Construction and Building Materials, 2020, 245: 118419.
[6] 石加顺, 钱如胜, 张云升, 等. 水泥基材料气体渗透性测试方法及与耐久性关系的研究进展[J]. 材料导报, 2021, 35(1): 1121-1130.
SHI J S, QIAN R S, ZHANG Y S, et al. Advances in gas permeability test methods and its relationships with durability for cementitious materials[J]. Materials Reports, 2021, 35(1): 1121-1130 (in Chinese).
[7] ALABI S A, MAHACHI J. Chloride ion penetration performance of recycled concrete with different geopolymers[J]. Materials Today: Proceedings, 2021, 38: 762-766.
[8] ANN K Y, MOON H Y, KIM Y B, et al. Durability of recycled aggregate concrete using pozzolanic materials[J]. Waste Management, 2008, 28(6): 993-999.
[9] GAO S, GUO J, GONG Y Y, et al. Study on the penetration and diffusion of chloride ions in interface transition zone of recycled concrete prepared by modified recycled coarse aggregates[J]. Case Studies in Construction Materials, 2022, 16: e01034.
[10] HOSSEINNEZHAD H, SÜRMELIOĞLU S, ÇAKιR Ö A, et al. A novel method for characterization of recycled concrete aggregates: computerized microtomography[J]. Journal of Building Engineering, 2023, 76: 107321.
[11] ATASHAM UL HAQ M, XIA P, KHAN S, et al. Characterizations and quantification of freeze-thaw behaviors of recycled brick aggregate concrete[J]. Journal of Building Engineering, 2024, 86: 108821.
[12] MENG T, WEI H D, DAI D W, et al. Effect of brick aggregate on failure process of mixed recycled aggregate concrete via X-CT[J]. Construction and Building Materials, 2022, 327: 126934.
[13] CHEN W Z, JIAO C J, ZHANG X C, et al. Study on the microstructure of recycled aggregate concrete strengthened by the nano-SiO₂ soaking method[J]. Structures, 2023, 58: 105388.
[14] 鲍玖文, 庄智杰, 张鹏, 等. 基于相似性的海洋潮汐区环境混凝土抗氯盐侵蚀性能研究进展[J]. 材料导报, 2021, 35(7): 7087-7095.
BAO J W, ZHUANG Z J, ZHANG P, et al. Research progress of chloride corrosion resistance of concrete exposed to marine tidal environment based on similarity theory[J]. Materials Reports, 2021, 35(7): 7087-7095 (in Chinese).
[15] 贺鸿珠, 刘军, 杨胜杰, 等. 掺粉煤灰混凝土耐海水侵蚀性能的试验研究[J]. 混凝土与水泥制品, 2000(3): 7-11+2.
HE H Z, LIU J, YANG S J, et al. Experimental research on resistance to sea-water attack for concrete with adding fly-ash[J]. Chinal Concrete and Cement Products, 2000(3): 7-11+2 (in Chinese).
[16] 庄智杰. 实海暴露和人工模拟潮汐区水泥基材料氯离子侵蚀机理研究[D]. 青岛: 青岛理工大学, 2021.
ZHUANG Z J. Study on chloride ion erosion mechanism of cement-based materials in real sea exposure and artificial simulated tidal zone[D]. Qingdao: Qingdao University of Technology, 2021 (in Chinese).
[17] 陈俊. 基于MATLAB的硅橡胶-炭黑复合材料的逾渗数值模拟[D]. 武汉: 武汉科技大学, 2019.
CHEN J. Numerical simulation of percolation of silicone rubber-carbon black composite based on MATLAB[D]. Wuhan: Wuhan University of Science and Technology, 2019 (in Chinese).
[18] QU F L, LI W G, DONG W K, et al. Durability deterioration of concrete under marine environment from material to structure: a critical review[J]. Journal of Building Engineering, 2021, 35: 102074.
[19] 高鹏, 陈星, 王维, 等. 粉煤灰不同掺量对高性能混凝土耐久性影响研究[J]. 粘接, 2024, 51(2): 80-83.
GAO P, CHEN X, WANG W, et al. Research on the influence of fly ash content on the durability of high performance concrete materials in civil engineering[J]. Adhesion, 2024, 51(2): 80-83 (in Chinese).
[20] 吴叶, 相秋迪, 蒋亚清, 等. 图像法定量分析加气混凝土晶体和胶体[J]. 混凝土与水泥制品, 2014(9): 59-61.
WU Y, XIANG Q D, JIANG Y Q, et al. Quantitative analysis on crystal and gel of aerated concrete (AC) by scanning technique[J]. China Concrete and Cement Products, 2014(9): 59-61 (in Chinese).
[21] 赵俊先, 李军伟, 夏旭江, 等. 矿粉-粉煤灰-偏高岭土复合基低碳地聚合物疏浚淤泥固化材料力学特性试验研究[J]. 中国港湾建设, 2023, 43(10): 55-60.
ZHAO J X, LI J W, XIA X J, et al. Experimental study on mechanical properties of mineral powder-fly ash-metakaolin composite based low carbon geopolymer dredged silt solidified material[J]. China Harbour Engineering, 2023, 43(10): 55-60 (in Chinese).
[22] 高嵩, 郭远新, 吴本清, 等. 再生细骨料品质的分形学特征研究[J]. 混凝土, 2019(6): 78-83.
GAO S, GUO Y X, WU B Q, et al. Research on fractal characteristic of recycled fine aggregate[J]. Concrete, 2019(6): 78-83 (in Chinese).
[23] 夏春, 刘浩吾. 混凝土细骨料级配的分形特征研究[J]. 西南交通大学学报, 2002, 37(2): 186-189.
XIA C, LIU H W. Research on fractal characteristics of the size-distribution of concrete aggregates[J]. Journal of Southwest Jiaotong University, 2002, 37(2): 186-189 (in Chinese).