Water and salt migration model of solidified sulfate-contaminated soil by full solid waste cementitious materials
5 affiliations
- 1College of Hydraulic and Civil Engineering, Xinjiang Agricultural University, Urumqi, China
- 2Xinjiang Key Laboratory of Hydraulic Engineering Security and Water Disasters Prevention, Urumqi, China
- 3Geotechnical Research Institute, Hohai University, Nanjing, Jiangsu, China
- 4College of Transportation and Logistics Engineering, Xinjiang Agricultural University, Urumqi, Xinjiang, China
- 5Xinjiang Transportation Planning, Survey and Design Institute Co., Ltd., Urumqi, Xinjiang, China
Abstract
The limitations of the research on the water-salt migration of sulfate-stained soil using solid waste as the sole binding material, such as the difficulty in characterizing the hydration reaction products over time, were addressed in this study. The research focused on different ratios of solid waste-based binding materials for solidifying sulfate-stained soil. Through the combination of experiments and theory, a water-salt migration model for solidified sulfate-stained soil using solid waste-based binding materials was established. Compared to traditional studies, this model can represent the time-dependent characterization of the hydration process. By introducing the grey correlation degree theory and using porosity as the evaluation index, the dynamic evolution characterization of the hydration products of solid waste-based binding materials was achieved. An innovative approach was adopted to construct the relationship between porosity and matrix suction using the Logistic curve, which served as a link to establish the water-salt migration equation. The porosity was used to control the spatial-temporal distribution of water and salt, compensating for the traditional model's neglect of the influence of changes in the cementing system on water-salt migration. The influence of the amount of binder, the proportion of slag, and the salt content on the pore structure of the solidified soil was systematically clarified, verifying that an increase in binder amount, an increase in the proportion of slag, and a decrease in salt content can significantly optimize the pore structure and inhibit water-salt migration. This provides a theoretical basis for the water-salt migration of solidified sulfate-stained soil using solid waste-based binding materials.
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BibTeX
@article{wang2026water,
title = {{Water and salt migration model of solidified sulfate-contaminated soil by full solid waste cementitious materials}},
author = {Chongyang Wang and Zeshi Ren and Jingwei Gong and Miaomiao Gong and Chong Shi and Zhiwei Xie and Tianqi Tong and Zunqing Liu and Jie Liu},
journal = {PLOS One},
year = {2026},
month = sep,
doi = {10.1371/journal.pone.0351883},
url = {https://doi.org/10.1371/journal.pone.0351883},
note = {CC BY 4.0},
}
RIS
TY - JOUR
TI - Water and salt migration model of solidified sulfate-contaminated soil by full solid waste cementitious materials
AU - Chongyang Wang
AU - Zeshi Ren
AU - Jingwei Gong
AU - Miaomiao Gong
AU - Chong Shi
AU - Zhiwei Xie
AU - Tianqi Tong
AU - Zunqing Liu
AU - Jie Liu
PY - 2026
DA - 2026/09/08
JO - PLOS One
DO - 10.1371/journal.pone.0351883
UR - https://doi.org/10.1371/journal.pone.0351883
AB - The limitations of the research on the water-salt migration of sulfate-stained soil using solid waste as the sole binding material, such as the difficulty in characterizing the hydration reaction products over time, were addressed in this study. The research focused on different ratios of solid waste-based binding materials for solidifying sulfate-stained soil. Through the combination of experiments and theory, a water-salt migration model for solidified sulfate-stained soil using solid waste-based binding materials was established. Compared to traditional studies, this model can represent the time-dependent characterization of the hydration process. By introducing the grey correlation degree theory and using porosity as the evaluation index, the dynamic evolution characterization of the hydration products of solid waste-based binding materials was achieved. An innovative approach was adopted to construct the relationship between porosity and matrix suction using the Logistic curve, which served as a link to establish the water-salt migration equation. The porosity was used to control the spatial-temporal distribution of water and salt, compensating for the traditional model's neglect of the influence of changes in the cementing system on water-salt migration. The influence of the amount of binder, the proportion of slag, and the salt content on the pore structure of the solidified soil was systematically clarified, verifying that an increase in binder amount, an increase in the proportion of slag, and a decrease in salt content can significantly optimize the pore structure and inhibit water-salt migration. This provides a theoretical basis for the water-salt migration of solidified sulfate-stained soil using solid waste-based binding materials.
SN - 1932-6203
ER -