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Research on Impermeability of Underwater Non-Dispersible Concrete in Saline Soil
The permeability of different strength grades of submerged non-dispersible concrete with different granulated slag admixtures in a saline soil environment simulated by different erosion solutions was investigated. The variation patterns of the chloride ion diffusion coefficient and pore characterist...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9699431/ https://www.ncbi.nlm.nih.gov/pubmed/36431402 http://dx.doi.org/10.3390/ma15227915 |
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author | Guo, Baolin Wang, Chao Ma, Xianghui Jiang, Ruishuang Wang, Baomin Yan, Jifei Liu, Hang |
author_facet | Guo, Baolin Wang, Chao Ma, Xianghui Jiang, Ruishuang Wang, Baomin Yan, Jifei Liu, Hang |
author_sort | Guo, Baolin |
collection | PubMed |
description | The permeability of different strength grades of submerged non-dispersible concrete with different granulated slag admixtures in a saline soil environment simulated by different erosion solutions was investigated. The variation patterns of the chloride ion diffusion coefficient and pore characteristics were tested using NEL and MIP. The microscopic morphology of the specimens in different erosion environments and with slag doping was observed using SEM. The results showed that the impermeability of concrete in sulfate and complex salt environments was significantly reduced. The resistance of concrete to chloride ion penetration increased with the increase in strength grade, and the Cl− diffusion coefficient of C35 was 5–30% lower than those of C30 and C25 underwater non-dispersible concrete at 360 d. Meanwhile, the admixture of granulated blast-furnace slag optimized the pore size distribution and improved the matrix compactness and permeability. |
format | Online Article Text |
id | pubmed-9699431 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-96994312022-11-26 Research on Impermeability of Underwater Non-Dispersible Concrete in Saline Soil Guo, Baolin Wang, Chao Ma, Xianghui Jiang, Ruishuang Wang, Baomin Yan, Jifei Liu, Hang Materials (Basel) Article The permeability of different strength grades of submerged non-dispersible concrete with different granulated slag admixtures in a saline soil environment simulated by different erosion solutions was investigated. The variation patterns of the chloride ion diffusion coefficient and pore characteristics were tested using NEL and MIP. The microscopic morphology of the specimens in different erosion environments and with slag doping was observed using SEM. The results showed that the impermeability of concrete in sulfate and complex salt environments was significantly reduced. The resistance of concrete to chloride ion penetration increased with the increase in strength grade, and the Cl− diffusion coefficient of C35 was 5–30% lower than those of C30 and C25 underwater non-dispersible concrete at 360 d. Meanwhile, the admixture of granulated blast-furnace slag optimized the pore size distribution and improved the matrix compactness and permeability. MDPI 2022-11-09 /pmc/articles/PMC9699431/ /pubmed/36431402 http://dx.doi.org/10.3390/ma15227915 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Guo, Baolin Wang, Chao Ma, Xianghui Jiang, Ruishuang Wang, Baomin Yan, Jifei Liu, Hang Research on Impermeability of Underwater Non-Dispersible Concrete in Saline Soil |
title | Research on Impermeability of Underwater Non-Dispersible Concrete in Saline Soil |
title_full | Research on Impermeability of Underwater Non-Dispersible Concrete in Saline Soil |
title_fullStr | Research on Impermeability of Underwater Non-Dispersible Concrete in Saline Soil |
title_full_unstemmed | Research on Impermeability of Underwater Non-Dispersible Concrete in Saline Soil |
title_short | Research on Impermeability of Underwater Non-Dispersible Concrete in Saline Soil |
title_sort | research on impermeability of underwater non-dispersible concrete in saline soil |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9699431/ https://www.ncbi.nlm.nih.gov/pubmed/36431402 http://dx.doi.org/10.3390/ma15227915 |
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