Experimental study on the disintegration behavior and mechanism of red-bed mudstone in guangxi, China
Red-bed mudstone (RBM) has the characteristics of being easily softened and disintegrated under dry and wet cycles. To investigate the weakening and disintegration characteristics of the RBM, typical mudstone from Guangxi highway slope was taken as the research object in this study. Disintegration t...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2024-03-01
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| Series: | Frontiers in Materials |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fmats.2024.1357116/full |
| _version_ | 1797257585217241088 |
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| author | Tingyi Luo Qingsong Zhang Chong Gui Yasen Tang Shijie Zhou Yuting Wang |
| author_facet | Tingyi Luo Qingsong Zhang Chong Gui Yasen Tang Shijie Zhou Yuting Wang |
| author_sort | Tingyi Luo |
| collection | DOAJ |
| description | Red-bed mudstone (RBM) has the characteristics of being easily softened and disintegrated under dry and wet cycles. To investigate the weakening and disintegration characteristics of the RBM, typical mudstone from Guangxi highway slope was taken as the research object in this study. Disintegration tests, water chemistry tests, and microscopic tests were performed to investigate the disintegration mechanism of this RBM. The results indicate that the RBM exhibits strong disintegration, releasing soluble salts such as potassium chloride and sulfates during the disintegration process. The hydrolysis of clay minerals is the main cause of changes in ion concentration in the solution. Throughout the dry and wet cycles, the proportion of macro-pores and meso-pores significantly increases, while the percentage of small and micro-pores gradually decreases. Under the influence of dry and wet cycles, the contact area between particles gradually decreases, transitioning from face-to-face contact to face-edge contact and finally to edge-to-edge contact. These research findings provide a basis for the stability analysis and prevention of landslide hazards in the red-bed soft rock areas. |
| first_indexed | 2024-04-24T22:39:58Z |
| format | Article |
| id | doaj.art-0e8dd5f465754364b64f1704e7253c7c |
| institution | Directory Open Access Journal |
| issn | 2296-8016 |
| language | English |
| last_indexed | 2024-04-24T22:39:58Z |
| publishDate | 2024-03-01 |
| publisher | Frontiers Media S.A. |
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| series | Frontiers in Materials |
| spelling | doaj.art-0e8dd5f465754364b64f1704e7253c7c2024-03-19T04:36:13ZengFrontiers Media S.A.Frontiers in Materials2296-80162024-03-011110.3389/fmats.2024.13571161357116Experimental study on the disintegration behavior and mechanism of red-bed mudstone in guangxi, ChinaTingyi Luo0Qingsong Zhang1Chong Gui2Yasen Tang3Shijie Zhou4Yuting Wang5Guangxi Beitou Highway Construction & Investment Group Co., Ltd, Nanning, ChinaInstitute of Geotechnical Engineering, Southeast University, Nanjing, ChinaGuangxi Beitou Highway Construction & Investment Group Co., Ltd, Nanning, ChinaGuangxi Beitou Highway Construction & Investment Group Co., Ltd, Nanning, ChinaGuangxi Beitou Highway Construction & Investment Group Co., Ltd, Nanning, ChinaInstitute of Geotechnical Engineering, Southeast University, Nanjing, ChinaRed-bed mudstone (RBM) has the characteristics of being easily softened and disintegrated under dry and wet cycles. To investigate the weakening and disintegration characteristics of the RBM, typical mudstone from Guangxi highway slope was taken as the research object in this study. Disintegration tests, water chemistry tests, and microscopic tests were performed to investigate the disintegration mechanism of this RBM. The results indicate that the RBM exhibits strong disintegration, releasing soluble salts such as potassium chloride and sulfates during the disintegration process. The hydrolysis of clay minerals is the main cause of changes in ion concentration in the solution. Throughout the dry and wet cycles, the proportion of macro-pores and meso-pores significantly increases, while the percentage of small and micro-pores gradually decreases. Under the influence of dry and wet cycles, the contact area between particles gradually decreases, transitioning from face-to-face contact to face-edge contact and finally to edge-to-edge contact. These research findings provide a basis for the stability analysis and prevention of landslide hazards in the red-bed soft rock areas.https://www.frontiersin.org/articles/10.3389/fmats.2024.1357116/fullred-bed mudstonedisintegrationdry and wet cyclesion concentrationpore size distribution |
| spellingShingle | Tingyi Luo Qingsong Zhang Chong Gui Yasen Tang Shijie Zhou Yuting Wang Experimental study on the disintegration behavior and mechanism of red-bed mudstone in guangxi, China Frontiers in Materials red-bed mudstone disintegration dry and wet cycles ion concentration pore size distribution |
| title | Experimental study on the disintegration behavior and mechanism of red-bed mudstone in guangxi, China |
| title_full | Experimental study on the disintegration behavior and mechanism of red-bed mudstone in guangxi, China |
| title_fullStr | Experimental study on the disintegration behavior and mechanism of red-bed mudstone in guangxi, China |
| title_full_unstemmed | Experimental study on the disintegration behavior and mechanism of red-bed mudstone in guangxi, China |
| title_short | Experimental study on the disintegration behavior and mechanism of red-bed mudstone in guangxi, China |
| title_sort | experimental study on the disintegration behavior and mechanism of red bed mudstone in guangxi china |
| topic | red-bed mudstone disintegration dry and wet cycles ion concentration pore size distribution |
| url | https://www.frontiersin.org/articles/10.3389/fmats.2024.1357116/full |
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