Effects of Clay Mineral Composition on the Dynamic Properties and Fabric of Artificial Marine Clay

Marine clays are easily affected by different mineral composition in cyclic load-based geological hazards. Therefore, based on analyzing the mineral composition of natural marine clay, it is the key to predict the dynamic properties of natural materials under cyclic loading by using quantitated arti...

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Autores principales:	Yi Shan, Xing Wang, Jie Cui, Haihong Mo, Yadong Li
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	artificial marine clay mineral composition clay minerals dynamic properties sediment fabric Naval architecture. Shipbuilding. Marine engineering VM1-989 Oceanography GC1-1581
Acceso en línea:	https://doaj.org/article/6fd8623b1ec74c9981b9818e667c191b
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id	oai:doaj.org-article:6fd8623b1ec74c9981b9818e667c191b
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spelling	oai:doaj.org-article:6fd8623b1ec74c9981b9818e667c191b2021-11-25T18:04:25ZEffects of Clay Mineral Composition on the Dynamic Properties and Fabric of Artificial Marine Clay10.3390/jmse91112162077-1312https://doaj.org/article/6fd8623b1ec74c9981b9818e667c191b2021-11-01T00:00:00Zhttps://www.mdpi.com/2077-1312/9/11/1216https://doaj.org/toc/2077-1312Marine clays are easily affected by different mineral composition in cyclic load-based geological hazards. Therefore, based on analyzing the mineral composition of natural marine clay, it is the key to predict the dynamic properties of natural materials under cyclic loading by using quantitated artificial marine clay. In this study, the marine clay found in the South China Sea deltas was investigated. Based on the results of geological conditions and mineral composition analyses, raw non-clay minerals (such as quartz, albite) and clay minerals (such as Na-montmorillonite and kaolinite) were used to produce artificial marine clay, the dynamic properties of which were studied from the impact of mineral composition. Dynamic triaxial laboratory testing for artificial marine clay comprising various clay minerals was performed under identical test conditions. The artificial marine clay with high montmorillonite content exhibited slower development of strain, more sluggish growth in pore water pressure, more rounded hysteresis curves, greater stiffness, and more prolonged viscous energy growth than the clay with low montmorillonite content. In addition, the flocculated fabric of the artificial marine clay with high montmorillonite content demonstrated sufficient pore space changes, more uniform pore distribution, and larger specific surface area than the dispersed fabric of the clay with low montmorillonite content. The factors arising from the influence of montmorillonite may lead to microstructural and fabric changes, hinder the development of pore water, and increase intergranular contact stiffness as well as delay the cyclic strain amplitude at the breakpoint of viscous energy dissipation. In general, the results presented in this study confirm that clay minerals, especially montmorillonite, have significant influence on the dynamic properties of large strain.Yi ShanXing WangJie CuiHaihong MoYadong LiMDPI AGarticleartificial marine claymineral compositionclay mineralsdynamic propertiessediment fabricNaval architecture. Shipbuilding. Marine engineeringVM1-989OceanographyGC1-1581ENJournal of Marine Science and Engineering, Vol 9, Iss 1216, p 1216 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	artificial marine clay mineral composition clay minerals dynamic properties sediment fabric Naval architecture. Shipbuilding. Marine engineering VM1-989 Oceanography GC1-1581
spellingShingle	artificial marine clay mineral composition clay minerals dynamic properties sediment fabric Naval architecture. Shipbuilding. Marine engineering VM1-989 Oceanography GC1-1581 Yi Shan Xing Wang Jie Cui Haihong Mo Yadong Li Effects of Clay Mineral Composition on the Dynamic Properties and Fabric of Artificial Marine Clay
description	Marine clays are easily affected by different mineral composition in cyclic load-based geological hazards. Therefore, based on analyzing the mineral composition of natural marine clay, it is the key to predict the dynamic properties of natural materials under cyclic loading by using quantitated artificial marine clay. In this study, the marine clay found in the South China Sea deltas was investigated. Based on the results of geological conditions and mineral composition analyses, raw non-clay minerals (such as quartz, albite) and clay minerals (such as Na-montmorillonite and kaolinite) were used to produce artificial marine clay, the dynamic properties of which were studied from the impact of mineral composition. Dynamic triaxial laboratory testing for artificial marine clay comprising various clay minerals was performed under identical test conditions. The artificial marine clay with high montmorillonite content exhibited slower development of strain, more sluggish growth in pore water pressure, more rounded hysteresis curves, greater stiffness, and more prolonged viscous energy growth than the clay with low montmorillonite content. In addition, the flocculated fabric of the artificial marine clay with high montmorillonite content demonstrated sufficient pore space changes, more uniform pore distribution, and larger specific surface area than the dispersed fabric of the clay with low montmorillonite content. The factors arising from the influence of montmorillonite may lead to microstructural and fabric changes, hinder the development of pore water, and increase intergranular contact stiffness as well as delay the cyclic strain amplitude at the breakpoint of viscous energy dissipation. In general, the results presented in this study confirm that clay minerals, especially montmorillonite, have significant influence on the dynamic properties of large strain.
format	article
author	Yi Shan Xing Wang Jie Cui Haihong Mo Yadong Li
author_facet	Yi Shan Xing Wang Jie Cui Haihong Mo Yadong Li
author_sort	Yi Shan
title	Effects of Clay Mineral Composition on the Dynamic Properties and Fabric of Artificial Marine Clay
title_short	Effects of Clay Mineral Composition on the Dynamic Properties and Fabric of Artificial Marine Clay
title_full	Effects of Clay Mineral Composition on the Dynamic Properties and Fabric of Artificial Marine Clay
title_fullStr	Effects of Clay Mineral Composition on the Dynamic Properties and Fabric of Artificial Marine Clay
title_full_unstemmed	Effects of Clay Mineral Composition on the Dynamic Properties and Fabric of Artificial Marine Clay
title_sort	effects of clay mineral composition on the dynamic properties and fabric of artificial marine clay
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/6fd8623b1ec74c9981b9818e667c191b
work_keys_str_mv	AT yishan effectsofclaymineralcompositiononthedynamicpropertiesandfabricofartificialmarineclay AT xingwang effectsofclaymineralcompositiononthedynamicpropertiesandfabricofartificialmarineclay AT jiecui effectsofclaymineralcompositiononthedynamicpropertiesandfabricofartificialmarineclay AT haihongmo effectsofclaymineralcompositiononthedynamicpropertiesandfabricofartificialmarineclay AT yadongli effectsofclaymineralcompositiononthedynamicpropertiesandfabricofartificialmarineclay
_version_	1718411685218222080

Effects of Clay Mineral Composition on the Dynamic Properties and Fabric of Artificial Marine Clay

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