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|Title:||Microfabric, chemical and mineralogical study of Indian marine clays|
|Authors:||Rajasekaran, G. |
|Source:||Rajasekaran, G.,Murali, K.,Srinivasaraghavan, R. (1998-08). Microfabric, chemical and mineralogical study of Indian marine clays. Ocean Engineering 26 (5) : 463-483. ScholarBank@NUS Repository. https://doi.org/10.1016/S0029-8018(98)00004-3|
|Abstract:||Marine clay deposits are encountered in the coastal regions of the world. They are soft in consistency with low shear strength and are highly compressible. The properties of these deposits are complex and diverse, and they mainly depend on the minerals present and microstructural arrangement of constituent particles. In the present investigation, the physico-chemical properties of the sediment samples obtained from marine deposits of east and west metropolitan coastal cities of India are discussed, and the test results obtained are compared with the synthetic samples such as bentonite and kaolinite. Mineralogical and fabric studies were carried out using scanning electron microscopy and x-ray diffraction techniques. Several consolidation and strength tests were carried out to study the engineering behaviour of these deposits. The strength and compressibility (Cc) values of these deposits varies from 27 to 45 kN/m2 and 0.37 to 0.81 respectively. XRD studies confirm the presence of highly compressible clay minerals such as smectite, vermiculite, chlorite and traces of the low swelling mineral, kaolinite. The fabric studies indicate that the constituent particles were arranged in an open network, or flocculated structure resulting in a high void ratio.|
|Source Title:||Ocean Engineering|
|Appears in Collections:||Staff Publications|
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