Potential application of cement amended marine clay as liner material

One of the major problems being faced today in the society is solid waste disposal. Compacted clay soils are commonly used as liner materials in waste containment systems. As marine clay is abundant in the coastal belt of Kochi, this locally available soil was used in the study. Desiccation cracking...

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Bibliographic Details
Published in:IOP conference series. Materials Science and Engineering 2021-03, Vol.1114 (1), p.12014
Main Authors: Veena, V, Reghunath, S, Cyrus, S, Abraham, B M
Format: Article
Language:English
Subjects:
Cement
Clay soils
Compacted soils
Containment
Cracks
Drying
Soil compaction
Waste disposal
Wetting
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Summary:One of the major problems being faced today in the society is solid waste disposal. Compacted clay soils are commonly used as liner materials in waste containment systems. As marine clay is abundant in the coastal belt of Kochi, this locally available soil was used in the study. Desiccation cracking of clay mass can lead to development of shrinkage cracks and also provide pathways for moisture migration into the landfill. In order to minimize the adverse effect of cracks, the behaviour of sun-dried marine clay amended with cement in different percentages of 1%, 2%, and 4% were studied. To stimulate the field conditions, the samples were subjected to alternate wetting and drying cycles. For different cement content, three cycles of alternate wetting and drying were performed. The study indicates that the extent of crack formation decreases with increase in cement content and the optimum percentage of cement amendment is 4%.
ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/1114/1/012014