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Erschienen in:
2021 | OriginalPaper | Buchkapitel
A Study on Effect of Mica Content on Engineering Properties of Sands
verfasst von : Rajesh Deb, Indira Baruah Gogoi
Erschienen in: Proceedings of the Indian Geotechnical Conference 2019
Verlag: Springer Singapore
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Abstract
It is often necessary to understand the interaction of mica mineral with the fine aggregates which is often used for construction purposes. Mica is one of the known deterious minerals which affects the engineering properties of sand and which ultimately affects the concrete. Different research work has already being conducted by different researchers. In the present study, an attempt has been made to study the effect of mica on different engineering properties. Here, the percentage of mica by weight adopted for different test procedures are 2%, 4%, 6% and 8%. Direct shear test, standard Proctor test, CBR test and compressive strength test were conducted by percentage replacement of locally available sand by mica. From the laboratory test results, it established that the presence of mica in fine aggregates causes reduction of compressive strength, and it increases the water demand. The dry density value, shear strength and the CBR value also reduce with the presence of mica content.