Abstract
AbstractEcological worries are being raised against exploitation of natural resources. The disagreements are mostly in related to conserving soil beds from erosion and the fact of having natural sand as a filter media for ground water. Over a period of years, coal industry in India is interfacing shortage of river sand due to new mining laws and its increasing demand in infrastructure expansion. The present study focuses on study of extraction of sand from the overburdens of opencast mines of coal fields and its feasibility as a fine aggregate in concrete. The surcharge spread over in mines needs to be removed for separation of coal to an external dump till ample space is produced for back filling by obtaining of land nearby coal carrying area. Further this surcharge waste needs to be managed at the time of closure of mine for land acquiring. In this project, physical property of extracted sand from overburden and natural sand from river bed is compared and effort is made to utilize the waste generated in tones into sustainable sand solution.KeywordsNatural sandExtracted sandOverburdenSustainability
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