Abstract

Generally the river sand is used as a fine aggregate on concrete and is obtained by mining the sand from river bed. Increased sand mining not only affects the aquifer of the river bed but also causes environmental problems. In recent days demand for river sand is increasing due to its lesser availability. Therefore the practice of replacing river sand with Metakaolin is taking a tremendous growth. It is inferred from the literature that replacement of Metakaolin upto 40 gives tremendous increase in the strength of the concrete above which the strength starts to decrease. Various literatures show that replacing with green sand 30 to 40 replacement seems to be effective. In both the cases the workability decreases with the increase in its quantity. Also Bottom ash and Metakaolin replacement results in the decrease of workability and it leads to uneconomic in the project. This paper presents the replacement of fine aggregate up to 40 . The river sand is replaced by Green sand, and Marble powder. The replacement levels of Green sand and marble powder varies from 5 , 10 , 15 and 20 . From the mix design, the w c ratio is taken to be 0.40. The specimens are to be casted, cured for the respective mix proportions and various strength characteristics of the concrete at 28 days are to be performed. The suitability of the replacement materials as fine aggregate for concrete has been assessed by comparing its strength. by Sriram R | Mr. Prabakaran | Mrs. Uma Nambi "Experimental Study on High Strength Concrete using Industrial Wastes" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-3 | Issue-3 , April 2019, URL: https://www.ijtsrd.com/papers/ijtsrd23155.pdf Paper URL: https://www.ijtsrd.com/engineering/civil-engineering/23155/experimental-study-on-high-strength-concrete-using-industrial-wastes/sriram-r

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