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Experimental Study on Partial Replacement of Steel Slag as Fine Aggregate in Slag Cement Concrete Mix
(2019-06-17T11:19:30Z) UDAY KUMAR, K K; NAQUEEB, ALAM; ABHISHEK, N S; S. PAWAN KALYAN, REDDY
Slag is a partially vitreous by product of the process of smelting ore. Slag is usually a mixture of metal oxides and silicon dioxides. One of the most beneficial uses for furnace slag is in concrete. Because of its chemical and physical properties, it is a very reactive aggregate. Concrete containing slag can have very high strength and can be very durable. So Slag can be used in concrete. When it is used in concrete, it acts as filler and as a strengthening material. The furnace slag also combines with calcium oxide and iron oxide. Both of these actions result in a denser, stronger and less permeable material. In this slag concrete we have replaced fine aggregate up to 50, 60 and 70 percent by furnace slag. It increases the water demand in a concrete mix; however, dosage rates of less than 5 percent will not typically require a water reducer. High replacement rates will require the use of a high range water reducer. The waste material was substituted for replacement of fine aggregates and for the preparation of concrete blocks. In this project, we have followed Indian standard methods and arrived at the mix design for M40 grade concrete. The preliminary studies were conducted by mixing the slag with the cement concrete cubes of standard sizes.