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Optimization of Industrial Waste Material Used in Concrete under Different Curing Temperatures

H S Jadhav and V B Hange
Department of Civil Engineering, Rajarambapu Institute of Technology, Rajaramnagar

Abstract—Plain concrete subjected to high curing temperature during early hours and days causes rapid precipitation of hydration products. This phenomenon is responsible for the observed early strength development. Furthermore, this fast hydration in the initial stage leads to a more non- uniform distribution of the hydration products. This causes non-homogeneity in the microstructure that significantly reduces the long term strength. In this project work steel industry waste (FES dust) was used as pozzolanic materials. The element composition of these industrial wastes indicates presence of Ca, Si, and Al. So, it contains the cementitious properties. We prepare concrete specimens with 0%, 10%, 20%, 30% and 40% FES dust as replacement of cement. After 24 h of casting all demoulded concrete specimens were exposing to their different temperature for 1-day, 3-days, and 6-days. After that they were transfer to curing tank with water at room temperature. The different curing temperatures were 40°C and 50°C. The compressive strength of normal water curing specimens and hot water curing specimens at 7-days and 28- days were comparing. The result obtained suggests that compressive strength of concrete was developed under hot water curing at temperature 40°C and 50°C in 1, 3 and 6 days. But the rate of increase in compressive strength is not same for duration. 

Index Terms—FES dust, hot water curing, temperature, compressive strength

Cite: H S Jadhav and V B Hange, "Optimization of Industrial Waste Material Used in Concrete under Different Curing Temperatures," International Journal of Structural and Civil Engineering Research, Vol. 2, No. 3, pp. 202-209, August 2013.