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Iranian Journal of Chemistry and Chemical Engineering، جلد ۴۳، شماره ۷، صفحات ۲۷۵۰-۲۷۶۰
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عنوان انگلیسی Hydration of Ternary Blends Containing Steel Slag and Limestone by Considering the Curing Temperature Effect
چکیده انگلیسی مقاله The effect of the curing temperature on the hydration ternary blended cement based on limestone and processed steel slag was examined by measuring the degree of hydration, Apparent activation energy (Ea), and heat of hydration at three different curing temperatures 25, 45, and 65 ˚C. Determining the progress of hydration was done by measuring the degree of hydration and using the non-evaporable water (Wn) measurement technique. An increase in temperature accelerates
the hydration process and as a result, increases the Wn at different times.  At the early stages of hydration, the degree of hydration increases with temperature. However, over time, the effect of curing temperature decreases and approaches zero. The activation energy was determined using the Arrhenius equation. Apparent activation energy (Ea) increases by replacing cement with steel slag and limestone. Measuring the heat of hydration with a calorimeter by solution method at different times (1, 3, 7, 28, 56, and 84 days) and different temperatures. The heat of hydration is reduced by replacing cement with steel slag and limestone, which is related to the dilution effect. As the curing temperature increases, the heat of Hydration also increases.
کلیدواژه‌های انگلیسی مقاله Ternary Blended Cement,Steel Slag,Limestone,Hydration
نویسندگان مقاله Mohammad Jaafar Soltanian Fard |
Department of Chemistry, Firoozabad Branch, Islamic Azad University, Firoozabad, I.R. IRAN

Mojtaba Hosseini |
Department of Chemistry, Firoozabad Branch, Islamic Azad University, Firoozabad, I.R. IRAN

Ali Allahverdi |
Cement Research Center, School of Chemical Engineering, Iran University of Science and Technology, Tehran, I.R. IRAN

نشانی اینترنتی https://ijcce.ac.ir/article_715027_5b981cec7b94538fea250837cddd5ced.pdf
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