• structural characteristics and hydration kinetics of modified steel slag

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1392/07/24
    • تاریخ انتشار در تی پی بین: 1392/07/24
    • تعداد بازدید: 906
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     this study investigates the structural characteristics and hydration kinetics of modified basic oxygen furnace steel slag. the basic oxygen furnace steel slag (bofs) was mixed with electric arc furnace steel slag (eafs) in appropriate ratios and heated again at high temperature in the laboratory. the mineralogical and structural characteristics of both bofs and modified steel slag (mss) were characterized by x-ray diffraction, optical microscopy, scanning electron microscopy, raman and fourier transform infrared spectroscopies. the results show that modification increases alite content in mss and decreases alite crystal size with the formation of c6af2. one more obvious heat evolution peak appears in mss's heat-flow rate curves in comparison to bofs, becoming similar to that of typical portland cement paste. as a result, its cementitious activity is much improved.

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