• the effect of cement content on concrete performance in corrosive environments

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1392/07/24
    • تاریخ انتشار در تی پی بین: 1392/07/24
    • تعداد بازدید: 598
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     in this study, the effect of cement content on the performance of concrete in corrosive environments is investigated on concrete mixtures having the same water/cement (w/c) ratio. three w/c ratios (0.4, 0.45 and 0.5) were used and for each w/c three mixtures were prepared with cement contents 350, 400 and 450 kg/m3. the compressive strength, electrical resistivity and chloride diffusivity of the samples without steel reinforcement were determined. in addition, the half-cell potential of samples with steel reinforcement in 5% nacl solution was measured to evaluate the rebar corrosion. test results indicate that although w/c ratio is kept constant, strength increases and corrosion probability of steel reinforcements decreases when cement content in the mixture decreases from 450 to 350 kg/m3.

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