سال انتشار: ۱۳۹۱

محل انتشار: دهمین همایش بین المللی سواحل، بنادر و سازه های دریایی

تعداد صفحات: ۸

نویسنده(ها):

Mehdi Soleimanirad – MSc – Bu-ali sina university
Mohsen Tadayon – PHd – Bu-ali sina university
Fereidon Rezaie – PHd – Bu-ali sina university

چکیده:

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 toevaluate 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.