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To investigate the influences of recycled coarse aggregate replacement rates on the flexural properties of corroded reinforced high-strength recycled concrete beams, four specimens with corrosion rate of 5% were obtained using the electrochemical corrosion method, and the bending performance test was carried out. The effects of recycled coarse aggregate replacement rates on their failure characteristics, concrete strain, energy dissipation and bearing capacity were investigated by unidirectional repeated loading. The results showed that the loading process of the cross section of corroded reinforced high-strength recycled concrete beams with low corrosion rate was irrelevant to recycled coarse aggregate replacement rates; the ultimate bearing capacity slightly decreases with the increase of recycled coarse aggregate replacement rate; under recycled coarse aggregate replacement rate of 33% energy dissipation capacity shows little change, under recycled coarse aggregate replacement rates 66% and 100% ,the energy dissipation capacity decreases with the increase of recycled coarse aggregate replacement rate. recycled coarse aggregate replacement rate of 100% is unfavorable when exposed to chlorine salt and corrosionoriented environment for long time and the rate should be controlled around 30%. © 2017 Science Press. All rights reserved.
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