5 a, the corrosion solution is acidic (at pH 5), and the corrosion weight per unit length of anchor bars shows an increasing trend as the stress level increases.
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Performance evolution of prestressing anchor bars in corrosive environments experimental study.
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5 b can be seen, with the increase in stress level, the unit length of corrosion weight is increasing, but its corrosion increment is gradually decreasing, when the stress level increases to a certain extent (36%), the unit length of corrosion weight are showing a decreasing trend.