锈蚀与冻融作用对混凝土抗拉性能的影响OA
Effects of corrosion and freeze-thaw action on the tensile properties of concrete
为探究服役期内不同锈蚀率和冻融循环次数对混凝土拉伸性能影响的规律,通过氯离子电渗和冻融浸泡交替循环试验,并基于单轴拉伸实验结果建立了考虑锈蚀和冻融损伤的混凝土损伤因子计算方法.结果表明:锈蚀渗透对拉伸应力的损伤程度小于冻融循环对混凝土的损伤程度,冻融循环 30 次和 50 次拉伸应力分别降低了约 3.46%和 16.54%;当遭受冻融循环次数为 50 次时,氯离子渗透率为5%和10%的试件损伤因子分别增大了 6.24%和 9.66%.通过对损伤试…查看全部>>
To investigate the effects of different corrosion rates and freeze-thaw cycles on the tensile properties of concrete dur-ing its service life,alternating chloride ion migration and freeze-thaw immersion tests were conducted.Based on the results of uniaxial tensile tests,a method for calculating the concrete damage factor considering both corrosion and freeze-thaw damage was established.The results showed that the damage to tensile stress caused by corr…查看全部>>
李国栋
德州市水利局,山东 德州 253050
水利科学
锈蚀冻融循环混凝土拉伸性能损伤因子
corrosionfreeze-thaw cyclesconcretetensile performancedamage factor
《江淮水利科技》 2024 (3)
21-24,4
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