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路桥钢筋混凝土的耐久性研究
引用本文:杨全兵,杨学广,李志宏.路桥钢筋混凝土的耐久性研究[J].混凝土与水泥制品,2001,10(6):7-10.
作者姓名:杨全兵  杨学广  李志宏
作者单位:1. 同济大学混凝土材料研究国家重点实验室,上海,200433
2. 黑龙江省鹤大公路佳七段建设指挥部
3. 佳木斯路桥集团公司
基金项目:黑龙江省交通厅重点科技攻关项目
摘    要:用盐冻剥落量,DF值,重量损失,Cl^-离子扩散深度和钢筋锈蚀率五个耐久性参数来比较了按耐久性设计的优化混凝土与按传统设计混凝土两者间的性能优劣,同时比较了南方与北方的粉煤灰对混凝土性能的不同影响。

关 键 词:抗冻性  引气剂  粉煤灰  桥梁  钢筋混凝土  耐久性

Study on Reinforced Concrete Durability in Road and Bridges
Yang Quanbin,Yang Xueguang,Li Zhihong.Study on Reinforced Concrete Durability in Road and Bridges[J].China Concrete and Cement Products,2001,10(6):7-10.
Authors:Yang Quanbin  Yang Xueguang  Li Zhihong
Abstract:The durability of two kinds of concrete, designed respectively in accordance with durable concrete proportioning and traditional proprtioning, are compared by experimental measuring the five parameters, such as scaling loss for freeze-thawing in solt solution, DF factors and the loss of mass of concrete in freeze-thawing, the depth of Cl- diffution and the corrosion rate of reinforcement. Concurrently, the different influences of two fly-ash, produced in the south and the north, on concrete durability are compared.
Keywords:Resistance to scaling loss for freeze-thawing in solt solution  Resistance to freezing  Resistance to corrosion of reinforcement  Air entraining agent  Fly-ash  
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