简述防止钢筋混凝土结构中的钢筋发生腐蚀的至少四种措施。 -题库考试答案搜索网

简述防止钢筋混凝土结构中的钢筋发生腐蚀的至少四种措施。

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2022-04-02 17:18

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防止钢筋混凝土结构中的钢筋发生腐蚀的措施有:(1)混凝土设置适当的保护层,防止过早碳化;(2)掺减水剂降低混凝土的水灰比,提高混凝土的密实度,提高抗碳化性;(3)限制混凝土原材料中的 Cl-含量;(4)掺活性掺合料,降低混凝土的水化热,防止早期开裂,改善孔结构及界面结构,提高耐久性;(5)加强振捣、养护,保证混凝土的施工质量;(6)混凝土中掺加防锈剂(如重铬酸盐等);(7)钢筋涂覆环氧树脂或镀锌、镀镍等。(其中任意四条)

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标签：佳木斯职业学院继续教育学院建筑工程技术高起专建筑材料平时作业1

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