低温早强耐腐蚀高性能混凝土施工技术的应用

Application of Concrete Constructing Technology with Performance of Low Temperature,Early Strength,Corrosion Resistant and Exclusive Quality

青藏铁路Ⅱ期110 kV输电线路地处青藏高原腹地,属多年冻土地区,自然环境恶劣,是一项挑战性工程。文章分析了青藏高原多年冻土条件下混凝土的特点,提出了提高基础混凝土耐久性的技术对策,最后对该施工技术的应用效果进行了分析评价。

The second phase of 110kV transmission line of Qing- Tibet railway pass through hinterland of perennial frozen ground of the highland, thus it＇s a challenging engineering because of execrable environments. The paper analyzes concrete character under the environment of perennial frozen ground, and proposes technical countermeasures of improving durability of basiv concrete; finally, it makes analysis and evaluation on the application effect of the constructing technology.