西藏高原隧道露石水泥混凝土路面抗冻性试验

在西藏高原气候条件下，隧道公路路面工程有抗冻，耐用特殊性要求。为了可以顺利采用露石水泥混凝土路面方案完成路面设计、施工，除了结合在我国内地已有的成功经验和成熟工艺，还要在施工现场及室内进行相应一系列的路用性能试验。本文结合实体工程一拉贡路嘎拉山隧道露石水泥混凝土路面具体应用技术。进行了路面抗冻性试验。经过试验分析论证，为工程实施提供技术支持及结论验证。

Frost resistance test on the exposed cement concrete pavement of tunnel in Tibet plateau

In the climate condition of Tibet plateau, pavement engineering of tunnel in highway should meet the special requirements such as frost-resistance and durability. In order to be successful to adopt the pavement scheme with exposed aggregate cement concrete so as to complete the road design and construction, not only should the successful experience and some mature technologies be combined in the mainland of China, but also should a series of test on road performance be done in the construction site and indoor corresponding. Combined the concrete application technology of exposed aggregate cement concrete pavement of real project Gala mountain tunnel in Lagong road, frost-resisting test of pavement had been done in order to provide technical support and verify the conclusions for engineering implement.