合成纤维混凝土充分利用合成纤维的物理特性,解决桥面混凝土的抗折强度、抗渗性能、耐久性等关键问题,避免了桥面早期破坏的通病,成为今后桥面混凝土发展的主流。北京市五环路是一条截流、疏导市区过境交通,连接市区边缘地区的全封闭、全立交的高速公路环,路线全长99.69km,设计行车速度120km/h。它既是北京市 Synthetic fiber concrete make full use of the physical properties of synthetic fibers to solve the key issues of flexural strength, impermeability, durability and other issues of the bridge deck concrete, to avoid the common problems of early bridge deck damage, become the mainstream of bridge deck concrete development in the future. The Fifth Ring Road in Beijing is an expressway ring that intercepts and diverts urban transit traffic and connects the fully enclosed and completely interchangeed expressway at the urban fringe. The route is 99.69km in length with a design speed of 120km / h. It is both Beijing