混凝土是现代桥梁建设中最主要的结构材料之一,混凝土质量的优劣(包括混凝土材料和施工)直接影响大桥的耐久寿命。中铁大桥局是我国桥梁建设队伍的一支生力军,凭借现代的管理理念和领先的技术,在我国桥梁建设中发挥出越来 Concrete is one of the most important structural materials in modern bridge construction. The quality of concrete (including concrete materials and construction) directly affects the durability of the bridge. China Railway Bridge Bureau is a new force in the bridge construction team in China, with modern management concepts and advanced technology, play more and more in the bridge construction in our country