浅谈UEA膨胀混凝土在桥梁拼接上的应用

Preliminary discussion on the Application Of UEA expansive concrete in the splicing bridges

高速公路扩建工程中,新老桥的拼接质量是施工的控制重点。UEA作为补偿收缩的微膨胀混凝土,它利用膨胀剂水化反应形成膨胀性水化物,产生膨胀源,可防止和大大减轻混凝土的收缩开裂,达到抗裂、防渗的目的,从而提高桥梁拼接质量。

During the highway expansion project, splicing old and new bridge construction quality is the focus of control. UEA as a micro - expansion of shrinkage - compensating concrete, it is the use of expansive agent hydration expansion hydrate formation, resulting in expansion of the source, to prevent and reduce shrinkage cracking of concrete to crack, the purpose of anti - seepage, thereby enhancing the quality of a bridge connection .