CRTSⅢ型轨道板快速封锚砂浆施工技术

Construction Technique of Rapid Sealing Anchor Mortar for CRTS Ⅲ Track Slab

封锚砂浆质量是决定无砟轨道板质量的关键环节之一。快速封锚砂浆是一种新型封锚材料,可应用于CRTSⅢ型先张法轨道板的封锚施工,其施工过程广泛采用新工艺、新设备。本文从快速封锚砂浆的技术指标、施工工艺流程、质量检验和病害处理4方面对其施工技术进行了详细探讨。快速封锚砂浆被应用于郑徐高铁全线,取得了良好效果。

The quality of sealing anchor mortar is one of the key of the ballastless track slab.Rapid sealing anchor mortar,in which a large number of new techniques and equipments are used,is a new type of sealing anchor material,and can be used in the sealing anchor construction of CRTS Ⅲ pre-tensioning track slab.Following aspects of rapid sealing anchor mortar were discussed：technical indicators,construction technique,quality inspection and disease treatment.Rapid sealing anchor mortar was used in Zhengzhou-Xuzhou high speed railway and obtainded good effects.