The key points for the construction control of fiber reinforced concrete sealing layer on high-speed railway subgrade are introduced.By using a self-made concrete leveling device,the drainage slope is controlled to ensure accurate slope rate and smooth drainage of the sealing layer,and propose a post expansion joint cutting process to improve the quality of expansion joints.The causes of common quality defects such as concrete cracks and water accumulation in the sealing layer is analyzed and disease prevention measures and key process control parameters are proposed.
关键词
高铁路基/封闭层/纤维掺量/后置法切缝/嵌缝/质量控制/缺陷预防/耐久性
Key words
high speed railway roadbed/sealing layer/fiber content/post joint-cutting/caulking/quality control/defect prevention/durability
维普
万方数据