2009•Transport StandardizationRequires access
Application of Metal Bellows with Vacuum Grouting Techniques in Construction of Prestressed Bridge
Lihua Zhang
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Abstract
In the post-tensioned prestressed concrete structure, we usually fill the slurry up gap between reserved channels and prestressed tendons to solve the problems of anti-corrosion of prestressed reinforcement and work together between prestressed reinforcement and structural concrete, so duct grouting quality will affect the durability and safety of prestressed concrete structures. Vacuum grouting technique is an effective way to solve the problem of incomplete grouting.