Technology for Steam Curing and Pressure Grouting of Concrete Box Girders in Dehui for Harbin-Dalian Passenger Railway Line

The paper,based on the experience in prefabrication of box girders in Dehui Box Girder Precasting Yard for Harbin-Dalian passenger railway line,introduces the technology for steam curing and pressure grouting for the concrete box girders as well as the contradictions between the existing technology and the traditional pressure grouting method and the im-provement of the pressure grouting technology.The experience on site indicates that the technologies adopted have achieved sat-isfactory results and can provide references for similar projects.