HIGH PERFORMANCE GROUT FOR PRESTRESSED CONCRETE(PSC) BRIDGE

摘要

The present invention relates to a high performance grout for pre-stressed concrete (PSC) bridges. The present invention uses a shrinkage suppressing material capable of exerting surface tension degradation and shrinkage compensation mechanism to suppress the bleeding, shrinkage, and expansion from the initial stage to ensure the stable adhesion between a concrete structure and a tension member and tension member as well as fully filling the grout on the inside of a sheath pipe. Accordingly, the present invention can prevent the corrosion of the tension member in the PSC bridges to enhance the durability significantly.