NON-SHRINKAGE GROUT HAVING FUNCTION PREVENTING TENDON CORROSION FOR PRESTRESSED CONCRETE PSC BRIDGE

摘要

A non-shrinkage grout to be injected into a sheath tube of a pre-stressed concrete (PSC) bridge is made by using an expansion material having shrinkage compensation and an anti-corrosive material having a rustproofing function, By mixing blast furnace slag with cement, it is possible to completely fill the grout in the sheath pipe, and to prevent the shrinkage and expansion of the shrinkage grout, There is provided a shrink-proof grout with a corrosion-preventing function for a prestressed concrete bridge capable of significantly improving durability by preventing the corrosion of the tension member in the PSC bridge due to the rust-preventive function even if there is an uncharged portion.