CONCRETE-PERMEATIVE RUST-PREVENTIVE AGENT

摘要

PROBLEM TO BE SOLVED: To provide a concrete-permeative rust-preventive agent which thoroughly reaches a reinforcing steel material placed in a deep part of reinforced concrete. SOLUTION: The concrete-permeative rust-preventive agent is an aqueous nitrite solution which includes a polyalkylene oxide containing an alkynyloxy group in an amount of 0.01 to 10 wt.%, and a nitrite in an amount of 1 to 40 wt.%. The polyalkylene oxide containing the alkynyloxy group is a polyethylene oxide containing an alkynyloxy group and/or a polypropylene oxide containing an alkynyloxy group. COPYRIGHT: (C)2007,JPO&INPIT