The Cr content bar and the reinforced concrete structure null for the reinforcing rod C where the inside of the concrete is superior

摘要

PROBLEM TO BE SOLVED: To provide a Cr-containing bar steel for a reinforcing bar which causes no collapse of a concrete structure resulted from the corrosion of a reinforcing bar, requires no severe limitation on operation as shown in an epoxy- coated reinforcing bar, and is remarkably inexpensive compared with the case of SUS 304, SUS 316 or the like, and a reinforcing bar concrete structure using the steel.;SOLUTION: The bar steel for a reinforcing bar has a steel composition containing, by mass, 0.001 to 0.3% C, 0.001 to 0.3% N, 0.1 to 4.0% Si, 0.1 to 4.0% Mn, 5.0 to 15.0% Cr, 0.01 to 1.0% Co, 0.04% Al, 0.04% P and 0.03% S, and the balance Fe with inevitable impurities.;COPYRIGHT: (C)2002,JPO