000 01690nab a2200205 4500
005 20260520000923.0
008 260224s2011 xxu
245 0 0 _aActive protection of fiber-reinforced polymer-wrapped reinforced concrete structures against corrosion
260 _a
_b
_cfeb. 2011
270 _a22/02/2011 ; 22/02/2011
300 _a11 p. ; 025002
520 _aTranscripción del resumen del autor. Large numbers of reinforced concrete (RC) structures that have been damaged from corrosion of steel reinforcements are rehabilitated with fiber-reinforced polymer (FRP) composites. This paper investigates active protection of the steel embedded in concrete that is treated with surface-bonded carbon FRP. The electrically conductive carbon fiber is used as an anode while the reinforcing bar is used as a cathode. Concrete cylinder specimens with embedded steel bars are immersed in salt water, and anodic current is passed through the reinforcement to initiate cracking in concrete as a result of accelerated corrosion of steel. Carbon FRP sheets have been bonded adhesively to the cylinders. The adhesive has been modified to impart electrical conductivity. Specimens were exposed to a highly corrosive environment for a specified time. Pullout strength, mass loss, potentiodynamic scans, and the half-cell potential of steel are reported as metrics of performance of the samples. The proposed technique has been very effective in retarding the corrosion of steel.
581 _a2
773 0 _tCorrosion
_g67
942 _cARTICULO
100 1 _aGadve, S.
_944597
100 1 _aMukherjee, A.
_944598
100 1 _aMalhotra, S.N.
_944599
999 _c173473
_d173473