Using electroless nickel to coat reinforcing steel in chloride contaminated concrete

Conference · Thu Dec 31 04:00:00 EST 1998

OSTI ID:351787

Sanchez, M A; Parra, L A; Perez, O A; Rincon, O de ^[1]

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1. Univ. del Zulia, Maracaibo (Venezuela)

This work is a study of the behavior of steel rebar coated by electroless nickel in chloride-contaminated concrete. The steel rebars were coated in an electroless nickel bath for 1, 2 and 3 hours. They were then subjected to heat treatment at 400 C for periods of 1, 2 and 3 hours. The nickel-coated rebars were embedded in concrete samples with NaCl concentrations at 0.00; 0.10; 0.15 and 0.20 %, based on concrete weight. Their behavior was evaluated by measurement of potentials, polarization resistance, potentiodynamic polarization curves, electrical resistance and visual inspection. Corrosion rates were less than 0.01 {micro}A/cm{sup 2} after 40 months` testing.

• OSTI ID: 351787
• Report Number(s): CONF-980316--
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CHLORIDES
CORROSION
CORROSION PROTECTION
CORROSIVE EFFECTS
HEAT TREATMENTS
NICKEL
PROTECTIVE COATINGS
REINFORCED CONCRETE
STEELS