CORROSION OF REBAR IN POLYESTER FIBER REINFORCED BLENDED CONCRETE USING IMPRESSED CURRENT TECHNIQUESN. K. AMUDHAVALLI AND P. MURTHIAbstract This paper examines the ability of Polyester fiber reinforced blended concrete (PEFRBC) to resist the corrosion of reinforcing steel bars in concrete. The corrosion rate of steel embedded in concrete is evaluated in terms of mass loss of corroded steel bars in concrete. The specimens consisted of concrete cylinders measuring 150 × 300 mm with centrally placed 10 mmdiameter reinforcing bars. Corrosion of steel bars embedded in concrete having compressive strengths of 20, 25, 30, 35 MPa was investigated. The other parameter varying in this investigation is the percentage of fiber content (0.2, 0.4, 0.6, and 0.8). The specimens are subjected to the accelerated corrosion. Corrosion was induced bymeans of impressed current. Following corrosion, the rebar wereextracted to determine the mass loss. The degree of corrosion of the rebar in the concrete specimens decreased as percentages of fiber content and the grade of the concrete increases. No significant difference in resistance towards corrosion was observed in the higher percentages of fiber contents.
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