Reduction in Chloride Penetration by Use Of Steel Mill Scrap in Concrete

Corrosion is one of the major drawbacks of the use of Steel as reinforcement in Concrete (RCC). The rate of Corrosion can be found by performing Rapid Chloride Penetration Test (RCPT) according to ASTM – C 1202. This test is conducted on a sample of Concrete of Cylindrical shape, of 50 mm height and 100 mm diameter, which is cured for 28 and 56 days. The chloride penetration value helps in determining the rate of corrosion of Concrete. In this project, we aim to reduce the chloride penetration value by addition of Steel mill scrap in Concrete. Four samples were prepared, namely, Control mix, 10 kg/cu.m addition, 20 kg/cu.m addition and 30 kg/cu.m addition of the Steel mill scrap. The Control mix was prepared to act as a benchmark for the Chloride Penetration value. The test was conducted, and the results showed a reduction in Chloride penetration value as the quantity of the Steel mill scrap was increased.