Volume: 2 Issue 2 [February 2019]

Article:Corrosion of Steel in Concrete Due To Chloride and Sulphate Attack

Author: Md. Shariful Islam

Volume: Volume 2, Issue 2; February-2019

DOI: 2019 : 2(2) : 65-74

Abstract: Recently, the corrosion of concrete structures has received considerable attention related to deterioration of sea-side and industrial-side structures, such new airport, bridges, and nuclear power plants, etc. In this regards, many studies have been done on the chloride and sulphate attack in concrete structures. An experimental study is carried out on the corrosion behavior of st bar which is placed at the center of the concrete block (size 6in*4in*4in). These blocks are submerged in chloride and sulphate ion solution for weight loss measurement due to corrosion. In this experiment test was carried out using plain steel bar of dimension 8mm in diameter and 150 mm in length. The present study allows a more realistic assessment of durability for such concrete structures which is subjected to the combined attack of both chloride and sulphate. The test results indicate that, the corrosion rate due to the attack of chloride ion is more than the attack of sulphate ion. The corrosion rate due to the attack of chloride and sulphate ion is a linear function. The purposes of the study is to explore the influences of chloride and sulphate attack of concrete structures.

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