Elingga, Noviko (2024) Sistem Proteksi Katodik Untuk Pengendalian Korosi Pada Pipa Baja Astm A106. Other thesis, Universitas Islam Riau.

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Abstract

Cathodic protection with forced current is one method of controlling corrosion in iron and steel pipes. This method is carried out by connecting the steel structure to be protected with another metal that has lower electronegativity or by flowing an electric current through an external anode. The forced current cathodic protection method was chosen because it is easy to control. In cathodic protection with forced current, the anode used is an inert material because it has a longer active period. Materials such as platinum, magnets, silicon steel and graphite are usually used in this application. The cathode used is a steel pipe. The aim of this research is to design a forced current protection system (impressed current cathodic protection) for ASTM A106 steel pipes with variable pipes without coating and pipes with coating. The coating used is coaltar epoxy. The dimensions used for ASTM A106 steel pipe are the length of the pipe used is 1.5 m and the pipe diameter is 1 inch. The measurements carried out were measurements of soil pH and soil resistivity where the pipe was buried. On a cathode without coating, the protection current required is greater than on a cathode with a coaltar epoxy coating. Meanwhile, in environmental conditions with different soil resistivity, the higher the soil resistivity, the lower the need for protection current.

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