Analisis Rubber-Fiber Sebagai Media Coating Terhadap Korosi Pipeline Kwg 20 - Sp Iii Kawengan Pertamina EP Cepu

Supriyanto, Agus Dwi (2026) Analisis Rubber-Fiber Sebagai Media Coating Terhadap Korosi Pipeline Kwg 20 - Sp Iii Kawengan Pertamina EP Cepu. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Korosi pada pipa ASTM A106 jalur distribusi crude oil KWG 20–SP III Kawengan Pertamina EP Cepu dapat menurunkan integritas dan umur pakai pipa. Penelitian ini bertujuan menganalisis karakteristik korosi serta mengevaluasi efektivitas rubber-fiber coating dibandingkan coating standar Pertamina. Pengujian dilakukan menggunakan metode weight loss dalam larutan HCl 1 M dengan waktu perendaman 2, 4, dan 6 hari, pengamatan makro, serta pull-off test. Hasil penelitian menunjukkan bahwa spesimen tanpa coating memiliki laju korosi tertinggi sebesar 8,57 mmpy pada perendaman 6 hari. Coating standar menurunkan laju korosi menjadi 2,54 mmpy atau 70,4% lebih rendah dibandingkan tanpa coating. Sementara itu, rubber-fiber coating menunjukkan laju korosi terendah, yaitu 0,086–0,187 mmpy, dengan penurunan laju korosi lebih dari 97% dibandingkan tanpa coating dan sekitar 93% dibandingkan coating standar. Pengamatan makro menunjukkan spesimen tanpa coating mengalami pitting corrosion, sedangkan coating standar dan rubber-fiber coating didominasi uniform corrosion dengan tingkat kerusakan yang lebih rendah. Hasil pull-off test menunjukkan nilai adhesi rubber-fiber coating sebesar 2,64 MPa/s, lebih tinggi 29,41% dibandingkan coating standar Polyken 1027 sebesar 2,04 MPa/s. Dari sisi ekonomi, rubber-fiber coating memiliki biaya pelapisan Rp180.000/m, lebih rendah dibandingkan coating standar Rp239.000/m, sehingga memberikan penghematan sebesar 24,69%. Berdasarkan hasil penelitian, rubber-fiber coating terbukti lebih efektif dalam menghambat korosi, memiliki daya lekat yang lebih baik, serta lebih ekonomis dibandingkan coating standar, sehingga berpotensi menjadi alternatif proteksi pipa pada lingkungan korosif.
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Corrosion in ASTM A106 steel pipelines used in the KWG 20–SP III crude oil distribution line at Pertamina EP Cepu can reduce pipeline integrity and service life. This study aims to analyze the corrosion characteristics and evaluate the effectiveness of rubber-fiber coating coMPa/sred to Pertamina's standard coating. The tests were conducted using the weight loss method in a 1 M HCl solution with immersion periods of 2, 4, and 6 days, macro observations, and pull-off testing. The results showed that the uncoated specimen exhibited the highest corrosion rate of 8,57 mmpy after 6 days of immersion. The standard coating reduced the corrosion rate to 2,54 mmpy, representing a 70,4% reduction coMPa/sred to the uncoated specimen. Meanwhile, the rubber-fiber coating demonstrated the best performance, with corrosion rates ranging from 0.086 to 0.187 mmpy, reducing the corrosion rate by more than 97% coMPa/sred to the uncoated specimen and approximately 93% coMPa/sred to the standard coating. Macro observations revealed that the uncoated specimen experienced pitting corrosion, whereas the standard coating and rubber-fiber coating specimens were dominated by uniform corrosion with lower levels of surface damage. The pull-off test showed that the rubber-fiber coating achieved an adhesion strength of 2.64 MPa/s, which was 29.41% higher than the standard Polyken 1027 coating at 2.04 MPa/s. From an economic perspective, the rubber-fiber coating cost IDR 180,000/m, lower than the standard coating cost of IDR 239,000/m, resulting in a cost saving of 24.69%. Based on these findings, the rubber-fiber coating proved to be more effective in inhibiting corrosion, provided better adhesion strength, and offered greater economic benefits than the standard coating, making it a promising alternative for pipeline protection in corrosive environments.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Korosi, Corrosion, Laju Korosi, Corrosion Rate, ASTM A106, Rubber-Fiber Coating, Weight Loss, Uji Makro, Macro Test, Pull-Off Test. Corrosion, Corrosion Rate, ASTM A106, Rubber-Fiber Coating, Weight loss, Macro Test, Pull-off test
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) > TA418.74 Corrosion and anti-corrosives T Technology > TA Engineering (General). Civil engineering (General) > TA418.9.C57 Coatings T Technology > TA Engineering (General). Civil engineering (General) > TA467 Iron and Steel Corrosion and protection against corrosion
Divisions:	Faculty of Vocational > Mechanical Industrial Engineering (D4)
Depositing User:	Agus Dwi Supriyanto
Date Deposited:	21 Jul 2026 00:52
Last Modified:	21 Jul 2026 00:52
URI:	http://repository.its.ac.id/id/eprint/135801

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