Mahardika, Bayu (2016) Studi Eksperimen Pengaruh Variasi Inhibitor Dan Konsentrasi Inhibitor Terhadap Laju Korosi Dan Penentuan Efisiensi Inhibisi Pada Baja Tulangan Beton St 42 Di Kondisi Lingkungan Laut. Undergraduate thesis, Institut Teknologi Sepuluh Nopember Surabaya.
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Abstract
Korosi pada logam adalah masalah yang tidak bisa dihindari, hanya bisa dihambat. Masalah ini harus diperhatikan secara khusus, karena bisa berdampak pada kerugian materi maupun kerugian teknis. Salah satu cara yang digunakan untuk menghambat korosi adalah dengan penambahan inhibitor. Seperti pada penelitian yang dilakukan pada tugas akhir ini, meneliti pengaruh variasi inhibitor dan konsentrasi inhibitor terhadap laju korosi dan penentuan efisiensi inhibisi pada baja tulangan beton ST 42 di kondisi lingkungan laut. Inhibitor yang akan digunakan adalah sodium nitrit, asam askorbat, dan asam karboksilat, dan variasi konsentrasi inhibitornya adalah 100 ppm, 200 ppm, dan 300 ppm. Larutan induk media korosif yang digunakan adalah larutan garam dengan salinitas 3,5 %. Data dari hasil eksperimen menunjukkan bahwa semakin tinggi konsentrasi inhibitornya maka semakin rendah laju korosinya, serta didapatkan kondisi optimal pengaruh variasi inhibitor dan konsentrasi inhibitor terhadap laju korosi pada baja tulangan ST 42 di kondisi lingkungan laut yang efisiensi inhibisinya tertinggi adalah baja tulangan beton ST 42 pada beton bertulang menggunakan inhibitor sodium nitirt dengan konsentrasi 300 ppm, yaitu sebesar 0,37665 %
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Corrosion on metal is a problem that can’t be avoided, it can only be inhibited. This problem need to be concern, because it could have effect on material and technical losses. One of the ways to inhibit corrosion is to add inhibitors. As the research conducted, the research investigated the influence on the variation of inhibitors and inhibitors consentration to corrosion rate and determination of iinhibition efficiency of concrete reinforcine steel ST 42 in sea water environment. Inhibitor to be used are sodium nitrite, ascorbic acid, and carboxylic acid, and inhibitor consentration variations are 100 ppm, 200 ppm, and 300 ppm. Sea water environment media used is a saline solution with a salinity of 3,5 %. Data form experimental result showed that the higher consentration of inhibitor, the lower corrosion rate, and obtained the optimal condition of the influence on the variation of inhibitors and inhibitors consentration to corrosion rate of concrete reinforcing steel ST 42 in sea water environment that has the highest inhibition efficiency is concrete reinforcing steel ST 42 using sodium ntrite inhibitor with concentration of 300 ppm, that is equal to 0.37665 %.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Additional Information: | RSKe 620.112 23 Mah s |
| Uncontrolled Keywords: | Korosi, baja tulangan beton, laju korosi, efisiensi inhibisi |
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) > TA418.74 Corrosion and anti-corrosives |
| Divisions: | Faculty of Marine Technology (MARTECH) > Ocean Engineering > 38201-(S1) Undergraduate Thesis |
| Depositing User: | EKO BUDI RAHARJO |
| Date Deposited: | 23 Apr 2020 00:45 |
| Last Modified: | 23 Apr 2020 00:45 |
| URI: | http://repository.its.ac.id/id/eprint/75880 |
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