Studi Eksperimen Pertumbuhan Biofouling Terhadap Spesimen Uji Yang Tidak Bergerak

Pribadi, Singgih Danu (2022) Studi Eksperimen Pertumbuhan Biofouling Terhadap Spesimen Uji Yang Tidak Bergerak. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Tumbuhnya Marine Biofouling pada permukaan konstruksi bangunan laut yang berupa logam, beton concrete atau pada badan kapal dapat menimbulkan beberapa masalah, seperti korosi, meningkatnya koefisien kekasaran, dan penambahan berat. Biofouling laut, atau pertumbuhan organisme laut pada permukaan yang terendam di lautan, dapat memiliki implikasi operasional dan ekonomi yang signifikan untuk kapal dan struktur laut lainnya. Biofouling berpotensi beragam dan berkembang dari keadaan awal lapisan organik dan anorganik yang teradsorpsi melalui pembentukan membran mikroba hingga komunitas tumbuhan dan hewan makroskopik. Penelitian ini dilakukan percobaan terhadap beberapa jenis spesimen yaitu, plat baja dengan anti-corrosion coating, plat baja dengan anti-fouling coating, plat baja sandblast only, PolyVinyl Chloride, dan bambu. Penelitian dilakukan dengan metode uji submersion test pada kedalaman 3meter dan 5meter dibawah air laut. Submersion test dilakukan dalam periode dua kali satu bulan, dan dua bulan. Hasil penelitian menunjukkan terjadi perubahan nilai kekerasan coating pada panel anti-fouling coating, sebelum submersion test kekerasan pada level HB dan setelah dilakukan uji turun pada level B. Nilai coating thickness panel dengan coating anti-corrosion setelah uji submersion kedalaman 3meter terjadi panambahan 72 μm dari tebal awal 998 μm, pada kedalaman uji submersion 5meter terjadi penambahan 144 μm dari tebal awal 824 μm. Nilai coating thickness panel coating anti-fouling setelah uji submersion kedalaman 3meter terjadi pengurangan 49.2 μm dari tebal awal 207.2 μm, pada kedalaman uji submersion 5meter terjadi pengurangan 133.6 μm dari tebal awal 289.6 μm. Pertumbuhan biofouling menambah berat pada setiap panel. Panel PVC terjadi penambahan berat 62.84gram dari berat awal 13.63gram. Berat panel anti-corrosion bertambah 58.66gram dari berat awal 245.65gram. Panel bambu terjadi penambahan berat 45.65gram dari berat awal 23.08gram. Panel steel sanblast only terjadi penambahan berat 23.38gram dari berat awal 222.95gram. Pada panel anti-fouling terjadi penambahan berat 1.66gram dari berat awal 229.65gram.
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The growth of Marine Biofouling on the surface of marine building construction in the form of metal, concrete or on the ship's hull can cause several problems, such as corrosion, increased roughness coefficient, and weight gain. Marine biofouling, or the growth of marine organisms on submerged surfaces in the oceans, can have significant operational and economic implications for ships and other marine structures. Biofouling has the potential to be diverse and evolve from the initial state of organic and inorganic layers adsorbed through the formation of microbial membranes to macroscopic plant and animal communities. This research was conducted to experiment with several types of specimens, namely, steel plate with anti-corrosion coating, steel plate with anti-fouling coating, sandblast only steel plate, PolyVinyl Chloride, and bamboo. The research was conducted using the submersion test method at a depth of 3 meters and 5 meters under seawater. The submersion test was carried out in a period of twice, one month, and two months. The results showed that there was a change in the coating thickness value on the anti-fouling coating panel, before the submersion test hardness at the HB level and after the drop test was carried out at level B. The coating thickness panel value with anti-corrosion coating after the submersion test at a depth of 3 meters there was an increase of 72 m from initial thickness of 998 m, at a submersion test depth of 5 meters there was an addition of 144 m from the initial thickness of 824 m. The value of the coating thickness panel coating anti-fouling after the submersion test with a depth of 3 meters decreased by 49.2 m from the initial thickness of 207.2 m, at the depth of the submersion test of 5 meters there was a reduction of 133.6 m from the initial thickness of 289.6 m. The growth of biofouling adds weight to each panel. The PVC panels added 62.84grams of weight from the initial weight of 13.63grams. The weight of the anti-corrosion panel has increased by 58.66grams from the initial weight of 245.65grams. The bamboo panels added 45.65grams of weight from the initial weight of 23.08grams. Sanblast steel panels only increase in weight of 23.38gram from the initial weight of 222.95gram. On the anti-fouling panel there was an increase in weight of 1.66gram from the initial weight of 229.65gram.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Biofouling, coating, hardness, massa, thickness, profile surface.
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) > TA418.9.C57 Coatings
Divisions:	Faculty of Marine Technology (MARTECH) > Marine Engineering > 36202-(S1) Undergraduate Thesis
Depositing User:	Mr. Marsudiyana -
Date Deposited:	20 Feb 2026 01:10
Last Modified:	20 Feb 2026 01:10
URI:	http://repository.its.ac.id/id/eprint/132528

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