Analisis hubungan pertumbuhan, ukuran, keuntungan dan aset tetap dengan Leverage Ratio

SUSANTO, Donny, Supriyadi, Dr.,MSc

2005 | Tesis | Magister Manajemen

Jalan sebagai prasarana transportasi darat yang berada di pesisir, sangat mungkin digenangi air laut akibat fluktuasi muka air laut. Genangan air laut mempengaruhi durabilitas (durability) beton aspal (AC-WC), sehingga perlu diketahui potensi durabilitasnya. Tujuan penelitian ini adalah untuk mengetahui pengaruh rendaman air laut terhadap durabilitas beton aspal. Pembuatan benda uji dengan variasi kadar aspal 4,5%; 5,0%; 5,5%; 6,0%; dan 6,5% dengan gradasi agregat kasar 64%, agregat halus 29%, dan filler 7% untuk memperoleh kadar aspal optimum (KAO). KAO menjadi dasar pembuatan variasi benda uji, kadar aspal ditambah 0,25%, 0,5%, dan 1% dari KAO untuk melihat potensi durabilitas, dengan cara direndam dengan air laut selama ½, 1, 2, dan 3 jam setiap harinya selama 14 hari berturut-turut berdasarkan temperatur lingkungan, kemudian dilanjutkan pemeriksaan stabilitas benda uji dengan menggunakan alat Marshall. Potensi durabilitas dinilai berdasarkan indeks kekuatan sisa (IKS) dan waktu rendaman. Diperoleh KAO sebesar 5,5% dari berat total agregat dengan nilai VMA sebesar 15,0%, VITM sebesar 5,2%, VFWA sebesar 65,2%, stabilitas 1220 kg, flow 3,5 mm, dan MQ 349 kg/mm, sedangkan pada kadar aspal 6,5% stabilitas 1023 kg, flow 4 mm, dan MQ 256 kg/mm. Stabilitas benda uji berdasarkan nilai KAO (5,5%) setelah direndam air laut selama ½, 1, 2, dan 3 jam berturut turut menghasilkan nilai stabilitas sebesar 1074 kg, 1045 kg, 1043 kg, dan 1037 kg. Penambahan kadar aspal 1% dari KAO (6,5%) terhadap benda uji yang direndaman air laut selama ½, 1, 2, dan 3 jam berturut turut menghasilkan nilai stabilitas sebesar 966 kg, 964 kg, 949 kg, dan 943 kg. Besarnya IKS berdasarkan KAO (5,5%) setelah benda uji direndam air laut selama ½, 1, 2, dan 3 jam berturut turut menghasilkan IKS 88%, 86%, 85%, dan 85%, sedangkan pada kadar aspal 6,5% setelah benda uji direndam selama ½, 1, 2, dan 3 jam berturut turut menghasilkan IKS 94%, 94%, 93%, dan 92%.

Road as ground transportation infrastructure that located in coastal area is possible to be submerged by sea water that caused by fluctuation of sea water surface. Sea water immersion affects the durability of asphalt concrete (AC-WC), so that important to know the durability potency. This research started by making specimens asphalt concrete with asphalt content variation of 4,5%; 5,0%; 5,5%, 6,0%, and 6,5% with 64% of coarse aggregate content, 29% of fine aggregate, and 7% of filler in order to get the optimum asphalt content. Optimum asphalt content is the standard of making specimens, then asphalt content were added by 0,25%; 0,5%; and 1% of optimum asphalt content to know the potency of durability. All the specimens with asphalt content variation of 5,5%; 5,75%; 6,0%; and 6,5% were submerged by sea water. The specimens variation then submerged everyday in the period of ½, 1, 2, and 3 hours during 14 days on enviroment temperature. After 14 days immersion, the specimen stability were tested by Marshall properties. The potency of durability is valued by retained stability indeks. Based on the research result, the optimum asphalt content was 5,5% of aggregate weight total with 15% of VMA, 5,2% of VITM, 65,2% of VFWA, 1220 kg of stability, 3,5 mm of flow, and 349 kg/mm of MQ, meanwhile at the 6,5% of asphalt content, 1022 kg of stability, 3,4 mm of flow, and 256 kg/mm of MQ. The specimen stability at the optimum asphalt content (5,5%) aft er submerged by sea water in the period ½, 1, 2, and 3 hours were respectively obtained 1074 kg, 1045 kg, 1043 kg, and 1037 kg of stability. The addition of 1% asphalt content of optimum asphalt content to the specimen that submarged sea water in the periods of ½, 1, 2, and 3 hours were respectively obtained 966 kg, 964 kg, 949 kg, and 943 kg of stability. The retained stability indeks at optimum asphalt content after submerged by sea water in the periods of ½, 1, 2, and 3 hours were respectively obtained 88%, 86%, 85%, and 85%. Meanwhile, at the 6,5% after submerged by sea water in the period ½, 1, 2, and 3 hours were respectively obtained 94%, 94%, 93%, and 92% of retained stability indeks.

Kata Kunci : Manajemen Keuangan,Rasio Keuangan,Leverage Ratio, durability, stability, and flow