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Putu Ariawan
Universitas Pendidikan Nasional
Arts Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Mathematics Social Sciences Transportation Other

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ANALISIS PERBANDINGAN EFISIENSI BIAYA DAN WAKTU SALURAN DRAINASE U-DITCH PRACETAK DENGAN BETON KONVENSIONAL: (Studi Kasus Proyek Drainase di Desa Bresela, Kabupaten Gianyar) I Gusti Ngurah Putu Dharmayasa; Komang Agus Gunawan; I Komang Agus Ariana; Decky Cipta Indrashwara; Putu Ariawan
Jurnal Teknik Gradien Vol 18 No 02 (2026): JURNAL TEKNIK GRADIEN (ON PROGRESS)
Publisher : Fakultas Sains dan Teknologi Universitas Ngurah Rai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47329/teknikgradien.v18i02.1817

Abstract

The selection of drainage construction methods requires consideration of cost efficiency and construction duration. This study compares the direct costs and construction durations of precast U-Ditch and conventional concrete methods using cyclopean concrete reinforced with wiremesh for a 109.2 m drainage project on Bresela Road, Payangan District, Gianyar Regency, Bali, Indonesia. A quantitative comparative approach was employed using field data, construction drawings, cost estimates, and project schedules. Cost calculations were based on the 2025 Unit Price Analysis for Gianyar Regency and Ministry of Public Works and Housing Regulation No. 8 of 2023. The results indicate that the precast U-Ditch method requires 15 days, compared with 41 days for the conventional method. Thus, the precast method reduces the calculated construction duration by 26 days, equivalent to a time efficiency of 63.41%. However, its direct cost of IDR 148,682,138.91 is higher than the conventional method's cost of IDR 127,349,690.70. The difference of IDR 21,332,448.21 indicates that the conventional method is 14.35% less expensive than the precast method. Therefore, method selection should reflect project priorities, particularly faster construction or lower direct costs.
Co-Authors AAN. Oka Suryadinatha Agus Ariana, I Komang Billy Chris Hutama Pasaribu Budiarnaya, Putu Decky Cipta Indrashwara Dewa Ayu Putu Adhiya Garini Putri Fany Hasbhi Noerangga I Gde Eka Dharsika I Gede Fery Surya Tapa I Gede Swasdita I GNN Wismantara I Gusti Lanang Bagus Eratodi I Gusti Ngurah Nyoman Wismantara I Gusti Ngurah Putu Dharmayasa I Gusti Putu Puspasari I Komang Mardiana I Made Mangku Rangin Wijaya I Nengah Riana I Putu Budi Arnaya I Wayan Dikse Pancane I Wayan Gede Darma Yoga Ida Bagus Suryabrata Iqbal Wahyudi Kadek Pasek Pangestu Ketut Anjani Ketut Hedi Mahayana Komang Agus Gunawan Made Widya Jayantari Made Yeni Anggreni Mario Stevano Lewa Ni Nyoman Dimastari Nuraga, Ketut Nyoman Gede Adrama Ravika Nur Melinda Roger Bastiano Lica-Lica Dias Marcal Teodósio Gil Soares da Costa