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Silvia Gabrina Tonyes
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Program Studi Magister Teknik Sipil Universitas Udayana Jalan P.B. Sudirman, Denpasar, Bali, Indonesia
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INDONESIA
Jurnal Spektran
Published by Universitas Udayana
ISSN : 23022590     EISSN : 23022590     DOI : -
Core Subject : Science, Social, Engineering,
Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Engineering Environmental Science Transportation
Jurnal Spektran publishes the results of research/studies as well as review articles from students, academics, and practitioners in civil engineering area that covers topics on structural engineering, construction management, transportation, geotechnical, water resources, and environment studies.
Arjuna Subject : Teknik (semua kategori) - Teknik Sipil dan Struktur
Articles 2 Documents
 1 
PARADOKS ADOPSI BIM DI INDONESIA: TINJAUAN SISTEMATIS ATAS EFISIENSI, HAMBATAN, DAN IMPLIKASI KEBIJAKAN I Kadek Badradnyana Wirapraja Mahatama; I Putu Ari Sanjaya; Anak Agung Diah Parami Dewi
Jurnal Spektran Vol. 13, No. 2, Juli 2025
Publisher : Program Studi Magister Teknik Sipil Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/

Abstract

The Indonesian construction industry is at a critical juncture, with government mandates officially encouraging the adoption of Building Information Modeling (BIM) to enhance productivity. However, a significant paradox persists: despite strong evidence of BIM's substantial efficiency benefits, its widespread adoption remains slow and fragmented. This study investigates this paradox through a systematic literature review (SLR) of 79 empirical studies conducted within the Indonesian context. The analysis confirms that BIM offers measurable improvements, including up to 50% time savings during the planning phase and significant cost avoidance from rework, amounting to hundreds of millions of rupiah. Conversely, the study identifies a set of deeply rooted systemic barriers, categorized using the Technology–Organization–Environment (TOE) framework. The most prominent barriers include high initial investment costs (Organisational), a severe shortage of skilled professionals (Organisational), and limited market demand from clients (Environmental). The persistence of this paradox is explained by a cyclical reinforcement of these barriers, a dynamic captured by Institutional Theory, which describes how entrenched norms resist innovation, and Technology Adaptation Theory, which highlights the misalignment between global BIM platforms and local standards (SNI). In contrast to pioneer countries like the UK, Indonesia's BIM mandate lacks comprehensive technical standards, resulting in partial implementation. This study proposes a dual-pronged strategy to break the cycle: top-down government intervention through the development of national standards and a localised BIM component library, and bottom up, market-driven adoption of collaborative contracting models such as Integrated Project Delivery (IPD) to align stakeholder incentives.
ANALISIS KINERJA FILTRASI ARANG DAN IJUK PADA INSTALASI PEMANENAN AIR HUJAN (IPAH) KOMUNAL SEBAGAI UPAYA PENINGKATAN AKSES AIR BERSIH DI DESA TIHINGAN, KABUPATEN KLUNGKUNG, BALI Febryan Aristarchus Rajagukguk; Ida Bagus Made Baskara Andika; Cokorda Istri Niti Laksmi Dewi; Rahma Swari Ramadhani; Fanni Ibrahim Sholeh Siregar; Michael Hesy Kurnia
Jurnal Spektran Vol. 13, No. 2, Juli 2025
Publisher : Program Studi Magister Teknik Sipil Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/

Abstract

The decline of green open space and uneven water distribution resulted in limited access to clean water in Tihingan Village, Banjarangkan District, Klungkung Regency. This condition poses challenges for fulfilling the community’s basic needs for consumption and hygiene-sanitation. Communal Rainwater Harvesting Installation (Instalasi Pemanenan Air Hujan/IPAH) is proposed as a strategic alternative of appropriate technology in clean water provision. Raw rainwater often does not meet clean water standards, thus requiring an effective and affordable filtration process. This study aims to analyze the performance of charcoal and palm fiber filtration media in improving the quality of harvested rainwater in communal IPAH to meet Class I clean water standards. A descriptive-comparative method with an experimental laboratory approach was employed. Rainwater samples were collected before (influent) and after filtration (effluent). Tested parameters included pH, Escherichia coli content, Total Suspended Solids (TSS), and ammonia (NH₃). The filtration media consisted of a combination of locally sourced charcoal and palm fiber. Results showed that the filtration effectively reduced TSS, decreased E. coli content to meet quality standards, and lowered ammonia to safe levels, with improved pH levels. The water quality after filtration complied with Class I clean water standards and was suitable for hygiene and sanitation purposes. This system proved effective, inexpensive, environmentally friendly, and supported sustainable clean water provision while providing local economic benefits. Filtration using charcoal and palm fiber media can be a practical and replicable model to provide clean water in similar regions.

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