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All Journal Construction and Material Journal Jurnal Teknik Sipil Cendekia (JTSC)
Putranto, Leksmono S
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Civil Engineering, Building, Construction & Architecture

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ANALISIS PENANGANAN PENGARUH KERUSAKAN JALAN NASIONAL AKIBAT MUATAN BERLEBIH DI PROVINSI LAMPUNG Tosulpa, M. Enriko; Putranto, Leksmono S; Sulistyorini, Rahayu
JURNAL TEKNIK SIPIL CENDEKIA (JTSC) Vol 6 No 2 (2025): July
Publisher : Departement of Civil Engineering, Universitas Winaya Mukti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51988/jtsc.v6i2.348

Abstract

Lampung Province, as the land gateway between Sumatra and Java, plays a vital role in Indonesia’s national road network. With 1,298 km of national roads managed by BPJN Lampung, the region supports high traffic from heavy vehicles. However, these roads face significant damage, primarily due to two factors: poor road management (including planning, execution, supervision, and maintenance) and the frequent passage of ODOL (Over Dimension Over Loading) vehicles. This study investigates the causes and key parameters of road damage in Lampung, aiming to identify the most dominant factors. Data were obtained from interviews, questionnaires, and road section records from relevant stakeholders and analyzed using the Analytic Hierarchy Process (AHP). The findings reveal that ODOL vehicles are the most significant cause of road damage, with a weight of 67%, while the International Roughness Index (IRI) emerged as the most critical parameter, holding a weight of 27%. These results underline the urgent need for tighter regulations on ODOL traffic and the prioritization of IRI as a core measure in assessing road quality. Enhancing monitoring and maintenance based on these insights is essential to improving road durability and ensuring sustainable transportation in Lampung Province.
MODEL PENANGANAN PENGARUH KERUSAKAN JALAN NASIONAL DI PROVINSI LAMPUNG (Studi kasus Jalan Soekarno Hatta Ruas Bakauheni – Tugu Radin Intan Provinsi Lampung) Tosulpa, M. Enriko; Putranto, Leksmono S; Sulistyorini, Rahayu
JURNAL TEKNIK SIPIL CENDEKIA (JTSC) Vol 6 No 2 (2025): July
Publisher : Departement of Civil Engineering, Universitas Winaya Mukti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51988/jtsc.v6i2.349

Abstract

The Lampung Province holds a strategic position as a connecting route between Sumatra and Java, serving as a land logistics gateway between the islands. The national roads in this province play a crucial role in supporting economic efficiency by reducing time and distribution costs. However, the poor condition of road infrastructure—triggered by low pavement quality and excessive loading hinders trade and transportation activities and worsens interregional integration. This study aims to identify and analyze the main parameters causing road damage and to establish priorities for handling national roads in Lampung Province. Data were obtained through interviews, questionnaires, and documentation from relevant stakeholders. The method used is the Analytic Hierarchy Process (AHP). The analysis results indicate six main parameters causing road damage: International Roughness Index (IRI), Pavement Condition Index (PCI), drainage effectiveness, Remaining Service Life (RSL), Average Daily Traffic (LHR), and Vehicle Damage Factor (VDF). Based on AHP weighting, IRI received the highest weight (27%) and is identified as the primary indicator of road damage. The top priority for road maintenance is the Bts Sukamaju – Km 10 Panjang Bandar Lampung section, which stretches for 5 kilometers.
TINJAUAN PENGGUNAAN BERBAGAI BAHAN LIMBAH BERBASIS TUMBUHAN SEBAGAI PEREMAJA TERHADAP SIFAT REOLOGI BITUMEN HASIL EKSTRASI MATERIAL RAP Indah Handayasari; Putranto, Leksmono S; Subagio, Bambang Sugeng; Najid, Najid
Construction and Material Journal Vol. 7 No. 2 (2025): Construction and Material Journal Vol. 7 No. 2 Oktober 2025
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/cmj.v7i2.7865

Abstract

Sustainable innovation in road construction encourages the use of recycled materials, such as Reclaimed Asphalt Pavement/RAP, as an alternative to reduce dependence on new materials and minimize negative environmental impacts. However, RAP materials generally undergo an aging process that causes a decrease in viscoelastic properties, an increase in stiffness, and a decrease in resistance to cracking and deformation. To address these issues, rejuvenators produced from biomass waste - such as rice husks, bagasse, palm oil waste, and other agricultural residues - are being developed as environmentally friendly solution in restoring the rheological properties of RAP asphalt and improving the performance of the asphalt mixture. The results show that plant-based rejuvenators containing lignin with a chemical structure consisting of carbon, hydrogen, oxygen elements, and have active groups such as aromatic ring structures, aliphatic and aromatic hydroxyl groups, and quinone groups very similar in structure to asphalt can rebalance the proportion of malten and asphaltene fractions in aged asphalt. The use of bio-rejuvenators provides performance that results in a decrease in the complex modulus (G⁎) value and an increase in the phase angle (δ), indicating improved flexibility and reduced stiffness of the asphalt, approaching the characteristics of new asphalt. Furthermore, the addition of biojuvenators also positively impacts resistance to rutting and fatigue, while enhancing the workability of the asphalt mixture, especially in low-temperature applications.
STUDI PEMANFAATAN LIMBAH MINYAK JELANTAH SEBAGAI REJUVENATOR PADA CAMPURAN RAP Sepriyanna, Irma; Putranto, Leksmono S; Subagio, Bambang Sugeng; Najid, Najid
Construction and Material Journal Vol. 7 No. 2 (2025): Construction and Material Journal Vol. 7 No. 2 Oktober 2025
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/cmj.v7i2.7895

Abstract

The increasing demand for pavement materials necessitates more sustainable solutions, one of which is the utilization of Reclaimed Asphalt Pavement (RAP) containing aged asphalt from recycled layers. However, the high incorporation of RAP often faces challenges such as increased stiffness, reduced ductility, and degradation of viscoelastic properties due to aging. In this context, waste cooking oil (WCO) has attracted significant attention as an eco-friendly and cost-effective rejuvenator. This study presents a systematic literature review on the application of WCO in RAP mixtures, focusing on its chemical characteristics, effects on rheological and mechanical properties, implementation challenges, and performance enhancement strategies through chemical modification and additive incorporation. The findings indicate that WCO effectively reduces binder viscosity, improves flexibility, enhances low-temperature cracking resistance, and extends the fatigue life of RAP mixtures. However, excessive WCO content may reduce Marshall stability and rutting resistance. Synergistic approaches such as polymer addition, nano-material incorporation, or chemical pre-treatment have proven effective in addressing these limitations. This review highlights WCO’s potential as a sustainable rejuvenator while emphasizing the need for further research on dosage optimization, quality standardization, and long-term performance evaluation to support large-scale industrial implementation.
Co-Authors Bambang Sugeng Subagio Indah Handayasari Najid Najid, Najid Rahayu Sulistyorini Sepriyanna, Irma Tosulpa, M. Enriko