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Journal : Scripta Technica: Journal of Engineering and Applied Technology

Analisis AC-WC Dengan Campuran Bahan Tambah Shell Waste Dan Waste Glass Sebagai Additive Untuk Perkerasan Jalan Nur Rahman; Singgih Aji Saputra; Rachmat Mudiyono
Journal of Engineering and Applied Technology Vol 1 No 2 (2025): December: Scripta Technica: Journal of Engineering and Applied Technology
Publisher : CV SCRIPTA INTELEKTUAL MANDIRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.65310/ze86wb69

Abstract

This study evaluates the performance of Asphalt Concrete-Wearing Course (AC-WC) mixtures incorporating shell waste and waste glass as additives for sustainable pavement applications. The optimum asphalt content was determined at 5.8% using the Marshall method, producing balanced volumetric and mechanical properties that satisfy heavy traffic specifications. Waste glass addition without shell waste increased mixture stiffness but did not consistently achieve optimal stability due to volumetric imbalance. A synergistic effect was observed when shell waste and waste glass were combined. The mixture containing 5% shell waste and 5% waste glass demonstrated the most favorable performance, characterized by higher stability, proportional Marshall Quotient, controlled air void distribution, and improved structural integrity. Increasing shell waste content to 7.5% and 10% did not enhance performance and tended to reduce volumetric balance. Economic evaluation indicates a material cost reduction of approximately 1.72% per kilometer compared to conventional mixtures, without compromising mechanical performance. The findings confirm that the optimal incorporation of shell waste and waste glass is technically feasible and economically beneficial for sustainable AC-WC pavement construction.  
Analisis Asphalt Concrete Wearing Course (AC-WC) Modifikasi Dengan Penambahan Wood Ash Dan Styrofoam Expanded Polystyrene (EPS) Untuk Perkerasan Jalan Pradita Setya Ningtyias; Siti Fatimah; Rachmat Mudiyono
Journal of Engineering and Applied Technology Vol 1 No 2 (2025): December: Scripta Technica: Journal of Engineering and Applied Technology
Publisher : CV SCRIPTA INTELEKTUAL MANDIRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.65310/a7qp5y50

Abstract

This laboratory-based quantitative experimental study evaluated the performance of Asphalt Concrete Wearing Course (AC-WC) modified with wood ash as filler and Expanded Polystyrene (EPS) styrofoam as asphalt additive. The research verified the base binder through penetration testing, yielding an average penetration value of 69.4, confirming the use of 60/70 penetration grade asphalt. Asphalt content was validated using extraction testing, resulting in an average binder content of 5.80%, ensuring consistency between design and actual mixture composition. Marshall testing was conducted to assess mechanical and volumetric characteristics, including stability, flow, Marshall Quotient (MQ), VMA, VIM, and VFB. The results demonstrated that EPS dosage significantly influenced volumetric balance and load resistance within the mixture. Among the evaluated combinations using 4% wood ash and EPS levels of 0%, 0.5%, 1%, and 1.5%, the optimum performance was achieved at 1.5% EPS, which satisfied key Bina Marga 2018 Revision 2 requirements for VIM, VMA, VFB, stability, and flow. However, MQ values remained below specification for all mixtures, indicating limitations in stiffness–deformation ratio and the need for further optimization and durability testing.  
Rekayasa Kinerja Campuran Asphalt Concrete Wearing Course (AC-WC) Berbasis Limbah Biomassa: Studi Eksperimental Modifikasi Palm Kernel Shell dan Dammar Resin terhadap Karakteristik Marshall dan Parameter Volumetrik Danang Wahyu kurniawan; Fathul Hidayat AR Rizqi; Rachmat Mudiyono
Journal of Engineering and Applied Technology Vol 2 No 1 (2026): : June: Scripta Technica: Journal of Engineering and Applied Technology
Publisher : CV SCRIPTA INTELEKTUAL MANDIRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.65310/jan3y995

Abstract

Asphalt Concrete Wearing Course (AC-WC) road pavement functions as a crucial wearing layer to maintain its performance and service life, but conventional asphalt still faces problems with its high cost and dependence on non-renewable natural resources. Therefore, this study analyzes the use of palm kernel shell waste and dammar resin as a modified AC-WC mixture, looking at its Marshall characteristics and suitability to Bina Marga specifications. The method used is an experimental laboratory with variations of palm kernel shells of 0%, 2.5%, 5%, 7.5% plus dammar resin of 0%, 2%, 4%, and 6%. Marshall tests check stability, flow, VIM, VMA, VFA, and MQ according to SNI and Bina Marga. The results show that the addition of both has a positive effect, with the optimum at 7.5% palm kernel shells and 6% dammar resin increasing stability and meeting technical standards, making it highly potential as an environmentally friendly and cost-effective alternative
Analisis Dampak Lalu Lintas Akibat Perbaikan Jalan Majapahit Semarang: Studi kasus Jalan Majapahit, Kota Semarang Tarekh Al Aziz; Zuhair Zuhdi; Rachmat Mudiyono; Juny Andry Sulistyo
Journal of Engineering and Applied Technology Vol 2 No 1 (2026): : June: Scripta Technica: Journal of Engineering and Applied Technology
Publisher : CV SCRIPTA INTELEKTUAL MANDIRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.65310/veqrwf61

Abstract

The growth of urban activities in Semarang City has led to an increase in traffic movement, particularly along Jalan Majapahit, which serves as a primary corridor connecting the city center with residential and industrial areas. Road rehabilitation works on this segment caused lane narrowing, resulting in reduced road capacity and affecting overall traffic performance. This study aims to analyze traffic characteristics and road performance on Jalan Majapahit before and during the road rehabilitation period. The evaluated parameters include traffic volume, side friction, road capacity, degree of saturation (DS), and level of service (LOS), based on the Indonesian Road Capacity Guidelines (PKJI 2023). The research method involved field surveys consisting of vehicle volume counts, side friction observations, and geometric road measurements. The collected data were then analyzed to determine road capacity and degree of saturation under both conditions. The results indicate that before rehabilitation, the degree of saturation reached approximately 0.736, representing relatively stable traffic conditions. However, during the rehabilitation period, the DS increased to 1.192, indicating that traffic demand exceeded road capacity, leading to congestion, reduced vehicle speeds, and traffic queues. Consequently, the level of service deteriorated from category C before rehabilitation to category E during rehabilitation