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All Journal JOURNAL SCIENTIFIC OF MANDALIKA (JSM) Scripta Technica: Journal of Engineering and Applied Technology
Juny Andry Sulistyo
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Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Mechanical Engineering Other

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Journal : Scripta Technica: Journal of Engineering and Applied Technology

 1 
Stabilisasi Tanah Lunak Menggunakan Campuran Ferronickle Slag dan Alkali Soma Shaki Hadi Nugraha; Dzulfikar Sani; Lisa Fitriyana; 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/vrm3vy68

Abstract

The Kendal Industrial Park (KIK), Central Java, is characterized by soft clay soil with low bearing capacity, requiring improvement before being used as a construction foundation. This study aims to determine soil classification, analyze the effect of ferronickel slag and alkali (NaOH and KOH) mixtures, and evaluate the potential of these mixtures as soil stabilization materials. The research was conducted experimentally in the laboratory through specific gravity tests, grain size distribution analysis, Atterberg limits, Standard Proctor compaction test, direct shear test, and California Bearing Ratio (CBR) test. The mixture variations used consisted of 10% ferronickel slag combined with alkali solutions of NaOH and KOH at concentrations of 6%, 8%, and 10%. The results showed that the original soil was classified as fine-grained soil with high plasticity and a CBR value of 5.6%, indicating low bearing capacity. The addition of ferronickel slag and alkali reduced soil plasticity and increased soil strength and bearing capacity. Therefore, the mixture of ferronickel slag and alkali has the potential to be used as an environmentally friendly alternative soil stabilization material.  
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
Analisis Sifat Fisik dan Mekanik Paving Block dengan Penambahan Plastik dan Crumb Rubber Benigno Faza Akbari; Muhammad Aufa Ahda Athoillah; 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/ykca8k79

Abstract

Paving blocks are construction materials made from a mixture of cement, sand, aggregate, and water. Typically, paving blocks are molded in square or rectangular shapes and are used as surface coverings for roads, sidewalks, parking lots, and other public areas. One of the reasons why paving blocks are popular is because of their load-bearing ability, durability, and aesthetic appearance. This research aims to analyze paving blocks used in construction. Another objective of the research conducted was to analyze the opportunity of using added materials, namely recycled plastic and crumb rubber in making paving blocks, which aims to produce quality and sustainable products. In experimental research, the first step is to determine the variation in the composition of the additives used. Next, paving blocks are made through a dry mixing process until they are homogeneous, then molded using hexagonal molds and compacted manually. After that, the test objects undergo a curing process for 28 days before testing. Testing of paving blocks includes compressive strength and water absorption tests to determine the effect of adding additives on the quality and performance of the modified paving blocks. The results showed that the addition of plastic and crumb rubber can increase the strength of paving blocks and ensure flexibility and the product itself, reduce production costs and effective use of industrial waste.    
Co-Authors Andi Bongawali Benigno Faza Akbari Dzulfikar Sani Henny Pratiwi Adi Lisa Fitriyana Miruyama Muhammad Aufa Ahda Athoillah Rachmat Mudiyono Soma Shaki Hadi Nugraha Tarekh Al Aziz Zuhair Zuhdi