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All Journal Pondasi Scripta Technica: Journal of Engineering and Applied Technology
Eko Muliawan Satrio
Universitas Islam Sultan Agung Semarang
Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Electrical & Electronics Engineering Engineering Environmental Science Industrial & Manufacturing Engineering Mechanical Engineering Physics Social Sciences Transportation

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Journal : scripta technica journal of engineering and applied technology

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Analisis Asphalt Concrete Wearing Course (AC-WC) dengan Penambahan Lateks dan Abu Sekam Padi pada Perkerasan Jalan Prabowo Pujito; Zida Shofwan Azhim; Eko Muliawan Satrio
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/eamtj865

Abstract

Asphalt Concrete Wearing Course (AC-WC) is a wearing layer on flexible pavements that directly receives traffic loads and environmental influences. However, conventional mixtures are still susceptible to plastic deformation, fatigue cracking, and water damage, so material modification is needed to improve their performance. This study aims to analyze the effect of adding latex and rice husk ash on the Marshall characteristics of AC-WC and to determine the optimal mixture variation. Laboratory experimental methods were used with 60/70 penetration asphalt, aggregates in accordance with the 2025 General Specifications for Highways, latex as an additive, and rice husk ash as a filler, with variations of 0%, 4%, 7%, and 9% latex and 0%, 3%, 6%, and 7% rice husk ash. Marshall test results showed that the combination of materials significantly affected the stability, flow, and stiffness of the mixture, while still meeting Bina Marga technical requirements. The best mixture was obtained with 3% latex and 6% rice husk ash, with VIM 4.82%, VMA 21.63%, VFB 78.01%, stability 831.17 kg, flow 3.73 mm, and MQ 222.33 kg/mm, making this variation recommended as the optimal and environmentally friendly AC-WC mixture.    
Evaluasi Sistem Manajemen Keselamatan Konstruksi (SMKK) pada Proyek Pengendalian Banjir Sistem Tenggang Tahap 1 Kota Semarang Andini Nadya Rahmawati; Anggit Tri Yatri; Eko Muliawan Satrio
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/h2kacc31

Abstract

The construction sector has a high rate of workplace accidents, necessitating the implementation of an effective Construction Safety Management System (CSMS) to minimize potential hazards. This study aims to evaluate the implementation of the CSMS in the Phase I Flood Control Project of the Tenggang System in Semarang City, assess its compliance with Ministry of Public Works and Public Housing Regulation No. 10 of 2021, and analyze the level of compliance based on respondents’ perceptions. The method used was quantitative descriptive analysis through the distribution of questionnaires to 25 respondents from the Supervising Consultant team of PT Nindya–Sacna KSO. Data analysis was conducted using validity tests, reliability tests, calculation of mean values, and the Relative Importance Index (RII) using IBM SPSS Statistics. The research results indicate that all statement items are valid and reliable, with very high Cronbach’s Alpha values of 0.975, 0.909, and 0.928. The mean values fell into the high to very high categories, ranging from 4.76 to 4.96. This indicates that the implementation of SMKK has been optimal, in accordance with regulations, and has a good level of compliance, although continuous improvement is still needed to maintain consistency in its implementation.
Co-Authors Andini Nadya Rahmawati Anggit Tri Yatri Ari Sentani Bogi Nugraha Dicky Khoerul Nul Faqih Prabowo Pujito Zida Shofwan Azhim