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All Journal Turbo : Jurnal Program Studi Teknik Mesin Cantilever: Jurnal Penelitian dan Kajian Bidang Teknik Sipil International Journal on Education Insight
Pasayu, Deliansyah
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Civil Engineering, Building, Construction & Architecture Education Engineering Languange, Linguistic, Communication & Media Mathematics Mechanical Engineering Transportation Other

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Pemanfaatan Recycling Asphalt untuk Lapisan AC-WC dengan Penambahan Material Bottom Ash pada Perkerasan Lentur: Utilization of Recycling Asphalt for AC-WC Layers with The Addition of Bottom Ash Material to Pavement Pasayu, Deliansyah; Arliansyah, Joni; Kadarsa, Edi
Cantilever: Jurnal Penelitian dan Kajian Bidang Teknik Sipil Vol. 12 No. 1 (2023): Cantilever
Publisher : Department of Civil Engineering and Planning, Faculty of Engineering, Sriwijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35139/cantilever.v12i1.182

Abstract

Increasing road construction by adding a thick layer of asphalt on flexible pavement can cause problems, where the more viscous the asphalt layer, the higher the road will be than the houses. In addition, limited natural resources and large-scale use can damage the environmental system and make raw materials increasingly scarce, and their prices continue to increase. This research aims to show that recycled asphalt and bottom ash materials can be reused for flexible pavements. Researchers used experimental methods in the laboratory by testing using the Marshall Test. The results of this study indicate that the asphalt resistance based on the compressive strength of the asphalt mixture of recycled materials and the combination of recycled materials and bottom ash of 10% and 15% so that the values of VMA, VFA, Stability, Meltability, and MQ values ​​obtained from the Marshall Test according to with the General Specifications of Highways of the Ministry of Public Works. It was obtained from the provisions of the physical and mechanical test results of Bottom Ash sourced from the Petra UK Road Materials Laboratory Research with the bottom ash parameter passing the sieve of 18.2%. From the results of all asphalt tests, it is known that the addition of bottom ash to asphalt recycling where the extracted material from recycled asphalt (recycled) both asphalt and the aggregate material itself cannot be reused for flexible pavement layers. This is because the condition of asphalt recycling is old, and the strength of the material itself is weak, so it cannot last long if it is reused.
PERBANDINGAN PENGARUH KECEPATAN ARUS AIR TERHADAP LAJU KOROSI DAN KEKERASAN PADA ALUMUNIUM DAN BAJA KARBON SEBAGAI PROTOTIPE PLAT BODY KAPAL MS, Firdaus; Saud, Eddy; Pasayu, Deliansyah; Yosieguspa, Yosieguspa; Hidayat, Aldi; Febriyanto, Agung
TURBO [Tulisan Riset Berbasis Online] Vol 14, No 1 (2025): TURBO : Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v14i1.4095

Abstract

This study aims to determine the comparison of the effect of air flow velocity on the corrosion rate and hardness of aluminum and carbon steel materials. This study is an experimental study using specimens, namely Aluminum 6061 and low carbon steel AISI 1018. The results showed that 1) the immersion current velocity for 2 days obtained the following results, for the speed with a distance of 12 cm from the dynamo, a speed of 0.073 m / s was obtained for aluminum. Something that is not much different is also obtained for the speed of low carbon steel where with a distance of 12 cm from the dynamo, a speed of 0.075 m / s was obtained. 2) The difference in weight between before and after immersion in the specimen shows that in aluminum the weight difference is smaller than the weight difference in low carbon steel. 3) The corrosion rate of low carbon steel is higher than aluminum. This shows that aluminum is more resistant to corrosion
The role of engineering-related attitude and learning interest on mechanical reasoning: A structural equation modeling study MS, Firdaus; Pasayu, Deliansyah
International Journal on Education Insight Vol. 7 No. 1 (2026)
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/ijei.v7i1.15300

Abstract

The results of previous research have not revealed the factors that influence mechanical reasoning, as a preparatory step to improve the mechanical reasoning abilities of engineering students. Based on this, the purpose of this study is to determine a factor model of engineering-related attitude and interest in learning in influencing mechanical reasoning. This study used a cross-sectional study design. The sampling technique used was purposive sampling, involving 30 mechanical engineering students and 72 civil engineering students from the Faculty of Engineering at Universitas Islam Ogan Komering Ilir Kayuagung. The study was conducted using a questionnaire with four Likert-type scale options. The questionnaire consisting of 13 items on mechanical reasoning, 8 items on engineering-related attitudes, and 8 items on interest in learning. The research data were analyzed using Structural Equation Modeling (SEM) using the SmartPLS4 application. SEM analysis involves two stages: measurement model testing and structural model evaluation. Overall, the results of the PLS-SEM model evaluation show that all indicators have met convergent validity and reliability, the independent variables do not experience multicollinearity, 42.1% of the variation in the mechanical reasoning variable can be explained by the relationship between the indicators that form the construct, and both engineering-related attitudes and learning interests are important and significant factors in influencing mechanical reasoning ability. This study contributes to the existing literature in mechanical reasoning by providing an empirically validated structural model that clarifies the significant roles of engineering-related attitudes and learning interest in explaining variations in students’ mechanical reasoning ability.
Co-Authors Agung febriyanto Edi Kadarsa, Edi Hidayat, Aldi Joni Arliansyah MS, Firdaus Saud, Eddy Yosieguspa Yosieguspa, Yosieguspa