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All Journal Prosiding SENTIKUIN (Seminar Nasional Teknologi Industri, Lingkungan dan Infrastruktur) JMTS: Jurnal Mitra Teknik Sipil Rekayasa: Jurnal Teknik Sipil Jurnal Civil Engineering Study
Arifianto, Andy Kristafi
Unknown Affiliation
Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Energy Engineering Industrial & Manufacturing Engineering

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INVESTIGASI PEMANFAATAN LIMBAH BATU DAN SERBUK MARMER SEBAGAI SUBSTITUSI AGREGAT PADA PERKERASAN KAKU M. Sa'dillah; Arifianto, Andy Kristafi; Oktaviastuti, Blima; Jemadun, Rosita Oktavia
JMTS: Jurnal Mitra Teknik Sipil Volume 8, Nomor 3, Agustus 2025
Publisher : Prodi Sarjana Teknik Sipil, FT, Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24912/jmts.v8i3.33671

Abstract

Natural resources such as fine and coarse aggregates eventually deplete and are irreplaceable. Therefore, the materials needed to replace aggregates in rigid pavements with marble and stone powder are different. The purpose of this study was to determine the compressive strength and flexural strength of concrete at the ages of seven and twenty-eight days. This study used a quantitative experimental research design. The test objects were reinforced concrete slabs measuring 50 x 12 x 120 with variations of 0%, 15%, 25%, and 35%, as well as cylinders measuring 15 cm and 30 cm. The most ideal value for the compressive strength of used marble powder over a period of 28 days is 15%; the most ideal value for used marble stone is 25%; and only a variation of 0% meets the intended parameters for the combination of used stone and powder. The results of the compressive strength test conducted on marble powder waste concrete, marble stone waste, and a combination of stone waste and powder over a seven-day period did not meet the planned requirements. The flexural strength tests on ordinary concrete yielded deflections of 25% (4.26), 0% (3.93), and 25% (4.71), respectively, using marble powder waste, marble stone, and a combination of stone and powder with maximum load. Abstrak Agregat halus dan kasar merupakan contoh sumber daya alam yang pada akhirnya akan habis dan tidak dapat digantikan. Oleh karena itu, material yang dibutuhkan untuk mengganti agregat pada perkerasan kaku dengan bubuk marmer dan batu berbeda. Tujuan dari penelitian ini adalah untuk mengetahui kuat tekan dan kuat lentur beton pada umur tujuh dan dua puluh delapan hari. Penelitian ini menggunakan desain penelitian eksperimental yang bersifat kuantitatif. Benda uji berupa pelat beton bertulang berukuran 50 x 12 x 120 dengan variasi 0%, 15%, 25%, dan 35%, serta silinder berukuran 15 cm dan 30 cm. Nilai paling ideal untuk kuat tekan bubuk marmer bekas selama periode 28 hari adalah 15%; nilai paling ideal untuk batu marmer bekas adalah 25%; dan hanya variasi 0% yang memenuhi parameter yang dimaksudkan untuk kombinasi batu bekas dan bubuk. Hasil pengujian kuat tekan beton limbah serbuk marmer, limbah batu marmer, dan campuran limbah batu dan serbuk selama tujuh hari tidak memenuhi persyaratan yang direncanakan. Dengan menggunakan limbah serbuk marmer, batu marmer, dan kombinasi batu dan serbuk dengan beban maksimum, diperoleh hasil pengujian kuat lentur pada beton biasa, dengan lendutan masing-masing bervariasi sebesar 25% (4,26), 0% (3,93), dan 25% (4,71).
Analisis Pergerakan Penumpang Angkutan Umum Terhadap Aksesibilitas Di Kota Malang Candra Atma Romadhon, Dicky; Arifianto, Andy Kristafi; M. Sa'dillah
Jurnal Civil Engineering Study Vol. 5 No. 02 (2025): Jurnal Civil Engineering Study
Publisher : Civil Engineering of Universitas Islam Nahdlatul Ulama Jepara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34001/ces.v5i02.1513

Abstract

Public transportation plays a crucial role in supporting urban mobility. In Malang City, public transportation (angkot) faces various challenges, particularly declining service quality and increasing competition from online transportation. This study aims to identify the characteristics of angkot, analyze passenger movement patterns, and plan efforts to improve accessibility. The study employed a quantitative descriptive approach with multiple linear regression analysis using SPSS. Data were collected from 101 respondents at five main terminals using simple random sampling and incidental sampling techniques. The results showed that there were still 17 active routes with MPU/CARRY vehicles with a capacity of 10–12 passengers without a clear departure schedule. Of the 19 bus stops, most were not functioning properly, while angkot fares were not in accordance with regulations. Regression analysis showed that comfort, safety, and facility conditions simultaneously significantly influenced efficiency and connectivity, with a determination value (R²) approaching 1,000. Comfort and safety factors were proven to be dominant in influencing passenger decisions. These findings underscore the need for route evaluation, fleet rejuvenation, and quality improvement so that public transportation services can once again function as an efficient, safe, and easily accessible mode of transportation for all levels of society.
Co-Authors Ama, Ignasius Tamo Blima Oktaviastuti, Blima Candra Atma Romadhon, Dicky De Jesus , Arcelia Dhena, Elvianus Venansius Jehamin, Artoldus Jeharut, Valerianus Jemadun, Rosita Oktavia M Sa’dillah Mendonca, Natalino Oktaviastuti, Blima Pamela Dinar Rahma Pradiatmo, Elias Reis, Jose A P Dos Reis A P Dos Tonsa , Samuel Valdi, Didimus