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All Journal Teras Jurnal International Journal of Engineering, Science and Information Technology Malikussaleh Journal of Mechanical Science Technology TECHSI - Jurnal Teknik Informatika International Journal of Multidisciplinary Approach Research and Science

Yulius Rief Alkhaly

Universitas Malikussaleh

Author-ID : 2414804

Agriculture, Biological Sciences & Forestry Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Social Sciences Transportation Other

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Sifat Mekanis Beton Beragregat Kasar Peluru Plastik Yulius Rief Alkhaly
Malikussaleh Journal of Mechanical Science and Technology Vol 6, No 3 (2022): Malikussaleh Journal of Mechanical Science and Technology
Publisher : Malikussaleh University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/mjmst.v6i3.11027

The purpose of this research is to investigate the feasibility of using bullet plastic as coarse aggregate or as a substitute for air bubbles in the production of lightweight concrete. The mechanical properties of plastic bullet-aggregated concrete substituted with 25%, 50%, 75%, and 100% of the gravel volume were evaluated experimentally. The mechanical properties tested were compressive strength, split tensile strength, and flexural strength. The test results show the mixture of 75% and 100% plastic bullets yields an acceptable density value as a lightweight concrete, with compressive strengths of 15.56 MPa and 14.94 MPa. These findings suggest that using plastic bullets as coarse aggregate or as a replacement for air bubbles is feasible regarded to American Concree Institute (ACI).

HUBUNGAN NILAI KUAT PANTUL ALAT SCHMIDT HAMMER TERHADAP KUAT TEKAN BETON AGREGAT BOLA PLASTIK Alkhaly, Yulius Rief; Mukhlis, Mukhlis; Wardani, Putri Kusuma
TECHSI - Jurnal Teknik Informatika Vol. 12 No. 2 (2020)
Publisher : Teknik Informatika Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/techsi.v12i3.9195

Beton ringan adalah beton yang memiliki densitas lebih kecil dari beton pada umumnya. Padapenelitian ini, telah dihasilkan suatu beton ringan yang menggunakan bola plastik sebagaiagregat kasar. Pengujian terhadap beton agregat bola plastik (BP) dilakukan melalui uji kuatpantul dan uji kuat tekan. Penelitian dilakukan di Laboratorium Teknik Sipil UniversitasMalikussaleh. Benda uji dibuat sebanyak 12 buah berbentuk silender 15 cm x 30 cm, bolaplastik digunakan berdiameter 6 mm. Pada perencanaan campuran beton, agregat kasardigantikan dengan bola plastik sebesar 25%, 50%, dan 100% pada perbandingan volume. Fasyang digunakan 0.48, dengan bahan pengikat: semen Andalas type I. Dari hasil pengujiandiperoleh: untuk kuat pantul beton normal (BN) didapat 32,43 Mpa, untuk kuat pantul betonringan 25% (BP1) didapat 24,39 Mpa, untuk kuat pantul beton ringan 50% (BP2) didapat 22,61Mpa, dan untuk kuat pantul beton ringan 100% (BP3) didapat 20,56 Mpa. Sedangkan hasilpengujian kuat tekan untuk sampel BN didapat 24,72 Mpa, dan untuk sampel BP1, BP2, BP3,didapat hasil kuat tekan masing-masing 17,17 Mpa, 14,91 Mpa, 12,08 Mpa. Hasil nilai kuatpantul dan kuat tekan beton BP menunjukkan penurunanan yang signifikan dari pada nilai kuatpantul dan tekan beton normal. Sedangkan densitas kuat tekan beton BP juga menunjukkanpenurunan yang signifikan dari pada densitas kuat tekan beton normal. Hubungan nilai kuatpantul dan kuat tekan beton dapat dinyatakan dengan persamaan: untuk sampel BN, y =1.4402x - 3.1672, ( R2= 0.9595), untuk sampel BP1, y = 4.677x - 55.926, ( R2= 0.9874), untuksampel BP2, y = 0.2182x + 19.36, ( R2= 0.9839), dan untuk sampel BP3, y = 0.7412x + 11.509, (R2= 0.592). Selanjutnya beton dengan sampel BP1 dan BP2 tidak dapat dikategori sebagaibeton ringan, karena densitasnya masing-masing sebesar 2380 kg/m3 dan 2144 kg/m3.Sedangkan beton dengan BP3 dapat di kategorikan sebagai beton ringan, BP3 mempunyaidensitasnya 1724 kg/m3. Dengan demikian agregat bola plastik berpotensi sebagai agregatuntuk pembuatan beton ringan dengan mutu 12 Mpa. Kelas mutu tersebut tergolong kedalambeton ringan non struktural.

PENGARUH VARIASI JENIS MATERIAL FILLER PADA CAMPURAN ASPAL BETON TERHADAP PARAMETER MARSHALL Alkhaly, Yulius Rief; Fadhliani, Fadhliani; Faisal, Rahmad
TECHSI - Jurnal Teknik Informatika Vol. 12 No. 2 (2020)
Publisher : Teknik Informatika Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/techsi.v12i3.9193

Berdasarkan hasil penelitian yang telah dilakukan di Laboratorium Teknik Sipil yangbertempat di Bukit Indah, maka Kadar Aspal Optimum (KAO) yang digunakan adalah 6,5%untuk campuran aspal beton AC-WC dengan menggunakan abu sekam padi, serbuk kaca danbatu apung sebagai bahan filler modifikasi pengganti filler standar menurut spesifikasiDepkimpraswil (2002). Dari hasil pengujian parameter Marshall menunjukkan bahwapenggunaan batu apung dapat menghasilkan nilai stabilitas tertinggi yaitu 855 kg dari padapenggunaan abu sekam padi dengan hasil 845 dan serbuk kaca yang menghasilkan 830, untuknilai flow tertinggi pada penggunaan serbuk kaca yaitu 3,65 mm. Sedangkan nilai MQ tertinggidihasilkan pada penggunaan abu sekam padi yang mampu menghasilkan nilai MQ 270kg/mm. Penggunaan abu sekam padi, serbuk kaca dan batu apung dapat digunakan untukmenggantikan filler standar dalam campuran aspal beton AC-WC menurut SpesifikasiDepartemen Permukiman Prasarana Wilayah 2002.

Analysis of Flood Peaks Using The Mean Annual Flood Method Hidayat, Acep; Basysyar, Basysyar; Rief Alkhaly, Yulius; Bin Ali, Md Nadir
International Journal of Engineering, Science and Information Technology Vol 2, No 2 (2022)
Publisher : Malikussaleh University, Aceh, Indonesia

The Kedang Pahu river is one of the tributaries of the Mahakam river. The research plan is located in Damai District, West Kutai Regency, East Kalimantan province. Recently, the Damai District and Damai Seberang areas have flooded activities that have caused the surrounding settlements to flood into residential areas and block existing road access. Planning analysis and knowing the annual flood elevation is essential. The analysis uses the method of calculating the mean annual flood (MAF) to search for the average annual flood discharge data and the search for the average annual elevation. Data validation using a simple linear regression method produces a correlation coefficient of 58.67%, or R-value = 0.5867. The analysis results in the value of Q1 or the 1st year period, the mean annual flood rate of the average annual flood discharge is 2576.0695 mÂ³/second and the value associated with the magnifying factor (GF) is the average annual flood discharge rate of Q5=3014,00 mÂ³/ sec, Q10 = 3529.22 mÂ³/sec, Q20 = 4095.95 m/sec, Q50 = 5049.10 mÂ³/sec, Q100 = 5847.68 mÂ³/sec, Q200 = 6852.34 mÂ³/sec, Q500 = 8423.75 mÂ³/sec Q1000 = 9917.87 mÂ³/sec. The analysis results at HEC-RAS 5.07 based on manning analysis showed the elevation values were Q1=18.47m, Q5=18.85m, Q10=18.86m, Q20=19.18m, Q50=19.74m Q100=19.99m. Researchers only show elevations up to Q100 or the 100th year because of limited data and the reviewed data accuracy.

Analysis of Factors Affecting the Effectiveness of Road Maintenance in Pidie Regency Yanis, Muhammad; Hamzani, Hamzani; Alkhaly, Yulius Rief
International Journal of Engineering, Science and Information Technology Vol 4, No 4 (2024)
Publisher : Malikussaleh University, Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52088/ijesty.v4i4.610

Land transportation infrastructure as a medium of accessibility for various community needs that have an important role in economic growth, socio-cultural, political, and other factors of a region or area. In order for road infrastructure to function optimally in improving these factors, several important aspects need to be considered, including having user safety and comfort, environmentally friendly. Land transportation infrastructure is not only a means of mobility but also a tool to achieve better social and economic welfare for the entire community. Given the strategic role of land transportation infrastructure, namely roads, it is very necessary to have security and comfort values so that the efficiency and effectiveness of the infrastructure are indicators to be evaluated. The effectiveness and efficiency of roads are greatly influenced by many factors including road conditions and age, land use, social, economic and policy. community and related parties. The purpose of this study is to analyze the dominant factors that influence the effectiveness of road maintenance in Pidie district. This study uses a qualitative approach to analyze data obtained from respondents which are primary data and the use of SPSS as an analysis tool so that it becomes numerical. The results obtained for the instrument items used are reliable and trustworthy, this is based on the Cronbach's Alpha (CA) value obtained in the range of 0.50 to 0.70. Based on the results and discussions obtained, it can be concluded that all proposed instrument items provide a significant contribution to determining the effectiveness of road maintenance decisions in Pidie Regency with the highest influence instrument factors being economic instruments and road conditions. The coefficient value obtained for the two factors is 5.571 for the economic instrument and followed in second place, namely the road condition instrument item with a coefficient of 3.603.

Optimizing Road Pavement Projects Through Earned Value Concepts Jufriza, Jufriza; Alkhaly, Yulius Rief; Jalil, Abdul
International Journal of Engineering, Science and Information Technology Vol 4, No 4 (2024)
Publisher : Department of Information Technology, Universitas Malikussaleh, Aceh Utara, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52088/ijesty.v4i4.602

Every construction project faces constraints of cost, schedule, and quality that must be managed to achieve the desired objectives. This research aims to control the aspects of time and cost in construction projects by applying the Earned Value Concept and Crash Program methods. The subject of the study is the Preservation of Roads and Bridges project in Bireuen City - BTS, Lhokseumawe/Aceh Utara, Krueng Mane Buket Rata, SP. Krueng Geukeueh - PEL. Krueng Geukeueh (PEL. Lhokseumawe). The data analyzed includes the Budget Plan (RAB), project schedule, and reports on planned and actual work. This data is processed into three main indicators: BCWS, BCWP, and ACWP, which are then analyzed through Schedule Variance (SV), Cost Variance (CV), Schedule Performance Index (SPI), and Cost Performance Index (CPI). The analysis results show that during weeks 22 to 23, the project had a positive Schedule Variance (SV) (0), which then turned negative during weeks 24 to 28, with an average Schedule Performance Index (SPI) of 1.0096, indicating that project execution was ahead of schedule. Meanwhile, the Cost Variance (CV) was positive throughout the project, and the average Cost Performance Index (CPI) was 1.2118, indicating that actual costs did not exceed the budget. The application of the Crash Program method resulted in changes in heavy equipment rental costs and worker wages, from IDR 1,440,469,946.99 over 50 days to IDR 1,853,072,988.06 over 25 days, with a cost increase of IDR 412,603,041.07 and an acceleration ratio of 1.29. This research demonstrates that the Earned Value Concept and Crash Program methods are effective in controlling time and cost in construction projects, thereby helping to achieve better efficiency in project management.

Optimizing Asset Management of Kota Juang Public Market in Bireuen District: A GIS-Based Approach and Community Engagement Jufriadi, Jufriadi; Alkhaly, Yulius Rief; Maizuar, Maizuar
International Journal of Multidisciplinary Approach Research and Science Том 3 № 02 (2025): International Journal of Multidisciplinary Approach Research and Science
Publisher : PT. Riset Press International

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59653/ijmars.v3i02.1521

Managing the assets of the public market in Kota Juang, Bireuen District, must be implemented well to provide an overview of regional wealth, clarify ownership status, safeguard regional goods, and increase regional original income. This research aims to analyze the factors that most influence the less-than-optimal management of public market assets in Kota Juang, Bireuen District, in terms of the role of the market community for good operational sustainability in helping to develop traders' businesses and to find out which infrastructure facilities and infrastructure need to be revitalized. The management of public market assets in Kota Juang, Bireuen District, is optimized by implementing the Geographic Information System/GIS. There are four stages in using the GIS application. The first stage is the data input stage, which includes planning, determining goals, collecting data, and entering it into the computer. Then, the data processing and analysis stage, as well as the output stage, which is the final phase, is presented as a hardcopy map, data tabulation, or a website. The data inputted as attributes in this GIS application is obtained from observations at market locations and related agencies in the form of location maps, Figures of the condition/existing market assets, supporting infrastructure data, and data on traders in the market community. This research uses purposive sampling techniques and data analysis using SWOT analysis. From the results of partial hypothesis testing on building conditions where the t-count = 4.769, while the t-count for facilities and infrastructure is 5.756, this value is greater than the t-table, namely 2.014, so it significantly affects market asset management. The final result of the SWOT analysis is to overcome the problems in the public market area by planning the need for facilities and infrastructure or infrastructure that is no longer suitable so that it can be revitalized and increase the role of market managers by preparing standard operating procedures.

Effects of Curing Conditions and Combined Pozzolanic Material on Compressive Strength of Reactive Powder Concrete Jalalul Akbar, Said; Alkhaly, Yulius Rief; Maizuar, Maizuar; F Harahap, M Ibnu H
International Journal of Engineering, Science and Information Technology Vol 5, No 4 (2025)
Publisher : Malikussaleh University, Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52088/ijesty.v5i4.1107

Reactive Powder Concrete (RPC) is a type of concrete with an extremely dense matrix and high compressive strength. The compressive strength of RPC was examined in this study to evaluate the effects of the combination of silica fume (SF) and rice husk ash (RHA) with up to 50% by weight of cement, which provided the highest compressive strength and low cement content under normal curing and steam curing methods. The results showed that the combination of 5% SF or 10% SF with 25% - 45% RHA reaches compressive strength over 100 MPa at the age of 28 days with a low cement content of about 650 kg/m3 under both curing conditions and maintains the slump flow more than 200 mm. This study demonstrates that SF and RHA can be used up to 50% by weight of cement to produce RPC with a compressive strength of over 100 MPa.

STUDI EKSPERIMEN PENGGUNAAN ABU AMPAS KOPI SEBAGAI MATERIAL PENGGANTI PARSIAL SEMEN PADA PEMBUATAN BETON Alkhaly, Yulius Rief; Syahfitri, Meutia
Teras Jurnal : Jurnal Teknik Sipil Vol. 6 No. 2 (2016): Volume 6 Nomor 2, September 2016
Publisher : UNIVERSITAS MALIKUSSALEH

Abstrak Semen merupakan bahan pengikat agregat dalam pembuatan beton. Semen yang bereaksi dengan air, selain menghasilkan Calcium Silicate Hydrate (CSH) juga menghasilkan senyawa sampingan yaitu kalsium hidroksida (Ca(OH)2). Senyawa Ca(OH)2 memberi dampak buruk terhadap kualitas beton. Untuk mengatasinya, dalam adukan beton ditambah bahan posolan (pozzolanic material) yang mengandung silika (SiO2) yang akan bereaksi dengan Ca(OH)2 untuk menghasilkan CHS sekunder. Material posolanik organik dapat berupa limbah industri pangan (agro waste). Salah satu limbah agro waste yang belum termanfaatkan dengan baik adalah ampas kopi. Pada penelitian ini, abu ampas kopi digunakan sebagai material pengganti sebagian semen. Ampas kopi yang digunakan dibakar dalam furnace pada suhu 700ºC dan kemudian diayak dengan saringan No. 200 (75 mm). Material lain yang digunakan adalah kerikil berasal dari desa Krueng Sawang dan semen Andalas Tipe I. Benda uji berbentuk silinder dengan dimensi 150 mm x 300 mm dengan masing-masing variasi 5 buah benda uji. Kuat tekan rencana beton normal 20 MPa dengan fas 0,484. Pengujian kuat tekan dilakukan pada saat umur beton 56 hari. Hasil pengujian berdasarkan persentase abu ampas kopi 5%, 10%, 15%, dan 25% terhadap volume semen didapat kuat tekan berturut-turut 26,085 MPa, 20,162 MPa, 20,080 MPa, dan 15,358 MPa. Sedangkan kuat tekan beton normal tanpa substitusi abu ampas kopi didapat sebesar 25,406 MPa. Hasil ini menunjukkan bahwa penggantian parsial abu ampas kopi sebesar 5% terhadap semen dapat meningkatkan kuat tekan sebasar 2,67% dari beton normal. Selanjutnya, pada subsitusi 10% dan 15%, hasil kuat tekan masih memenuhi kuat tekan rencana (fc). Kata kunci: semen, abu ampas kopi, posolan, kuat tekan beton.

PENERAPAN METODE MODIFIED ANDREASEN PACKING MODEL PADA RANCANGAN CAMPURAN BETON NORMAL Alkhaly, Yulius Rief
Teras Jurnal : Jurnal Teknik Sipil Vol. 7 No. 2 (2017): Vol. 7 Nomor 2, September 2017
Publisher : UNIVERSITAS MALIKUSSALEH

Perancangan campuran beton (mix design) merupakan upaya untuk menentukan besarnya jumlah semen, agregat halus, agregat kasar, dan air yang akan digunakan dalam 1 m3 adukan guna memperoleh kuat tekan rencana dan kemudahan kerja yang ditetapkan. Aspek keuntungan ekonomis campuran beton sangat ditentukan dari jumlah kandungan semen. Campuran beton dengan packing density yang baik akan menghasilkan jumlah kandungan semen yang lebih sedikit. Penelitian ini bertujuan untuk mengoptimalkan komposisi campuran beton dengan menggunakan metode Andreasen-Andersen packing model berbantuan perangkat lunak EMMA. Hasil penelitian menunjukkan bahwa penggunaan metode Modified Andreasen Packing Model menghasilkan campuran beton berkandungan semen lebih rendah, dan kuat tekan beton pada umur 28 hari lebih tinggi dibandingkan dengan metode SNI 03-2834-2000. Pada mutu beton rencana 15 MPa - 25 MPa, penggunaan semen lebih rendah 6% - 9% dan kuat tekannya meningkat sebesar 6% - 7%. Selanjutnya pada mutu beton rencana 30 MPa - 40 MPa, penggunaan semen lebih rendah 14% - 27% dan kuat tekannya meningkat sebesar 5% - 13%.

Co-Authors Abdul jalil Acep Hidayat Ainun Mardiah Amalia Amalia Amrizal Amrizal Basysyar, Basysyar Bin Ali, Md Nadir Cok Nando Panondang Deddy Ariska F Harahap, M Ibnu H Fadhliani, Fadhliani Fahrurrazi Fahrurrazi Faisal, Rahmad Fitriani Fitriani Hamzani Hamzani Jalalul Akbar, Said Jufriadi Jufriadi, Jufriadi Jufriza, Jufriza Khairullah Yusuf Lis Ayu widari Lis Ayu Widari Maizuar Maizuar Meutia Syahfitri, Meutia Muhammad Yanis Mukhlis Mukhlis Sapriandi, Sapriandi Sayahdin, Sayahdin Wardani, Putri Kusuma Yovi Chandra Zulfahmi Zulfahmi zulfhazli zulfhazli

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