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HDPE Plastic Waste as a Fine Aggregate Substitute in the Production of CLC Lightweight Bricks: An Experimental Study Mg, Taufiqurrahman; Nursyamsi, Nursyamsi; Tarigan, Johannes; Bakara, Ricky
Syntax Literate Jurnal Ilmiah Indonesia
Publisher : Syntax Corporation

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36418/syntax-literate.v10i7.61290

Abstract

This study aims to examine the utilization of High-Density Polyethylene (HDPE) plastic waste as a partial substitute for fine aggregate in the manufacture of Cellular Lightweight Concrete (CLC) lightweight bricks. The method used is a laboratory experiment with variations in the addition of HDPE of 0%, 5%, 10%, and 15% to the CLC mixture. Each variation was tested to determine the compressive strength, dry unit weight, and water absorption capacity after curing for 28 days. The results showed that the addition of HDPE affected the mechanical characteristics of lightweight bricks. The compressive strength decreased with increasing HDPE percentage, where the highest value was recorded at the 0% HDPE variation of 1.16 MPa and the lowest at the 15% variation of 0.92 MPa, below the SNI 8640-2018 standard. The highest dry unit weight was achieved at a composition of 5% HDPE of 3.32 kg/m³, indicating optimal density. However, the addition of HDPE also increased water absorption, with the highest average of 25.08% at the 15% variation. Thus, the use of HDPE waste as a substitute material shows environmentally friendly potential, but needs to be optimized so as not to reduce the structural quality of CLC lightweight bricks.
Effect of Compressive Strength and Tensile Strength Value on Fiber Concrete Using Bendrat Wire Fibers Clinton Purba, Yosia; Tarigan, Johannes; Nursyamsi, Nursyamsi; Bakara, Ricky
Jurnal Indonesia Sosial Teknologi Vol. 5 No. 9 (2024): Jurnal Indonesia Sosial Teknologi
Publisher : Publikasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59141/jist.v5i9.4627

Abstract

Concrete is a material used in modern construction and is a very important component in the manufacture of structures. Concrete has advantages, but also disadvantages, namely low tensile strength. To increase the tensile strength of concrete, fibers are added to the mix. One of the efforts made to increase the tensile strength of concrete is the addition of fibers to the fiber-concrete mixture. The purpose of this study is to examine the compressive strength and tensile strength values in fiber concrete if added with variations in fiber addition. An innovation in increasing the value of mechanical quantities in concrete is the use of bent wire fibers as a mixture in fiber concrete. This material is taken from former pieces in construction projects to connect steel reinforcement with Sengkang reinforcement and is also widely found in building shops. The fibers were also analyzed for microstructure using SEM (Scanning Electron Microstructure) tools. The length of this bent wire fiber is 13 mm with a diameter of 0.82 mm and has a minimum tensile strength value of 334.5 MPa. The variations in the addition of these bent wire fibers are 0%, 3%, 6%, and 9% of the total weight of the steel fiber. The soaking life of concrete is 7 days, 14 days, and 28 days. The results of this study show that the more variations in the addition of bent wire fibers, the compressive strength value of concrete and the tensile strength value of concrete will also increase. It can be seen that fiber concrete with an immersion life of 28 days with a variation of 9% added bent wire fiber has a maximum compressive strength value of concrete which is 63,645 MPa and a maximum value of tensile strength of 3,294 MP.
Effect of Addition of Dramix 3D Steel Fiber on Compressive Strength and Tensile Strength in Hpc (High-Performance Concrete) Concrete Simangunsong, Agustinus; Tarigan, Johannes; Nursyamsi, Nursyamsi; Bakara, Ricky
Jurnal Indonesia Sosial Teknologi Vol. 5 No. 11 (2024): Jurnal Indonesia Sosial Teknologi
Publisher : Publikasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59141/jist.v5i11.8761

Abstract

Concrete material is one of the most widely used construction materials in Indonesia due to its high compressive strength and adaptability to various construction needs. Despite its benefits, concrete has limitations, notably its weakness in tension and tendency to crack under tensile stress. This research focuses on High-Performance Concrete (HPC) with compressive strength exceeding 80 MPa, reinforced with 3D Dramix steel fibers to enhance both compressive and tensile strength. The study aimed to evaluate the compressive strength and splitting tensile strength of HPC mixed with varying percentages (0%, 3%, 6%, and 9%) of Dramix 3D steel fibers. Additionally, the methodology involved microstructure analysis using Scanning Electron Microscopy (SEM) and mechanical testing on HPC samples cured at 7, 14, and 28 days. Results indicate that the compressive strength reached a maximum of 94.776 MPa, and tensile strength reached 6.599 MPa with a 9% fiber addition at 28 days, highlighting the material's potential application in high-performance structural elements. The findings suggest that 3D Dramix steel fibers significantly enhance the mechanical properties of HPC, making it a viable option for durable construction.
Transportation Control Model Of Medan Center Market Herawati Simanjuntak, Sariguna; Tarigan, Johannes; Siagian, Morida
Jurnal Indonesia Sosial Sains Vol. 3 No. 12 (2022): Jurnal Indonesia Sosial Sains
Publisher : CV. Publikasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59141/jiss.v3i12.871

Abstract

Millions of Indonesians still supply their daily needs to a traditional market that is synonymous with the lower middle class. The study aimed at the problem of transportation at the center of the terrain city market and how to find solutions to the transport problem. The terrain city market center as a first-class market in the terrain city is one of the largest in the terrain city. One of the problems at the center of the terrain city market is that of transportation, which involves the daily congestion we encounter at a very critical stage. The central market for the city of Medan does seem to be physically, financially and under. In the study, problems are set in place (1) what is the current condition of the urban market and (2) what is the solution to the transportation problems that exist in the municipal market center? Using transportation control model approaches in the center of the city market that will be directly observed and analyzed using Vissim software. Researchers in this regard took a direct look at the problem at the city market center. Studies indicate that economic activity in the central urban market area has significant transportation problems, especially congestion. With the transport conditions and until the moment.
Impact Analysis of Infrastructure Changes from Signalized Intersection to Underpass on Vehicle Exhaust Emissions Tarigan, Rallya Napinia; Anas, M. Ridwan; Mulia, Ahmad Perwira; Hasibuan, Gina Cynthia Raphita; Tarigan, Johannes
Journal La Lifesci Vol. 6 No. 6 (2025): Journal La Lifesci
Publisher : Newinera Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37899/journallalifesci.v6i6.2829

Abstract

The Medan City Government plans to make infrastructure changes by building underpass at the existing signalized intersection between Road Ir. H. Juanda and Road Brigjend. Katamso to reduce traffic congestion. In recent years, vehicle emissions have become a global concern due to their significant impact on public health and environmental quality. As road traffic and vehicle numbers continue to grow, transportation has become a key contributor to air pollution from vehicle exhaust emissions. Consequently, it is essential to assess whether the infrastructure changes from signalized intersection to underpass have an impact on vehicle exhaust emissions. The impact analysis of infrastructure changes on vehicle exhaust emissions is evaluated through traffic simulation using PTV Vissim software with two scenarios, namely the do nothing scenario (existing signalized intersection) and the do something scenario (underpass) ), focusing on CO, NOx, and VOC emissions. The comparative results indicate substantial changes: CO emissions declined by 42.5% (from 40,991 grams to 23,567 grams), VOC by 37.1% (from 9,500 grams to 5,975 grams), while NOx emissions increased by 23.3% (from 7,075 grams to 8,725 grams). These findings suggest that the infrastructure changes from signalized intersection to underpass can positively influence air quality by reducing specific pollutants. However, further studies are necessary to examine its broader impact on other types of vehicle exhaust emissions using diverse emission categories, multiple calculation approaches, and various analytical methods for comprehensive comparison.
Kajian Studi Eksperimental Kompratif Beton HSC (High Strengt Concrate) Dengan Penambahan Serat Baja dan Abu Cangkang Sawit (ACS) dan Beton Normal Sutiyo, Heri; Nursyamsi, Nursyamsi; Tarigan, Johannes; Bakara, Ricky; Nasution, Soraya Muthma Innah
Jurnal Pendidikan Indonesia Vol. 6 No. 12 (2025): Jurnal Pendidikan Indonesia
Publisher : Publikasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59141/japendi.v6i12.9039

Abstract

Penelitian ini bertujuan untuk menganalisis pengaruh penggunaan abu cangkang sawit (ACS) sebagai bahan pengganti 15% semen dan penambahan serat baja 2% terhadap sifat mekanis beton mutu tinggi (High Strength Concrete/HSC). Pengujian meliputi uji beton segar (slump flow, T50 time, V-funnel, L-box) dan beton keras (kuat tekan, kuat tarik belah, kuat lentur). Hasil menunjukkan seluruh parameter beton segar memenuhi standar EFNARC untuk Self-Compacting Concrete (SCC). Kuat tekan meningkat signifikan dari 30,89 MPa (beton normal) menjadi 90,25 MPa (HSC)—peningkatan 192% atau 65,7% lebih tinggi dari target mutu. Kuat tarik belah meningkat dari 2,95 MPa menjadi 5,63 MPa (90,8%), sedangkan kuat lentur meningkat dari 6,27 MPa menjadi 16,69 MPa (166%) pada balok komposit dengan lapisan HSC 5 cm. Peningkatan ini disebabkan oleh reaksi pozzolanik abu cangkang sawit yang menghasilkan kalsium silikat hidrat (C-S-H) tambahan dan kontribusi serat baja dalam menahan propagasi retak serta meningkatkan daktilitas. Analisis displacement menunjukkan peningkatan ketebalan lapisan HSC meningkatkan kekakuan lentur dan menurunkan lendutan maksimum. Kombinasi ACS 15% dan serat baja 2% terbukti efektif meningkatkan performa mekanis dan struktural beton hingga tiga kali lipat dibanding beton normal, sekaligus mendukung material ramah lingkungan dalam teknologi beton modern dengan memanfaatkan limbah industri kelapa sawit.
Studi Eksperimental Sinergi Beton HSC dan Beton Normal Dengan Penambahan Pozzolan Abu Sekam Padi dan Serat Bambu Terhadap Perkuatan Lentur Balok Astomo, Priaji Yudha; Nursyamsi, Nursyamsi; Tarigan, Johannes; Bakara, Ricky; Fischer, Indra Jhon
Jurnal Pendidikan Indonesia Vol. 6 No. 12 (2025): Jurnal Pendidikan Indonesia
Publisher : Publikasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59141/japendi.v6i12.9063

Abstract

Penelitian ini menganalisis sinergi beton berkekuatan tinggi (High Strength Concrete/HSC) dan beton normal dengan penambahan abu sekam padi (ASP) sebagai pozzolan dan serat bambu sebagai penguat terhadap peningkatan kuat lentur balok komposit. Abu sekam padi dengan kandungan silika tinggi (90–95%) menggantikan sebagian semen untuk meningkatkan kekuatan dan durabilitas, sedangkan serat bambu meningkatkan ketangguhan dan ketahanan retak. Metode eksperimental dilakukan di Laboratorium Rekayasa dan Bahan Beton, Fakultas Teknik Universitas Sumatera Utara dengan variasi lapisan HSC setebal 1 cm, 3 cm, dan 5 cm pada bagian atas balok beton normal. Pengujian dilakukan terhadap beton segar (slump flow, T50, V-funnel, L-box) dan beton keras pada umur 28 hari (kuat tekan, kuat tarik, kuat lentur). Hasil menunjukkan penambahan 10% abu sekam padi dan 1% serat bambu meningkatkan kuat tekan dan lentur secara signifikan. Kuat lentur tertinggi diperoleh pada balok dengan lapisan HSC 3 cm, menunjukkan peningkatan kapasitas beban dan penurunan lendutan. Analisis metode momen-area dan SAP 2000 memperkuat hasil laboratorium dengan selisih lendutan dalam batas toleransi. Kombinasi HSC, abu sekam padi, dan serat bambu memberikan efek sinergis terhadap peningkatan performa mekanis beton dan mendukung pengembangan material konstruksi berkelanjutan.
Perkuatan Lentur Balok Komposit Beton Normal dan HSC dengan Serat Polypropilene dan Fly Ash Situmorang, Ruben; Nursyamsi, Nursyamsi; Tarigan, Johannes; Bakara, Ricky; Indriani, Juni
Jurnal Pendidikan Indonesia Vol. 6 No. 12 (2025): Jurnal Pendidikan Indonesia
Publisher : Publikasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59141/japendi.v6i12.9067

Abstract

Penelitian ini mengkaji perkuatan lentur balok komposit dengan membandingkan beton normal (BN) dan High Strength Concrete (HSC) yang diperkuat dengan serat polypropilene dan fly ash. Tujuan penelitian adalah menganalisis pengaruh penambahan fly ash dan serat polypropilene terhadap kuat tekan, kuat tarik, dan kuat lentur beton, serta membandingkan perilaku balok komposit BN dan HSC. Metode penelitian menggunakan eksperimen dengan enam variasi campuran: BN1, BN2, BN3, HSC1, HSC2, dan HSC3, dengan variasi fly ash 0%, 5%, 10% dan serat polypropilene 0%, 0.5%, 1%. Hasil penelitian menunjukkan kuat tekan optimum dicapai pada HSC2 (87.63 MPa) dengan peningkatan 166.68% dari beton normal, kuat tarik optimum pada HSC2 (4.99 MPa) dengan peningkatan 62.54%, dan kuat lentur optimum pada balok komposit HSC 2 cm (4.02 MPa) dengan peningkatan 44.6%. Penelitian ini menyimpulkan bahwa substitusi semen dengan 10% fly ash dan 1% serat polypropilene menghasilkan performa terbaik dalam meningkatkan sifat mekanis beton. Implikasinya, kombinasi ini dapat direkomendasikan untuk aplikasi struktural yang memprioritaskan kekuatan dan ekonomi biaya.
Traffic Impact Analysis of an Underpass on the Performance of Nearby Signalized Intersections Using VISSIM Purba, Yosua; Anas, M. Ridwan; Mulia, Ahmad Perwira; Hasibuan, Gina Cynthia Raphita; Tarigan, Johannes
Journal La Multiapp Vol. 7 No. 1 (2026): Journal La Multiapp
Publisher : Newinera Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37899/journallamultiapp.v7i1.2830

Abstract

Medan City is one of the metropolitan cities with a high level of congestion and population density, resulting in traffic jams, delays, as well as air and noise pollution. This study aims to analyze the performance of intersections on S.M Raja – Halat road, Brigjend Katamso – Mesjid Raya road, and Brigjend Katamso - Pelangi road before and after the operation of the underpass at the Ir.H.Juanda – Brigjend Katamso road intersection using vissim software. Data were obtained from traffic surveys such as vehicle volume surveys, road geometry, traffic signal cycle times, and vehicle speeds. The data obtained from the vissim software simulation results include queue lengths, delays, and level of service at the intersection. For the simulation results at the Ir.H.Juanda – Brigjend Katamso road intersection before the operation of the underpass, the average queue length was 274.3 m and the average delay was 307.38 sec/vehicle, with an average level of service of F (very poor). After the operation of the underpass, the average queue length was 8.38 m and the average delay was 0.96 sec/vehicle, with an average level of service of A (excellent). With a 5-year scenario, the average queue length was 38.53 m and the average delay was 12.34 sec/vehicle, with an average level of service of B (good). Thus, a significant difference is clearly visible between before and after the operation of the underpass, such as the results of queue lengths, delays, and service levels, which have caused new conflicts at the intersections closest to the underpass.