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All Journal Rekayasa Sipil Jurnal Proyek Teknik Sipil Jurnal Rekayasa Sipil J-Sil (Jurnal Teknik Sipil dan Lingkungan)
Suwarto, Fardzanela
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Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Engineering Environmental Science Transportation

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STUDI PERBANDINGAN ALTERNATIF PENINGGIAN ELEVASI JALAN DENGAN PENGGUNAAN BANGUNAN PROTEKSI PIPA TERHADAP BIAYA, MUTU DAN WAKTU fauziyah, shifa; Nurjihad C, Fajar; Suwarto, Fardzanela
Jurnal Proyek Teknik Sipil Vol 2, No 2 (2019): September
Publisher : Civil Infrastructure Engineering and Architectural Design

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2450.429 KB) | DOI: 10.14710/potensi.2019.6400

Abstract

One of the work items in the Soekarno-Hatta Airport Accessibility and Ducting Utility Project is widening the M1-M2 road. Pit test results in that area indicate that there is a 40 cm (16 ") diameter Pertamina pipeline at a depth of 0.7 m. The pipe is used to flow aircraft fuel so it is not possible to be relocated, this condition is called road crossing pipeline. Alternative solutions to overcome these problems are road elevation and the making of pipe protection from concrete. Road elevation costs as much as Rp 13,626,916,287.02 compared to alternative construction of pipeline protection amounting to Rp 23,200,588,370. The time for completing the elevation of the road is faster, which is around 47 weeks, while the implementation of the road and making pipeline protection takes 61 weeks. In terms of quality, in soil compaction during the road elevation process uses a vibroroller so that compaction is evenly distributed. Based on the comparative results in terms of cost, time and quality, the alternative solution to the problem road crossing pipeline is road elevation.
PENGARUH PENAMBAHAN DAN PERLAKUAN PENYIAPAN RECLAIMED ASPHALT PAVEMENT (RAP) TERHADAP KARAKTERISTIK Suwarto, Fardzanela; Setiadji, Bagus Hario; Supriyono, Supriyono
Jurnal Proyek Teknik Sipil Vol 1, No 1 (2018): September
Publisher : Civil Infrastructure Engineering and Architectural Design

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (966.426 KB) | DOI: 10.14710/potensi.2018.3489

Abstract

Abstract: The addition of the Reclaimed Asphalt Pavement (RAP) is done by stripping the asphalt mixture on the pavement structure and destroying it into a grained material. The percentage of RAP material addition and treatment of RAP material prior to use as a Job Mix Formula will affect the final result of the asphalt mixture so that the relationship between the asphalt mixture characteristics with the RAP material and the relationship between the asphalt mixture characteristics between the two treatments against RAP with or without the granulator need to be studied. The results of this study show that the addition of RAP material can improve the stability of the asphalt mixture, the optimal value of RAP material addition is between 20% and 30%. In addition, the use of RAP by granulisation process in aggregate mixtures can help to improve stability and mixed stiffness.Keyword: RAP, Asphalt mixture, granulator
AUDIT KESELAMATAN JALAN SEBAGAI DASAR IMPLEMENTASI PERENCANAAN KARAKTERISTIK JALAN Suwarto, Fardzanela; Nugroho, Anjang
Jurnal Proyek Teknik Sipil Vol 2, No 1 (2019): March
Publisher : Civil Infrastructure Engineering and Architectural Design

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (976.079 KB) | DOI: 10.14710/potensi.2019.4687

Abstract

Peningkatan manajemen keselamatan infrastruktur jalan merupakan komponen kunci untuk peningkatan keselamatan jalan. Untuk meningkatkan keselamatan jalan, selama tahap operasi dan pemeliharaan, otoritas jalan harus menemukan dan memperbaiki masalah keselamatan yang menjadi penyebab kecelakaan jalan, untuk mencegah kembali terjadinya kecelakaan lalu lintas. Sehingga audit keselamatan jalan sangat dibutuhkan, sebagai suatu sistem yang melakukan kontrol kualitas (keselamatan) jalan. Penelitian ini bertujuan untuk melakukan kajian terhadap audit keselamatan jalan yang telah dilakukan pada berbagai lokasi dan melakukan penyimpulan terhadap rekomendasi audit keselamatan jalan dalam hal geometrik dan karakteristik jalan untuk dapat memberikan masukan pada tahapan perencanaan jalan baru di kemudian hari. Hasil dari studi ini adalah pada segmen jalan lurus perencanaan rambu peringatan dan batas kecepatan sangat diperlukan untuk menambah informasi kepada pengemudi. Terkait bagian tikungan dan tanjakan jalan, konsistensi dalam perencanaan radius tikungan mutlak diperlukan.  Selain itu khusus untuk daerah tanjakan, pada tikungan perlu dilengkapi marka garis lurus dan rambu batas kecepatan serta rambu dilarang menyiap untuk mengurangi kemungkinan terjadinya kecelakaan lalu lintas.
Optimization of Strong Compressive Strength of Environmentally Friendly Paving Blocks through Substitution of Cow Bone Powder and PET Plastic Waste as Additives Chayrunnisa, Adelia; Setyaningrum, Aprilia Nur Dwi; Suwarto, Fardzanela; Putri, Dita Mentari
Rekayasa Sipil Vol. 19 No. 3 (2025): Rekayasa Sipil Vol. 19 No. 3
Publisher : Department of Civil Engineering, Faculty of Engineering, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rekayasasipil.2025.019.03.4

Abstract

Cracks caused by excessive loads that exceed compressive strength remain a major issue when applying paving blocks. This study aims to develop environmentally friendly paving blocks by utilizing PET plastic waste and cattle bone powder as substitute materials, and to evaluate their effect on the compressive strength characteristics of paving blocks. Cattle bone powder was used as a partial cement substitute in proportions of 0%, 15%, 20%, and 25%, while PET plastic waste was used as a partial sand substitute at 0%, 5%, 10%, and 15%, intended to fill micro-voids in the concrete mixture. The paving block samples were rectangular, measuring 20 × 10.5 × 6 cm. Based on compressive strength test results at 7 days, converted to 28 days, the highest strength value was achieved with the mixture containing 15% cattle bone powder and 5% PET, reaching 29.22 MPa—meeting the SNI 03-0691-1996 quality standard for Class B. The lowest compressive strength was recorded in the mixture with 20% cattle bone powder and 15% PET plastic, at 6.89 MPa. The lowest water absorption value was found in the mix with 0% cattle bone powder and 5% PET, at 2.79%, while the highest water absorption occurred in the mixture with 25% cattle bone powder and 15% PET, at 8.06%.
Enhancing Red Brick Quality Using Corn Cob Ash and Blood Clam Shell Powder Adisti, Najeelina Putri; Yaqub, Muhammad Ardhiansyah Sofyan; Fauziyah, Shifa; Suwarto, Fardzanela
Rekayasa Sipil Vol. 19 No. 3 (2025): Rekayasa Sipil Vol. 19 No. 3
Publisher : Department of Civil Engineering, Faculty of Engineering, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rekayasasipil.2025.019.03.6

Abstract

Problems related to the quality of red bricks are still frequently encountered, particularly cracks or damage that occur during the firing process. To minimize these problems, efforts are needed to improve the quality of bricks through material innovation. This study aims to analyze the optimal mixture composition by substituting corn cob ash and adding blood clam shell powder to produce red bricks. Corn cob ash is used as a substitute material to reduce water absorption, with variations of 3%, 4%, and 5%, while blood clam shell powder is added at 5% to enhance compressive strength. The research method used was experimental, where the sample production process was conducted directly at the production site. A total of 21 test specimens were prepared with dimensions of 220 mm × 95 mm × 45 mm. Testing was conducted in accordance with the SNI 15-2094-2000 standard, including testing of physical properties, size, water absorption, density, and compressive strength. The research results showed that the most optimal mixture was found in variation 7, consisting of 95% clay, 5% corn cob ash, and 5% blood clam shell powder. This composition produced bricks with water absorption of 18.06%, density of 1.3 g/cm³, and average compressive strength of 42.98 kg/cm². However, this innovation requires higher production costs compared to conventional red bricks.
The Basic Rheological Properties of LDPE Modified Bitumen Sudibyo, Tri; Suwarto, Fardzanela; Fauzan, Muhammad; Arif, Chusnul
Jurnal Teknik Sipil dan Lingkungan Vol. 9 No. 2: Oktober 2024
Publisher : Departemen Teknik Sipil dan Lingkungan IPB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jsil.9.2.275-282

Abstract

Various polymers have widely known in its capability in enhancing rheological properties of bitumen for various pavement applications. Many polymer types have been used in studies, where the properties of the final product of the polymer modified bitumen (PMB) are different, depending on the used polymers. LDPE or Low-Density Polyethylene are one of widely studied polymers in bitumen modification that exhibit higher bitumen's viscosity, perform better in resisting deformation under heavy loads, and tend to show better integrity in high temperatures. LDPE-modified bitumen also believed to enhance elasticity, allowing a potentially better resistance to cracking due to ability to recover at low strain. Many studies also stated the improvement of LDPE-modified bitumen against thermal and mechanical stress, better adhesion to aggregates in asphalt mixtures, and various promising result for overall durability and longevity of pavement. This study explains basic rheological properties of LDPE-modified bitumen prepared by high shear mixing and specified preparing methodologies. Five variables of %modifications were used: 2%, 4%, 6%, 8% and 10% of bitumen weight. Ring and Ball softening point, Penetration test and rotating spindle viscometry were done to understand the rheological changes of the modified bitumen compared to unmodified bitumen control. For further understanding the behaviour, two types of LDPE were used: virgin LDPE and recycled LDPE. The study shows interesting noticeable differences between the two used LDPE polymers, allowing further proposed studies in this field.
Analisis Siklus Hidup pada Campuran Aspal dengan Reclaimed Asphalt Pavement Dengan Metode Life Cycle Asessment Suwarto, Fardzanela; Sudibyo, Tri
Jurnal Teknik Sipil dan Lingkungan Vol. 9 No. 2: Oktober 2024
Publisher : Departemen Teknik Sipil dan Lingkungan IPB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jsil.9.2.315-326

Abstract

Penelitian ini mengevaluasi dampak lingkungan dari penggunaan Reclaimed Asphalt Pavement (RAP) dalam campuran aspal dengan metode Life Cycle Assessment (LCA). Variasi RAP mulai dari 0% hingga 50% dianalisis terhadap 18 kategori dampak, termasuk Global Warming, Water Consumption, dan Resource Scarcity. Hasil menunjukkan bahwa RAP mengurangi Mineral Resource Scarcity hingga 37,1%, Land Use 35,2%, dan Water Consumption sebesar 26,2%, dengan kontribusi terbesar berasal dari pengurangan penggunaan material baru. Namun, RAP meningkatkan dampak pada Terrestrial Ecotoxicity akibat konsumsi energi yang lebih tinggi pada fase pencampuran. Penelitian ini mendukung penggunaan RAP untuk meningkatkan keberlanjutan infrastruktur jalan dengan optimasi proses pencampuran untuk meminimalkan dampak negatif.
Pengaruh Rasa Takut Terhadap Profil Perilaku Pengendara Usia Remaja - Studi Dengan Driver Behaviour Questionnaire (DBQ) Suwarto, Fardzanela; Hartono, Hartono; Lukman, Lukman
Jurnal Rekayasa Sipil (JRS-Unand) Vol. 15 No. 2 (2019)
Publisher : Civil Engineering Departement, Andalas University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jrs.15.2.129-139.2019

Abstract

Di Kota Semarang jumlah kecelakaan lalu lintas cenderung mengalami kenaikan setiap tahunnya. Dari seluruh kecelakaan yang terjadi di jalan raya, faktor perilaku pengemudi (human error) memiliki kontribusi paling tinggi yaitu mencapai antara 80-90 persen. Kecelakaan jalan menjadi penyebab utama kematian di kalangan remaja antara usia 14 dan 24 tahun. Hal ini disebabkan oleh beberapa faktor salah satunya persepsi pengendara. Tujuan studi ini adalah untuk melihat kecenderungan perilaku dan pengaruh faktor persepsi rasa takut dalam mempengaruhi perilaku pengemudi usia remaja di Kota Semarang, agar didapatkan pemahaman yang lebih dalam tentang perilaku pengemudi remaja dalam upaya mengurangi jumlah kecelakaan lalu lintas. Responden pengendara kendaraan usia remaja akan diminta untuk melengkapi Driver Behaviour Questionnaire (DBQ) yang meminta mereka untuk menilai frekuensi dimana mereka melakukan berbagai jenis kesalahan dan pelanggaran saat berkendara serta kuesioner persepsi rasa takut dalam berkendara. Dari Penelitian ini dapat disimpulkan bahwa persepsi terhadap rasa takut tidak memiliki hubungan yang cukup kuat terhadap keterampilan mengemudi pengendara usia remaja terlihat dari nilai korelasi Rsquare kedua variabel tersebut yaitu sebesar 1.1%. Selain itu persepsi rasa takut yang juga tidak dapat serta merta mengurangi tingkat kesalahan (lapses dan error) yang dapat dibuat tiap individu saat sedang berkendara, tetapi perasaan takut ini dapat mengurangi intensi atau keinginan pengendara remaja untuk melakukan tindakan pelanggaran ringan maupun berat (ordinary dan aggressive violations).
Co-Authors Adisti, Najeelina Putri Anjang Nugroho, Anjang Bagus Hario Setiadji Chayrunnisa, Adelia Chusnul Arif Hartono Hartono LUKMAN, LUKMAN Muhammad fauzan Nurjihad C, Fajar Putri, Dita Mentari Setyaningrum, Aprilia Nur Dwi Shifa Fauziyah Supriyono Supriyono Tri Sudibyo Yaqub, Muhammad Ardhiansyah Sofyan