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Analisis Perbandingan Antara Kondisi Temperatur Perkerasan Aspal Maksimum Aktual Dengan Manual Desain Perkerasan Jalan di Provinsi Riau Khairil Badry; Sentosa, Leo; Wibisono, Gunawan
SAINSTEK Vol. 12 No. 2 (2024)
Publisher : Sekolah Tinggi Teknologi Pekanbaru

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35583/js.v12i2.269

Abstract

Temperatur udara menjadi salah satu faktor paling penting yang mempengaruhi sifat mekanis campuran aspal, sehingga semakin tinggi suhu udara disuatu tempat maka semakin tinggi suhu perkerasan aspal yang berada di daerah tersebut. Peningkatan suhu dan waktu pembebanan yang lama dapat mempengaruhi tingkat deformasi pada struktur lapisan perkerasan aspal serta karakteristik distribusi bebannya. Ketika suhu meningkat dan waktu pembebanan menjadi lebih lama, nilai modulus kekakuan campuran beraspal mengalami penurunan yang signifikan. Hal ini menyebabkan perkerasan aspal mengalami deformasi berlebih, yang dapat mengakibatkan terbentuknya alur pada perkerasan aspal. Tabel nilai faktor koreksi modulus campuran beraspal hanya sebatas suhu perkerasan aspal sebesar 38OC sampai 42OC, sedangkan di wilayah Provinsi Riau cenderung memiliki suhu udara yang tinggi sehingga diperlukan pemeriksaan suhu perkerasan aspal yang terjadi di Provinsi Riau. Hasil penelitian ini menunjukkan bahwa suhu temperatur perkerasan aspal yang berada di Provinsi Riau melebihi dari suhu yang telah ditetapkan, dimana di Provinsi Riau didapatkan suhu maksimum perkerasan aspalnya sebesar 54.90OC dan suhu perkerasan aspal rata-ratanya sebesar 47.27OC, sehingga dilakukan penghitungan untuk menentukan nilai faktor koresi modulus campuran beraspal yang hasilnya untuk suhu maksimum sebesar 0.329 dan suhu rata-rata sebesar 0.606.
Properties of concrete containing crumb rubber and rice husk ash mixing with peat water Abdurrahman, Habib; Alfikri, Nur; Rijaldo, Arief; Qoryati, Mia; Marpaung, Horas Saut Maringan; Wibisono, Gunawan; Olivia, Monita
Journal of Applied Materials and Technology Vol. 6 No. 2 (2025): March 2025
Publisher : Faculty of Engineering Universitas Riau and Applied Materials and Technology Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/Jamt.6.2.79-89

Abstract

This study compares the effects of peat water and normal water as mixing and curing water on the properties of crumb rubber and rice husk ash concrete (CR-RHA). The number of crumb rubber and rice husk ash used on the concrete followed the optimum mixture from a previous study, which was 5% and 10%, respectively. The crumb rubber was treated to overcome the lack of adhesion by soaking it in water for 24 hours. Normal concrete (PCC) was also cast as a control. CR-RHA and PCC concrete were mixed and cured using normal and peat water. Compressive strength, tensile strength, and porosity were tested at 3, 7, 14, 28, and 56 days. In general, CR-RHA concrete and PCC concrete showed lower performance when mixed and cured with peat water compared to normal water. Peat water with high acidity decreased the calcium content and developed the amount of pores in concrete, resulting in strength reduction. However, due to the excess pozzolan from rice husk ash, CR-RHA concrete had better resistance as the strength loss was relatively smaller, respectively 11.4% at 28 days and 10.6% at 56 days. Furthermore, CR-RHA concrete showed lower porosity, higher compressive strength, and tensile strength than PCC concrete due to rice husk ash that improved concrete density by generating CSH and crumb rubber that prevented concrete from spalling in an acidic environment. It was also found that compared to the previous study, pre-treated crumb rubber exhibited better mechanical and durability of concrete.
Evaluation of Particle Grain Size of Sand Embankment for Liquefaction Above Peat Against Vibration Agus Nugroho, Soewignjo; Yusa, Muhamad; Putra, Agus Ika; Satibi, Syawal; Fatnanta, Ferry; Wibisono, Gunawan; Rinaldi, Rinaldi; Hasibuan, Putra S
Journal of Infrastructure and Construction Technology Vol. 3 No. 1 (2025): January 2025
Publisher : Dept. of Civil Engineering Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56208/jictech.3.1.1-8

Abstract

Liquefaction is the transformation of soil into a liquid. The vibrating table in this study moves in a horizontal direction and the opposite manner in a vertical direction utilizing modelling. Acceleration variations of 0.25 g and 0.32 g were employed. The dirt was 10 centimetres thick. The sand clusters were 15 cm thick, with differences in debris gradient size and water surface on the sample. The uniform load that was employed was 40 kg/m2. Examine the drop of the ground surface and the rising of the porous water for signs of liquefaction. A 0.5mm diameter glass pipe was used to measure the porous water pressure. The test findings revealed that with higher acceleration, effective vertical voltage, and porous water ratio values, the rate of particle graduation has a major influence on the occurrence of liquefaction potential. The test results revealed that poorly graduated fine sand experienced maximum effective vertical stress and elevated porous water ratio values (Ru), whereas well-graded sand tended to be more stable.
BIO-PORTA TANK (BACTERIAL PORTABLE SEPTICTANK) SEBAGAI SOLUSI SANITASI PERUMAHANDENGANMUKA AIR TANAH TINGGI [BIO-PORTA TANK (BACTERIAL PORTABLE SEPTICTANK) AS A SANITATION SOLUTION OF HOUSING WITH HIGH GROUNDWATER LEVEL] Dhea Fitra Yofani; Shakila Fuadah Lubis; Milka Novita Manalu; Ramadhan Yanuari; Rezha Yaren; Gunawan Wibisono; Monita Olivia
Jurnal Sinergitas PKM & CSR Vol. 4 No. 3 (2020): June
Publisher : Universitas Pelita Harapan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19166/jspc.v4i3.2425

Abstract

Kubang Jaya village is located in a low land peat swampy area and often suffers from the flood in the rainy season.  Swampy peat area generally has a high groundwater level; thus, it can immerse the septic tank in the housing in the area.  The height of the groundwater table is approximately 50cm from the surface level, while the depth of the septic tank is 150cm.  When the septic tank below groundwater level, this could cause a mix of soil water and septic tank waste.  This community development activity aims to educate the community about sanitation and give lecture and training of installing bio-porta septic tank (bacterial portable septic tank) for housing in high groundwater level area. Bio-porta septic tank consists of two drums as sediment tank and aeration tank. Bio balls were used to speed up the decomposition by aerobic bacteria in the tank.  An aerator was added to the installation to increase the proliferation of bacteria. The community development activities were pre-test, lecture, post-test, practical and cadre training.  Results show that there was an increase of understanding and knowledge of community from 24% to 62% about the septic tank in high groundwater level area.  The community also agreed to replace the conventional septic tank into the bio-porta septic tank in the future.  The activity also has a positive impact on educating and changing the mindset and attitude the community of Kubang Jaya village in improving the sanitation with an intention to the bio-porta septic tank in the future.BAHASA INDONESIA ABSTRACT: Desa Kubang Jaya merupakan kawasan dataran rendah rawa gambut dan sering mengalami banjir saat musim hujan. Lahan rawa gambut umumnya memiliki muka air tanah tinggi sehingga dapat merendam tangki septik pada perumahan yang terdapat di kawasan tesebut. Rata-rata tinggi muka air tanah sekitar ±50 cm, sedangkan kedalaman tangki septik warga sekitar ±150 cm dari permukaan tanah. Apabila tangki septik terendam, maka hal ini dapat mengakibatkan pencampuran air tanah dengan limbah tangki septik. Oleh karena itu dilakukan kegiatan pengabdian masyarakat dengan memberikan pengetahuan mengenai sanitasi lingkungan dan memberikan penyuluhan serta pelatihan pembuatan tangki septik bio-porta (bacterial portable septic tank) untuk rumah di lingkungan dengan muka air tanah tinggi. Tangki septik bio-porta terdiri dari dua drum yang berfungsi sebagai tangki pengendapan dan tangki aerasi. Untuk mempercepat proses penguraian oleh bakteri aerob di dalam tangki maka digunakan bio ball atau rumah bakteri. Aerator ditambahkan pada instalasi untuk mempercepat perkembangbiakan bakteri aerob. Kegiatan pengabdian terdiri dari pre-test, penyuluhan, post-test, praktek, dan pelatihan kader. Hasil evaluasi kegiatan pengabdian menunjukkan terjadinya peningkatan pengetahuan masyarakat dari 24% menjadi 62% tentang tangki septik di lahan dengan muka air tanah tinggi.  Masyarakat juga sangat setuju untuk mengganti tangki septik konvensional dengan tangki septik bio-porta di masa mendatang. Hasil kegiatan sangat berdampak positif untuk mengedukasi dan mengubah pola pikir serta sikap warga desa Kubang Jaya dalam memperbaiki sanitasi lingkungan tempat tinggal dengan keinginan untuk menggunakan tangki septik bio-porta di masa mendatang.
EDUKASI PELESTARIAN LAHAN GAMBUT UNTUK ANAK USIA SEKOLAH DASAR MENGGUNAKAN MEDIA BUKU KREATIF [EDUCATION PEATLAND CONSERVATION FOR ELEMENTARY SCHOOL USING CREATIVE BOOK MEDIA] Habib Abdurrahman; Abrar Rifqi Pratama; Ardian Yolanda; Arif Rahman; Zakiyul Fuadi; Gunawan Wibisono; Monita Olivia
Jurnal Sinergitas PKM & CSR Vol. 6 No. 1 (2021): October
Publisher : Universitas Pelita Harapan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19166/jspc.v6i1.5095

Abstract

Peatlands have an important role in ecosystems as a carbon storage and helps to reduce greenhouse gas emissions.Inappropriate peatland conversion causes common problems such as forest fires which create severe air pollution and trigger the production of greenhouse gases due to the release of stored carbon. As a result, early education regarding peat soil conservation is necessary to ensure that people understand the importance of peat soil and the harm that happens when peatlands are converted inappropriately. This program aims to educate students about peatlands and raise awareness about the importance of protecting and conserving peat from an early age. Educational materials are delivered using creative books containing illustrated stories, important knowledge about peat, and interactive games to attract student’s interest in reading and make information easier to recall. The results of the final evaluation through a questionnaire revealed that using creative books to educate students about peatlands was successful in improving students' understanding of peatlands. This is proven by the increasing number of students who fully understand the peat information that has been taught from 3 students to 32 out of 33 students.BAHASA INDONESIA ABSTRAK: Salah satu peran penting lahan gambut bagi ekosistem adalah sebagai pengikat karbon sehingga bermanfaat dalam mengurangi gas rumah kaca. Pengalihfungsian lahan gambut dengan cara yang tidak benar menyebabkan timbulnya masalah yang umum terjadi seperti kebakaran lahan gambut yang menyebabkan pencemaran udara melalui polusi kabut asap dan memicu terbentuknya gas rumah kaca akibat pelepasan karbon yang disimpannya. Untuk itu, pemberian edukasi mengenai pelestarian tanah gambut perlu diterapkan sejak dini agar masyarakat mengetahui peranan penting tanah gambut dan kerusakan yang terjadi apabila lahan gambut dialihfungsikan. Pengabdian ini bertujuan untuk memberikan edukasi pengenalan lahan gambut sekaligus meningkatkan kepedulian untuk menjaga dan melestarikan gambut sejak dini. Materi edukasi disampaikan menggunakan buku kreatif yang berisi cerita bergambar, pengetahuan penting tentang gambut, dan games interaktif agar menarik minat membaca dan membuat informasi menjadi lebih mudah diingat oleh siswa. Hasil evaluasi akhir melalui kuisoner menunjukkan bahwa pemberian edukasi tentang tanah gambut menggunakan media buku kreatif berhasil meningkatkan pemahaman siswa mengenai lahan gambut yang dibuktikan dengan bertambahnya jumlah siswa yang telah paham sepenuhnya mengenai materi gambut yang telah diajarkan dari semula 3 siswa menjadi 32 dari 33 siswa.
Urgensi Model Prediksi FWD berbasis Data PCI dan IRI Tika Oktaria; Leo Sentosa; Gunawan Wibisono
Prosiding Seminar Nasional Teknik Sipil UMS 2026: Prosiding Seminar Nasional Teknik Sipil UMS
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Penilaian kondisi perkerasan jalan yang menitikberatkan pada aspek fungsional dan aspek struktural. Pengujian Falling Weight Deflectometer (FWD) memberikan data kapasitas struktural yang akurat untuk manajemen aset jalan, namun memerlukan biaya operasional yang tinggi. Hal ini menyebabkan pengumpulan data struktural sering kali kalah cepat dibandingkan survei fungsional seperti Pavement Condition Index (PCI) dan International Roughness Index (IRI). Penelitian ini bertujuan untuk mengkaji secara sistematis urgensi pengembangan model integrasi yang mampu menduga nilai FWD berdasarkan data PCI dan IRI sebagai alat deteksi dini kerusakan jalan. Metode yang digunakan adalah Systematic Literature Review (SLR) dengan prosedur terbaik terhadap berbagai studi korelasi perkerasan pada penelitian terdahulu. Hasil sintesis menunjukkan bahwa meskipun korelasi antara PCI dan IRI terbukti kuat dengan nilai R2 mencapai 0,82, hubungan keduanya terhadap FWD cenderung bersifat moderat dan non-linear. Hal ini disebabkan oleh adanya fenomena time lag antara penurunan kondisi struktural di lapisan bawah dengan munculnya kerusakan yang terlihat di permukaan jalan. Kesimpulannya, terdapat celah penelitian (research gap) yang krusial untuk membangun model regresi multivariabel yang menggabungkan parameter fungsional secara simultan. Model ini diharapkan dapat mengoptimalkan efisiensi anggaran preservasi jalan melalui identifikasi awal kelemahan struktural tanpa harus bergantung sepenuhnya pada pengujian FWD yang ekstensif.
PEMODELAN KARAKTERISTIK PELAKU PERJALANAN TERHADAP PEMILIHAN MODA ANGKUTAN MELALUI TOL PEKANBARU – DUMAI M Rendy Alfiansyah; Leo Sentosa; Gunawan Wibisono
Racic : Rab Construction Research Vol. 10 No. 2 (2025): DESEMBER
Publisher : LPPM Universitas Abdurrab

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36341/racic.v10i2.5315

Abstract

There are differences in the characteristics of travelers on the selection of intercity transportation moda in general at Riau Province and by means of Pekanbaru - Dumai Toll Road. The purpose of this research is to create a model of moda selection characteristics and identify factors that influence the characteristics of travelers on mode choice by means of Pekanbaru - Dumai Toll Road using the Structural Equation Modeling (SEM) method. Data collection is done by distributing questionnaires to respondents. The results of the analysis obtained the highest influence factor on the decision of private transportation travelers affect to public transportation with the model equation PM = 0.276 FL + 0.297 NY + 0.169 BW + 0.154 AM + 0.340 OB is Obstacle, which is still considers using public transportation inefficient, then influenced by convenience, flexibility, time and cost considerations and security while the highest influence factor on the decision of public transport travelers to choose the AKDP Bus or AJDP Travel moda with PM = 0.244 FL + 0.340 B + 0.243 W + 0.228 NY + 0.213 AM model consider of cheaper costs, then flexibility, time considerations, comfort and safety. KeyWords: Mode choice, Structural Equation Modeling (SEM), Pekanbaru - Dumai Toll Road
ANALISIS NERACA AIR SUB DAS KAMPAR KANAN Reno Diah Putri; Manyuk Fauzi; Gunawan Wibisono
Racic : Rab Construction Research Vol. 10 No. 2 (2025): DESEMBER
Publisher : LPPM Universitas Abdurrab

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36341/racic.v10i2.5869

Abstract

Kampar Kanan Watershed is a supporter of community activities so that its sustainability needs to be considered and managed optimally. One effort that can be made in monitoring water availability is to analyze the water balance. This study aims to analyze the condition of the water balance in the Kampar Kanan Watershed based on all rainy season scenarios to prevent water shortage conditions in all rainy season scenarios. The method used to calculate water availability in this study is the regional method. Based on the results of the water balance analysis, the water availability of the Kampar Kanan Watershed is able to meet all water needs. However, there are several intake nodes that experience deficits, namely Node 11 Node 12 and Node 15
ANALISIS TINGKAT KEPUASAN PENGGUNA LAYANAN TRANSMETRO PEKANBARU DENGAN MENGGUNAKAN METODE SERVQUAL Roy Candra; Leo Sentosa; Gunawan Wibisono
Racic : Rab Construction Research Vol. 10 No. 2 (2025): DESEMBER
Publisher : LPPM Universitas Abdurrab

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36341/racic.v10i2.6064

Abstract

Transmetro Pekanbaru is one of the road-based mass transportation services operating in Pekanbaru City, Riau Province. First operating on June 18, 2009, with the number of vehicles operated as many as 20 units serving 2 corridors, namely corridor 01 with the Ramayana - Pandau route. PP and corridor 02 with the Bandar Raya Payung Sekaki Terminal (BRPS) - Kulim.PP route. Until now, Transmetro Pekanbaru serves 8 active corridors with the number of vehicles operating as many as 38 units. This study was conducted to determine the level of satisfaction of Transmetro Pekanbaru users, especially on Routes/Corridors 01 and 02. The analysis method used is the Service Quality method (SERVQUAL), which is a function index of the difference between user expectations and perceptions of a series of satisfaction level factors. The number of samples used was 165 respondents surveyed on both routes. The indicators used for measurement include: Punctuality, crew ability, security, vehicle condition, schedule and route information, fares, and infrastructure (bus stops). Based on the results of the study, the level of service provided by Transmetro Pekanbaru has not been able to satisfy the user community.  __________________________________________________________
Analisis Pengaruh Kondisi Perkerasan Jalan Terhadap Kecepatan Kendaraan M Novrizal Elsandi; Leo Santosa; Gunawan Wibisono
Racic : Rab Construction Research Vol. 10 No. 2 (2025): DESEMBER
Publisher : LPPM Universitas Abdurrab

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36341/racic.v10i2.6400

Abstract

Roads are transportation infrastructures that play an important role in supporting community mobility and regional development. The Dompas-Sepotong (Siak Regency Border) road segment has suffered various damages, causing inconvenience and losses to its users. These damages impact user comfort and result in longer travel times. This study aims to determine the condition of the road pavement and the relationship between road condition and vehicle speed. The method used to assess the pavement condition is the Pavement Condition Index (PCI) method, as it is widely adopted and internationally accepted. Meanwhile, vehicle speed was measured through a moving vehicle survey based on Bina Marga Guideline No. 001/T/BNKT/1990. The correlation between road condition and vehicle speed was analyzed using regression analysis. The results of the study indicate various types of damage such as joint cracking, edge cracking, shoulder subsidence, alligator cracking, raveling, potholes, and aggregate polishing, with an average PCI value of 80, which falls into the "very good" category. The equation representing the relationship between PCI value and vehicle speed is Y = 28.3 + 0.419X, with an R² value of 0.937, indicating a very strong correlation. The better the road condition, the higher the vehicle speed. Therefore, improving road quality is highly recommended to ensure vehicle speeds meet provincial road standards.
Co-Authors Abdurrahman, Habib Abrar Rifqi Pratama Afdal Afdal Agus Ika Putra Agus Nugroho, Soewignjo Ahmad Fajriman Aidi Yani Fitri Ainiyyah Fadhilah Alfian Kamaldi Alfian Malik Alfikri, Nur Ali Imron Rusadi Andarsin Ongko Ardian Yolanda Ari Sandhyavitri Arief Rahman Arief Rijaldo Fajri Arif Rahman Avrilly Zesthree Mauliza Ayu Nofikasari Charla Putri Balqis Dhea Fitra Yofani Dinni Yunike Jasril Edy Saputra Eko Soebowo Erwin Erwin Fachrul Willian Fahri Hafisuddin Fahrurrozi Fandy Agisman Fauzi, Manyuk Febri Paramitha Ramadhani Ferisma Ratu Giri Ferry Fatnanta Frans Rezal Habib Abdurrahman Hasibuan, Putra S Hengki Tornando Horas Saut Maringan Marpaung Ihsanul Muslim Irvan Arisma Iskandar Romey Sitompul Ismeddyanto, Ismeddiyanto Ismi Siska Rahmayani Kairon Wika Rejeki Sembiring Kamaldi, Alfian Khairil Badry Khairul Umam Leo Santosa Leo Sentosa Lidno Fery hs M Novrizal Elsandi M Rendy Alfiansyah M. Shoffar Al Hafizh Mia Qoryati Michael Exaudi Siregar Milka Novita Manalu Mohd. Rizki Novianto Monita Olivia Monita Olivia Muhamad Yusa Muhammad Alfaridzi Adfan Muhammad Riyan Sabri Muhammad Rizky Muhammad Shalahuddin Muhammad Yusa Muhardi Niko Rizaldi Nur Alfikri Nurwijayanti Ori Patinsyah Qoryati, Mia R Rahmadani Rahmi Afifi Rahmi Afifi Ramadhan Yanuari Reno Diah Putri Rezha Yaren Ria Larici Rijaldo, Arief Rinaldi Rinaldi Roy Candra Rudy Satriya Pratama Satibi, Syawal Shakila Fuadah Lubis Soewignjo Agus Nugroho Soewignjo Agus Nugroho Sri Djuniati Suci Cahya Ferdilla Surgaroni uga Tika Oktaria Trivia Ariska Wicaksono Mahestra Noegroho Zakiyul Fuadi