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Evaluasi Stabilitas dan Kelelehan Campuran Laston Lapis Aus dengan Penambahan Botol Plastik Polyethylene Terephthalate Ida Farida; Subhan Mulyana; Via Muntiani
Jurnal Konstruksi Vol 23 No 1 (2025): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.23-1.1829

Abstract

Maraknya sampah botol plastik Polyethylene Terephthalate (PET) bisa dijadikan salah satu bahan tambah dalam campuran aspal. Penggunaan aspal yang dicampur dengan limbah botol plastik membantu memperkuat ikatan antar agregat dan mempermudah proses penggunaannya. Penelitian ini bertujuan untuk mengetahui nilai stabilitas dan kelelehan (flow) dari campuran aspal Asphalt Concrete–Wearing Course (AC-WC) dengan penambahan botol plastik PET menggunakan pengujian Marshall. Metode penelitian dilakukan secara eksperimen di laboratorium dengan acuan spesifikasi Bina Marga 2018. Variasi penambahan PET yang digunakan 0%; 4%; 6%; dan 8% dari berat aspal dengan Kadar Aspal Optimum 6,15%. Hasil penelitian menunjukkan bahwa nilai stabilitas tertinggi terdapat pada variasi 8% dengan nilai 1372,38 kg, namun tidak melebihi stabilitas campuran normal. Sementara itu, nilai kelelehan tertinggi juga terdapat pada variasi 8% dengan nilai 4,07 mm, tetapi tidak memenuhi spesifikasi Bina Marga 2018. Dalam penelitian ini, kadar PET maksimum adalah 7,83%, sedangkan kadar PET optimum adalah 5,94%.
Pemanfaatan Limbah Abu Tempurung Kelapa sebagai Filler pada Campuran Aspal terhadap Stabilitas dan Kelelehan Ida Farida; Subhan Mulyana; Delsa Tria Febis; Mochammad Suva Nugraha
Jurnal Konstruksi Vol 23 No 1 (2025): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.23-1.1852

Abstract

Perkerasan jalan yang baik sangat penting untuk keselamatan pengguna jalan. Seiring berjalannya waktu jumlah material alam yang tersedia semakin terbatas, maka dari itu perlu adanya inovasi material limbah untuk perkerasan jalan. Salah satu metode yang dapat digunakan adalah dengan menggunakan bahan filler modifikasi dalam campuran aspal. Limbah kelapa diantaranya tempurung kelapa bisa dijadikan salah satu bahan filler dalam campuran aspal. Penggunaan aspal dengan bahan filler abu tempurung kelapa diharapkan dapat meminimalisir penumpukan limbah kelapa. Selain itu, dapat mendukung keberlanjutan lingkungan dengan mengurangi limbah organik, menekan emisi karbon, mencegah pencemaran, dan mendukung pembangunan ramah lingkungan. Limbah tempurung kelapa yang digunakan berasal dari limbah kelapa parut di Pasar Wanaraja. Penelitian ini bertujuan untuk mengetahui nilai stabilitas dan kelelehan (flow) dari campuran aspal AC-WC dengan filler abu tempurung kelapa menggunakan pengujian Marshall. Metode penelitian dilakukan secara eksperimen di laboratorium dengan acuan spesifikasi Bina Marga 2018. Variasi modifikasi filler abu tempurung kelapa yang digunakan  yaitu 0%, 4%, 5%, dan 6% dari berat agregat dengan KAO 6,15%. Hasil dari penelitian ini untuk nilai stabilitas tertinggi yaitu pada variasi 5% dengan nilai 1128,58 kg menurun 25% dari campuran normal sebesar 1505,64 kg. Nilai kelelehan tertinggi yaitu pada variasi 6% dengan nilai 3,40 mm menurun 2,9% dari campuran normal sebesar 3,50 mm. Meskipun keduanya tidak melebihi nilai stabilitas campuran normal dan memenuhi spesifikasi Bina Marga 2018.
Pengaruh Substitusi Filler Kapur Tohor Terhadap Karakteristik Marshall Campuran Aspal Concrete Binder-Course (AC-BC) Subhan Mulyana; Sulwan Permana; Taupik Saepul Rohman
Jurnal Konstruksi Vol 23 No 2 (2025): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.23-2.2847

Abstract

The physical condition of roads can be improved by optimizing the performance of the asphalt mixture used. This study aims to analyze the effect of using quicklime as a filler material in AC-BC asphalt mixes. The research method used laboratory tests with variations in asphalt content of 4.5%, 5%, 5.5%, 6%, and 6.5% and variations in quicklime filler modification of 1%, 2%, 3%, 4%, and 5%. The tests included optimum asphalt content (OAC), stability, Marshall, fatigue (flow), and durability. The results showed that the optimum OAC was 6.25%, the highest stability was 1425 kg at a lime variation of 2%, the highest flow was 3.93 mm at a variation of 5%, and the best durability was 72.36% at a variation of 4%. These results meet the specifications of Bina Marga 2018 Revision 2, indicating that pure lime has the potential to be used as an alternative filler in asphalt mixtures.
Strategi Pemeliharaan Jalan dan Estimasi Perbaikan Berbasis Skor PCI Subhan Mulyana; Sulwan Permana; Tendi Rismansyah
Jurnal Konstruksi Vol 23 No 2 (2025): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.23-2.2852

Abstract

The road is a vital infrastructure that plays an essential role in supporting community mobility and economic growth. Damage to roads caused by traffic loads, weather factors, or suboptimal construction quality can reduce pavement performance. The Ciawitali–Banjarwangi Road section in Garut Regency serves as one of the main access routes connecting three districts—Banjarwangi, Singajaya, and Pendeuy. This road has experienced significant deterioration, including alligator cracking, longitudinal cracking, potholes, raveling, and depressions. Such conditions require appropriate maintenance strategies and repair budgeting. This study employs the Pavement Condition Index (PCI) method based on ASTM D6433-18 standards to evaluate the level of road damage. A quantitative descriptive approach was used through a visual field survey covering a 3.72 km section divided into 48 segments. The damage data were analyzed to determine the PCI value of each segment, from which maintenance strategies were formulated according to the damage category, and repair cost estimates were calculated based on the Garut Regent Regulation No. 54 of 2024. The results show that PCI values vary across segments, with an average PCI of 40.29, indicating a Poor condition. However, the recommended maintenance strategies were determined based on the PCI category of each segment, resulting in different repair recommendations according to the type and severity of damage found. In general, an overlay is also recommended for all surveyed segments to restore the pavement to its original condition. The estimated total cost required for rehabilitating the Ciawitali–Banjarwangi Road section is IDR 3,960,228,074.67. These findings are expected to serve as an alternative reference for the local government in planning road maintenance and estimating budgets based on the actual damage data obtained.
Pengaruh Karakteristik Lalu Lintas terhadap Kondisi Perkerasan Jalan Menggunakan IRI dan SDI Subhan Mulyana; Eko Walujodjati; Salma Fauzyah
Jurnal Konstruksi Vol 23 No 2 (2025): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.23-2.2871

Abstract

Population growth and increased economic activity have led to higher traffic volumes on roads, including on Jalan Limbangan–Leuwigoong in Garut Regency. This condition puts excessive pressure on flexible pavements, causing damage, reducing driving comfort, and increasing maintenance costs. This study aims to analyze the effect of vehicle volume and speed on road conditions using the International Roughness Index (IRI) and Surface Distress Index (SDI) indicators. Data were collected through traffic surveys, speed measurements, the RoadLab Pro application for IRI, and visual surveys based on Bina Marga guidelines for SDI. Simple linear regression analysis was used after classical assumption tests were not met in multiple regression. The results showed that vehicle volume and speed did not significantly affect IRI. Conversely, both had a significant effect on SDI, with a strong relationship: volume (R = 0.740; R² = 54.8%) and speed (R = 0.759; R² = 57.5%). This study confirms that traffic characteristics have a greater effect on road surface damage (SDI) than road roughness (IRI).
Pemetaan Kerusakan Jalan Menggunakan Metode Pavement Condition Index dan Metode Bina Marga Subhan Mulyana; Athaya Zhafirah; Isne Nabila Permata Sari
Jurnal Konstruksi Vol 23 No 2 (2025): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.23-2.2891

Abstract

Kamojang Garut Highway is a district road that serves as an alternative route between Bandung and Garut, passing through tourist and industrial areas. This road has suffered various types of damage, such as cracks, potholes, and deformation, which have reduced service quality and disrupted the socio-economic activities of the community. This study evaluates the condition of the road from STA 0+000 to STA 8+300 using the Pavement Condition Index (PCI) and Bina Marga methods. The PCI method involves a field survey to identify the type, severity, and extent of damage, then calculates the pavement condition index. The Bina Marga method assesses damage based on the road condition classification from the Directorate General of Highways. The results show an average PCI value of 43.37%, with a “fair” road surface condition that requires overlay. Based on Bina Marga, a damage score of 11 results in a condition value of 4, indicating priority for periodic maintenance. Mapping based on the Geographic Information System (GIS) using QGIS illustrates the spatial distribution of damage in detail, facilitating the identification of priority locations. This combination of methods provides a comprehensive, detailed, and applicable evaluation. The results of this study are expected to serve as a reference for local governments for more effective, efficient, and sustainable road repairs.
Karakteristik Marshall Campuran AC-WC Dengan Modifikasi Serbuk Karet Ban dan Filler Bata Merah Muhammad Ramdhan; Ida Farida; Subhan Mulyana
Jurnal Konstruksi Vol 24 No 1 (2026): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.24-1.2768

Abstract

Road pavement damage often occurs faster than its planned lifespan due to the selection of inappropriate asphalt and aggregate content. The use of tire rubber powder waste and red brick powder filler is offered as an alternative modification material to improve the performance of asphalt mixtures. The study aims to evaluate the effect of varying tire rubber powder with 5% red brick powder filler on the Marshall characteristics of AC-WC mixtures. The experiments were conducted in the laboratory with reference to the 2018 Bina Marga Specifications Division 6 Asphalt Pavement. The variations in rubber powder content used were 4%, 4.5%, 5.5%, and 6% of the asphalt weight, with an optimum asphalt content of 6.3%. The results showed that the optimum rubber powder content was 4%, with all Marshall parameters meeting the 2018 Bina Marga specifications, namely stability of 1067 kg, flow of 2.47 mm, VIM of 3.28%, VMA of 15.92%, VFB of 79.94%, and MQ of 432.69 kg/mm. At levels of 4.5–6%, some parameters still met the requirements, but the VIM value exceeded the maximum limit, potentially reducing structural strength. These findings indicate the potential for practical application in extending the service life of road pavements and support the principle of sustainability through the use of industrial waste as an asphalt mixture material.
Penerapan Area Traffic Control System berbasis Hasil Evaluasi Kinerja Simpang Bersinyal Ida Farida; Subhan Mulyana; Muhamad Yassin Al Fadhilah
Jurnal Konstruksi Vol 24 No 1 (2026): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.24-1.2851

Abstract

Pertumbuhan jumlah kendaraan bermotor di Kabupaten Garut menimbulkan kemacetan pada simpang bersinyal, terutama di Simpang Maktal yang menjadi penghubung pusat kota dengan jalur menuju wilayah selatan. Penelitian ini bertujuan menganalisis kinerja simpang sebagai dasar penerapan Area Traffic Control System (ATCS). Metode penelitian menggunakan pendekatan kuantitatif melalui survei lapangan pada jam puncak sore untuk memperoleh data volume lalu lintas dan rasio belok. Analisis kinerja dilakukan secara manual berdasarkan Pedoman Kapasitas Jalan Indonesia (PKJI 2023) yang meliputi perhitungan arus jenuh, kapasitas, derajat kejenuhan, tundaan, panjang antrean, dan tingkat pelayanan, serta dibandingkan dengan hasil simulasi menggunakan perangkat lunak PTV VISSIM Student Version 25. Hasil penelitian menunjukkan bahwa volume tertinggi terjadi pada pendekat B dengan derajat kejenuhan lebih dari 0,9, yang menandakan kondisi hampir jenuh. Perhitungan manual menghasilkan tundaan rata-rata sebesar 60 detik detik per satuan mobil penumpang dengan tingkat pelayanan D - F, sedangkan simulasi menunjukkan tundaan lebih tinggi pada setiap pendekat hingga mencapai tingkat pelayanan F. Temuan ini mengindikasikan bahwa penerapan ATCS berpotensi mengoptimalkan distribusi waktu hijau, menurunkan tundaan, serta meningkatkan efisiensi kinerja simpang bersinyal di Kabupaten Garut. Penelitian ini diharapkan dapat memberikan kontribusi dalam bidang rekayasa lalu lintas, khususnya pengembangan transportasi cerdas berbasis evaluasi kinerja simpang dan simulasi mikroskopis.
Analisis Karakteristik Campuran Aspal AC–WC Menggunakan Filler Silika untuk Meningkatkan Stabilitas dan Kelelehan Subhan Mulyana; Ida Farida; Rifki Ripaldi
Jurnal Konstruksi Vol 24 No 1 (2026): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.24-1.2966

Abstract

Early pavement damage is often caused by non-optimal asphalt mix composition, particularly related to filler selection. This study analyzes the effect of partial substitution of stone ash filler with silica (SiO2) on the Marshall characteristics of AC-WC asphalt mixtures using a quantitative experimental method. Marshall testing was conducted with silica contents of 0%, 2%, 4%, and 6% at an Optimum Asphalt Content of 6.3%, referring to the 2018 Bina Marga Specifications. The results show that silica contents of 2% and 4% satisfy all Marshall parameters, with stability values of 1011 kg and 950 kg, flow values of 2.97 mm and 3.43 mm, VIM of 3.62% and 4.17%, VMA of 16.22% and 16.70%, VFB of 78.88% and 79.26%, and MQ of 340.89 kg/mm and 276.72 kg/mm, respectively. The main contribution of this study is the identification of an overfilling mechanism at silica contents >=6% that leads to reduced stability. Practical implications indicate a potential material cost savings of 15-20% and the feasibility of silica as an alternative renewable filler, although durability performance (IKS of 89.28% and 69.91%) still requires improvement through anti-stripping treatment for long-term applications.
Pengaruh Substitusi Parsial Pasir Silika Sebagai Agregat Halus Terhadap Karakteristik Campuran Aspal AC-WC Berdasarkan Metode Marshall Subhan Mulyana; Athaya Zhafirah; Ari Fajar Gumilar
Jurnal Konstruksi Vol 24 No 1 (2026): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.24-1.2967

Abstract

The development of transportation infrastructure in Indonesia has increased the demand for high-quality pavement materials, particularly for the wearing course or Asphalt Concrete–Wearing Course (AC-WC), which functions as the top layer and directly receives traffic loads. One of the key factors determining pavement quality is fine aggregate. To date, fine aggregates are predominantly sourced from natural sand; however, its availability is limited and its quality is not always consistent. Therefore, alternative materials are needed to improve asphalt mixture performance. Silica sand, with its high SiO2 content, rough texture, and good hardness, has potential as a substitute for fine aggregate. The novelty of this study lies in a comprehensive evaluation of silica sand substitution variations (0%, 25%, 50%, and 75%) on the Marshall parameters of AC-WC to determine the optimum content that provides the best performance. The substitution limit of 75% was set based on economic considerations, as silica sand is more expensive than natural sand. Experimental laboratory testing was conducted in accordance with the 2018 Bina Marga General Specifications, with parameters including stability, flow, Void in Mixture (VIM), Void in Mineral Aggregate (VMA), Void Filled with Bitumen (VFB), and Marshall Quotient (MQ). The results indicate that the use of 25% and 50% silica sand increases stability while still meeting all Marshall parameters specified. However, at 75% substitution, although stability increases, the VIM and VMA values do not meet the required standards. From a durability perspective, the 25%–50% variations result in a stiffer mixture with potential cracking risk. Therefore, the optimum silica sand substitution content is in the range of 25%-50% for improving stability, although further evaluation of durability is required.
Co-Authors Ari Fajar Gumilar Delsa Tria Febis Eko Walujodjati Ida Farida Isne Nabila Permata Sari Mochammad Suva Nugraha Muhamad Yassin Al Fadhilah Muhammad Ramdhan Rifki Ripaldi Salma Fauzyah Salman Praditya Sulwan Permana Taupik Saepul Rohman Tendi Rismansyah Via Muntiani