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KARAKTERISTIK CAMPURAN ASPAL POROUS MENGGUNAKAN ASPAL MODIFIKASI CARIPHALTE DAN PENAMBAHAN GILSONITE Geni Firuliadhim; Arief Aszharri
PILAR Vol 18 No 2 (2023): Pilar: September 2023
Publisher : Politeknik Negeri Sriwijaya

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

Aspal porus merupakan campuran aspal jalan dengan komposisi agregat yang umumnya menggunakan hampir 90% komposisi agregat kasar. Dengan banyaknya keunggulan aspal porus, maka untuk meningkatkan kestabilan campuran aspal porus diperlukan aspal yang berkualitas tinggi sebagai bahan pengikat agregat. Untuk meningkatkan nilai karakteristiknya digunakan aspal modifikasi shell cariphalte dan penambahan gilsonite. Metode yang digunakan dalam penelitian ini adalah metode eksperimen dengan skala laboratorium. Pengujian yang dilakukan pada penelitian ini berupa pengujian aspal modifikasi cariphalte sebagai bahan pengikat dan agregat lokal yang terdapat di Bandung, Jawa Barat. Bahan tambah yang digunakan adalah gilsonite dengan variasi 4%, 5%, 6%, 7%, dan 8% yang kemudian digunakan untuk menguji karakteristik Marshall.

KINERJA CAMPURAN ASPAL BETON PORUS MENGGUNAKAN ASPAL KARET ALAM PADAT Sumiati sumiati; Sheragizca Yolanda Situmeang; Arief Aszharri
Teras Jurnal : Jurnal Teknik Sipil Vol. 16 No. 1 (2026): Teras Jurnal
Publisher : UNIVERSITAS MALIKUSSALEH

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/tj.v16i1.1337

Abstrak Aspal beton padat memiliki permeabilitas rendah sehingga air hujan sulit meresap, yang berpotensi menimbulkan genangan dan menurunkan keselamatan lalu lintas. Aspal beton porus dikembangkan sebagai alternatif dengan struktur gradasi terbuka yang menghasilkan rongga saling terhubung, sehingga memungkinkan air mengalir ke lapisan bawah perkerasan. Namun, karakteristik ini umumnya berdampak pada penurunan stabilitas campuran. Penelitian ini bertujuan menganalisis pengaruh jenis aspal dan gradasi agregat terhadap kinerja mekanik dan hidrologis aspal beton porus. Variasi yang digunakan meliputi aspal termodifikasi AKAP PG-76 dan aspal konvensional PEN 60/70, serta gradasi agregat AAPA dan British Standard. Benda uji disiapkan dari kombinasi kedua jenis aspal dan gradasi, kemudian diuji menggunakan pengujian Marshall, Cantabro, dan permeabilitas. Hasil penelitian menunjukkan bahwa penggunaan AKAP PG-76 meningkatkan stabilitas Marshall dan ketahanan keausan campuran, sedangkan variasi gradasi agregat berpengaruh signifikan terhadap nilai permeabilitas. Temuan ini memberikan dasar teknis dalam pemilihan kombinasi material untuk meningkatkan kinerja aspal beton porus. Kata kunci: Aspal beton porus; Stabilitas Marshall; Permeabilitas; Gradasi agregat; Uji Cantabro Abstract Dense asphalt concrete has low permeability, which limits rainwater infiltration and may cause surface ponding that reduces traffic safety. Porous asphalt concrete has been developed as an alternative by employing an open-graded structure with interconnected voids, allowing water to drain into underlying pavement layers. However, this characteristic often leads to lower mixture stability compared to conventional asphalt concrete, requiring a balance between mechanical and hydraulic performance. This study analyzes the effects of asphalt type and aggregate gradation on the mechanical and hydrological performance of porous asphalt concrete. The variables include modified asphalt AKAP PG-76 and conventional asphalt PEN 60/70, as well as AAPA and British Standard aggregate gradations. Specimens were prepared from combinations of asphalt types and gradations and evaluated using Marshall stability, Cantabro abrasion resistance, and permeability tests. The results indicate that AKAP PG-76 improves Marshall stability and abrasion resistance, while aggregate gradation plays a dominant role in controlling permeability. These findings provide insight into optimizing porous asphalt mixtures through binder modification and gradation design. Keywords: Porous asphalt concrete; Marshall stability; Permeability; Aggregate gradation; Cantabro test

KINERJA CAMPURAN ASPAL BETON PORUS MENGGUNAKAN ASPAL KARET ALAM PADAT Sumiati sumiati; Sheragizca Yolanda Situmeang; Arief Aszharri
Teras Jurnal : Jurnal Teknik Sipil Vol. 16 No. 1 (2026): Teras Jurnal
Publisher : UNIVERSITAS MALIKUSSALEH

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/tj.v16i1.1337

Abstrak Aspal beton padat memiliki permeabilitas rendah sehingga air hujan sulit meresap, yang berpotensi menimbulkan genangan dan menurunkan keselamatan lalu lintas. Aspal beton porus dikembangkan sebagai alternatif dengan struktur gradasi terbuka yang menghasilkan rongga saling terhubung, sehingga memungkinkan air mengalir ke lapisan bawah perkerasan. Namun, karakteristik ini umumnya berdampak pada penurunan stabilitas campuran. Penelitian ini bertujuan menganalisis pengaruh jenis aspal dan gradasi agregat terhadap kinerja mekanik dan hidrologis aspal beton porus. Variasi yang digunakan meliputi aspal termodifikasi AKAP PG-76 dan aspal konvensional PEN 60/70, serta gradasi agregat AAPA dan British Standard. Benda uji disiapkan dari kombinasi kedua jenis aspal dan gradasi, kemudian diuji menggunakan pengujian Marshall, Cantabro, dan permeabilitas. Hasil penelitian menunjukkan bahwa penggunaan AKAP PG-76 meningkatkan stabilitas Marshall dan ketahanan keausan campuran, sedangkan variasi gradasi agregat berpengaruh signifikan terhadap nilai permeabilitas. Temuan ini memberikan dasar teknis dalam pemilihan kombinasi material untuk meningkatkan kinerja aspal beton porus. Kata kunci: Aspal beton porus; Stabilitas Marshall; Permeabilitas; Gradasi agregat; Uji Cantabro Abstract Dense asphalt concrete has low permeability, which limits rainwater infiltration and may cause surface ponding that reduces traffic safety. Porous asphalt concrete has been developed as an alternative by employing an open-graded structure with interconnected voids, allowing water to drain into underlying pavement layers. However, this characteristic often leads to lower mixture stability compared to conventional asphalt concrete, requiring a balance between mechanical and hydraulic performance. This study analyzes the effects of asphalt type and aggregate gradation on the mechanical and hydrological performance of porous asphalt concrete. The variables include modified asphalt AKAP PG-76 and conventional asphalt PEN 60/70, as well as AAPA and British Standard aggregate gradations. Specimens were prepared from combinations of asphalt types and gradations and evaluated using Marshall stability, Cantabro abrasion resistance, and permeability tests. The results indicate that AKAP PG-76 improves Marshall stability and abrasion resistance, while aggregate gradation plays a dominant role in controlling permeability. These findings provide insight into optimizing porous asphalt mixtures through binder modification and gradation design. Keywords: Porous asphalt concrete; Marshall stability; Permeability; Aggregate gradation; Cantabro test

Assessing Microcell Tower Placement Feasibility Based on Road Geometry, Traffic Safety, and Road User Perception: Evidence from Jalan Ogan, Palembang City Dimas Ariezky Susetyo; Norca Praditya; Arief Aszharri; Rajinda Syadzali Bintang; Bobby Fandra
International Journal Of Economics Social And Technology Vol. 5 No. 2 (2026): June, 2026
Publisher : Lembaga Riset Ilmiah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59086/ijest.v5i2.1825

This study evaluates the feasibility of microcell tower placement within an urban road environment by integrating road geometric conditions, traffic performance, roadside safety, road-space utilization, and road user perception. The study addresses a gap in existing infrastructure assessment, which tends to evaluate telecommunication facilities primarily from technical, operational, or regulatory perspectives, with limited integration of roadside safety and user-centered considerations. A descriptive-evaluative case study approach was employed at Jalan Ogan, Palembang City, Indonesia, with the primary focus on a microcell tower located on the shoulder of Jalan Ogan Tenggara. Primary data were obtained through road geometric surveys, traffic observations, roadside safety inspections, questionnaires, and interviews, while secondary data included road classification, accident information, and relevant regulations. Geometric conditions were assessed through alignment, gradient, cross-section, and sight-distance evaluation, while traffic performance was analyzed using the Indonesian Highway Capacity Guidelines (PKJI) 2023. The findings show that the road generally supports the placement from geometric and operational perspectives, with a degree of saturation below 0.20 and Level of Service A. However, the tower remains a roadside safety concern because it is positioned on or near the shoulder, its foundation is close to the road body, and adequate physical protection, warning signs, and visual delineation are not yet available. Road user perceptions similarly indicate that the tower does not significantly disrupt traffic flow but raises safety concerns related to its roadside position and limited protection. The study's principal contribution is an integrated feasibility framework that treats telecommunication infrastructure as a roadside safety object rather than solely as a digital infrastructure facility. The tower is therefore classified as conditionally feasible, subject to adequate roadside clearance, physical protection, warning devices, pavement markings, and periodic safety inspection. The findings highlight the need to align digital infrastructure development with road safety and sustainable urban transport principles.

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