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All Journal Paduraksa : Jurnal Teknik Sipil Universitas Warmadewa Sinergi AGREGAT Media Ilmiah Teknik Sipil Jurnal Pengabdian Masyarakat dan Riset Pendidikan
Muhammad Azhar
Program Studi Teknologi Rekayasa Konstruksi Jalan Dan Jembatan, Politeknik Negeri Tanah Laut, Kalimantan Selatan, Indonesia
Humanities Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Education Electrical & Electronics Engineering Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Mathematics Transportation Other

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Effect of curing temperature on the soil physical and mechanical properties on clay shale geopolymer fly ash stabilization Hartono, Edi; Diana, Willis; Muntohar, Agus Setyo; Azhar, Muhammad; Indriani, Lia
SINERGI Vol 29, No 1 (2025)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/sinergi.2025.1.005

Abstract

Clay shale is an easily degraded mudrock when exposed to weathering. The reduced strength due to degradation can be mitigated through soil stabilization. In recent years, soil stabilization using geopolymers has become one of the latest popular methods due to its economic benefits and lower carbon footprint. A widely used cementitious material for this method is fly ash-based geopolymer. The relationship between curing temperatures and the performance of clay shale stabilized with fly ash-based geopolymer has yet to be studied for the purpose of identifying a more effective stabilization method. In this study, clay shale was stabilized using geopolymer. The geopolymer was made of fly ash and an activator. Sodium hydroxide (NaOH) and sodium silicate (Na2SiO3) as activators. The activator is diluted with water to create a 12 M mixture. Before the unconfined compressive strength test, the specimens were subjected to various curing temperatures from 26oC to 60oC. The test result shows that, in general, higher curing temperatures increased the dry density from 1.66 g/cm3 to 1.84 g/cm3. Meanwhile, the unconfined compressive strength multiplies about 3.5 times. Furthermore, the moisture content decreased after the curing process from 19% to 2.5%. This led to the specimen volume experiencing decrement due to the shrinkage during the curing period. The volume reduces from 67.7 cm3 to 63.5 cm3. In general, temperature plays a significant role in enhancing the strength of clay shale stabilized using fly ash-based geopolymer.
Analisis Keterkaitan Nilai Dynamic Cone Penetrometer (DCP) Terhadap Tingkat Kerusakan Perkerasan Dengan Metode Pavement Condition Index (PCI) Pada Ruas Jalan Bajuin Norminawati Dewi; Muhammad Azhar; Marlia Adriana
AGREGAT Vol 10 No 2 (2025)
Publisher : Universitas Muhammadiyah Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30651/ag.v10i2.28569

Abstract

Penelitian ini bertujuan untuk menganalisis hubungan antara nilai California Bearing Ratio (CBR) hasil uji Dynamic Cone Penetrometer (DCP) dengan tingkat kerusakan perkerasan jalan yang dinilai menggunakan metode Pavement Condition Index (PCI). Lokasi penelitian berada di ruas Jalan Bajuin sepanjang 900 meter dengan 18 titik pengujian. Hasil pengujian menunjukkan bahwa nilai CBR berkisar antara 5,9 hingga 37,7, sedangkan nilai PCI menggambarkan kondisi perkerasan yang bervariasi dari gagal hingga baik. Analisis korelasi antara nilai CBR dan PCI menghasilkan koefisien sebesar -0,23202 yang tergolong sangat lemah dan tidak signifikan karena lebih kecil dari nilai r tabel (0,468). Temuan ini mengindikasikan bahwa kondisi tanah dasar yang direpresentasikan oleh nilai DCP bukan merupakan faktor penyebab utama kerusakan jalan pada ruas tersebut. Faktor lain seperti beban lalu lintas yang tinggi dan kondisi struktur perkerasan yang kurang optimal memiliki pengaruh yang lebih dominan terhadap tingkat kerusakan yang terjadi
Asesmen Kerusakan Bangunan Sekolah dan Penyusunan Rekomendasi Prioritas Perbaikan untuk Meningkatkan Keamanan dan Kenyamanan : Pengabdian Kurniawan, Budi; Azhar, Muhammad; Munajar, Muhammad Chairi; Fajariah, Nurul; Della, Alfa
Jurnal Pengabdian Masyarakat dan Riset Pendidikan Vol. 4 No. 3 (2026): Jurnal Pengabdian Masyarakat dan Riset Pendidikan Volume 4 Nomor 3 (Januari 202
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jerkin.v4i3.3934

Abstract

The community service activity was carried out to assist SMPS Waladun Sholeh in conducting an inspection of school building conditions, specifically regarding structural, architectural, and utility elements, which have posed challenges due to limited technical expertise within the school. The inspection plays an important role since school buildings are fundamental to maintaining the continuity of the teaching–learning process. The method employed was on-site inspection, including visual observation, measurements, inventorying building elements, and quantitative analysis of damage levels. In addition, interviews were conducted with school representatives to obtain supporting information regarding the history of damage and maintenance. The activity stages included: (a) initial coordination and collection of basic building data; (b) field inspection of structural, architectural, and utility components; (c) analysis of damage levels and determination of the building condition category; and (d) dissemination of inspection results and proposed follow-up plans to the school. The results indicate that most building components remain in good condition, with minor damage predominating and accounting for 13.40% of the total elements inspected. However, an uneven settlement of the foundation was detected, causing cracks and deformations in several parts of the building.
Analisis Dampak Pembangunan Gedung Terhadap Kinerja Jaringan Jalan Di Kecamatan Murung Pudak, Kabupaten Tabalong: Traffic Impact Analysis Of Building Development On Road Network Performance In Murung Pudak, Indonesia Hidayat, Muya Ryan; Ridhani Noor Fauzi, Ahmad; Azhar, Muhammad
Media Ilmiah Teknik Sipil Vol. 14 No. 1 (2026): Media Ilmiah Teknik Sipil
Publisher : ​Institute for Researches and Community Services Universitas Muhammadiyah Palangkaraya

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

Abstract

The development of buildings in urban areas has the potential to increase trip generation and attraction, which in turn affects the performance of the surrounding road network. This condition needs to be examined, particularly in areas with relatively high traffic growth, such as Jl. Ir. PH. Moch. Noor, Murung Pudak District, Tabalong Regency. This study aims to evaluate existing traffic conditions and road performance, and subsequently compare them with the performance of the road network after the building becomes operational. The methods employed include traffic volume surveys on four road segments surrounding the development site, road capacity analysis based on the Indonesian Highway Capacity Guidelines (PKJI) 2023, and traffic projection modeling using trip generation (ITE), trip distribution (Furness method), and traffic assignment with the CONTRAM software. The results indicate that under existing conditions, road performance ranges from Level of Service (LOS) A to C. However, in the five-year post-operation projection, several road segments experience an increase in the degree of saturation, reaching LOS D, particularly on segments with the highest traffic volumes. The newly generated and attracted trips, combined with overall traffic growth, have the potential to degrade road performance if not accompanied by adequate traffic management and access control measures implemented by the facility operator to maintain the performance of the road network.
Aplikasi perangkat lunak AFES untuk perancangan pondasi dangkal pada kandang ayam close house di Politeknik Negeri Tanah Laut Norminawati Dewi; Muhammad Azhar; Muhammad Rizan Adam
PADURAKSA: Jurnal Teknik Sipil Universitas Warmadewa Vol. 13 No. 2 (2024)
Publisher : Program Studi Teknik Sipil, Fakultas Teknik dan Perencanaan, Universitas Warmadewa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22225/pd.13.2.10942.167-176

Abstract

The construction of a poultry house with a close house system at Politeknik Negeri Tanah Laut aims to support student learning and research in modern agricultural practices. This facility integrates cutting-edge technology for optimal environmental control, providing a practical platform for academic. The primary focus of this study is to analyze soil investigation data and demonstrate the efficiency of shallow foundation design using the AFES software. Soil investigation at the project site revealed that the subsoil predominantly consists of clayey silt to silty clay, with depths ranging from 0.4 m to 6.6 m at borehole S1 and 0.6 m to 8.0 m at borehole S2. These findings provided essential input parameters for the foundation design process. Utilizing AFES software significantly streamlined the design workflow by offering three key outputs design drawings, 3D models, and detailed reinforcement and design criteria summarized in a comprehensive report. Additionally, the software generated a bill of materials, facilitating accurate cost estimation for the foundation construction. The results demonstrate the practical application of AFES in accelerating foundation design while maintaining accuracy and efficiency. This study underscores the importance of integrating advanced computational tools with thorough geotechnical investigation, offering a reliable and cost-effective foundation solution tailored to the unique requirements of the site.
Evaluasi Metode Instalasi Sensor Kapasitif Berbiaya Rendah untuk Pemantauan Kadar Air Tanah pada Lereng Berbasis IoT: Evaluation Of Low-Cost Capacitive Sensor Installation Methods For IoT-Based Soil Moisture Monitoring On Slopes Muhammad Azhar
Media Ilmiah Teknik Sipil Vol. 14 No. 2 (2026): Media Ilmiah Teknik Sipil
Publisher : ​Institute for Researches and Community Services Universitas Muhammadiyah Palangkaraya

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Abstract

This study evaluates the effect of installation methods of low-cost capacitive soil moisture sensors on field measurement performance. Six sensors were tested using two installation methods, namely side mount and bottom mount, at three depth variations (0.2 m, 0.5 m, and 1 m). A monitoring system was developed using an ESP32 microcontroller integrated with the Firebase cloud platform for real-time data acquisition, powered by a solar panel. Field testing was conducted from March 10 to April 16, 2026, with GPM satellite rainfall data used as a supporting parameter. Calibration results showed a strong linear relationship between sensor output voltage and volumetric water content with R2>0.9 for all sensors. The bottom mount method produced valid readings from the beginning of the testing period with good response to rainfall events at all depths. In contrast, the side mount method experienced a delay in sensor–soil contact formation, resulting in invalid data during the early phase. The findings indicate that the quality of physical contact between the sensor and soil is a key factor in reading reliability, and the bottom mount method is more effective for long-term field soil moisture monitoring.
Co-Authors Agus Setyo Muntohar Budi Kurniawan Della, Alfa Edi Hartono Fajariah, Nurul Indriani, Lia Marlia Adriana Muhammad Rizan Adam Munajar, Muhammad Chairi Muya Ryan Hidayat Norminawati Dewi Norminawati Dewi Ridhani Noor Fauzi, Ahmad Willis Diana