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All Journal Rang Teknik Journal Journal of Artificial Intelligence and Digital Business Scripta Technica: Journal of Engineering and Applied Technology Resocia: International Journal of Applied Research and Innovation Technema: Journal of Intelligent Engineering and Computing
Antonius Antonius
Universitas Islam Sultan Agung Semarang
Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Mechanical Engineering

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STUDI EVALUASI PERENCANAAN JALAN RUAS JALAN KR.SANTRI – GUNUNGPRING MUNTILAN KAB. MAGELANG Agus Pujiharto; Antonius Antonius; M Faiqun Ni’am
Rang Teknik Journal Vol 6, No 1 (2023): Vol. 6 No. 1 Januari 2023
Publisher : Fakultas Teknik Universitas Muhammadiyah Sumatera Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (420.187 KB) | DOI: 10.31869/rtj.v6i1.3473

Abstract

Latar belakang kajian evaluasi perencanaan jalan Kr.Santri – Gunungpring karena di ruas jalan tersebut terdapat makam Wali yang sampai saat ini masih banyak dikunjungi masyarakat dari berbagai kota di jawa bahkan ada yang dari luar jawa. Dengan kondisi jalan saat ini yang terdapat beberapa lokasi jalan mengalami retak dan penurunan pada badan jalan, bagian jalan retak tersebut perlu dilakukan kajian teknis sebagai dasar perbaikan jalan yang mengalami retak dan penurunan tersebut. Metodologi kajian studi evalusi perencanaan jalan Kr.Santri – Gunungpring adalah, pertama tama melakukan studi kondisi kualitas lapis perkerasan jalan lama dengan dilakukan pengamatan secara langsung pada kondisi eksisting permukaan aspal jalan lama. Setelah itu dilakukan pengamatan LHR pada ruas jalan tersebut dengan berdasarkan kepada ,perhitungan forecast LHR kedepan dalam waktu 1 hingga 10 tahun yang terakhir dilakukan test DCP pada tepi jalan Kr.Santri-Gunungpring. Dengan demikian bisa diketahui kondisi lapis pondasi dan lapis perkerasan jalan tsb dan dapat diketahui juga hasil CBR berdasarkan test DCP nya. Hasil dari pengamatan pada kondisi dan kualitas lapis perkerasan permukaan jalan Kr.Santri-Gunungpring diketahuai pada sisi kiri jalan terjadi retakan dan penurunan pada lokasi ts. Nilai Cbr rata-rata dari hasil test DCP setiap 200 meter adalah 5,46%. Sehingga perlu dilakukan perbaikan dengan melakukan pembongkaran pada kondisi aspal yang retak tsb selanjutnta dilakukan galian pada pondasi jalan yang lama lalu diganti dengan material Agregat kelas A, diatasnya dilakukan pengaspalan dengan AC BASE tebal 7 cm,setelah itu dilakukan Overlay dua lapias AC BC 6 cm dan AC WC 4 cm dari hasil test CBR dilapangan maka untuk tebal Agregat kelas A 30 cm. Pada hasil evaluasi berdasar pada perhitungan LHR dalam waktu 1tahun sampai dengan 10 tahun kedepan dihasilkan perhitungan kapasitas ruas jalan Kr. Santri-Gunungpring dengan 6 meter sehingga tidak perlu dilakukan pelebaran jalan.
Analisis Kuat Tekan, Kuat Tarik Belah, dan Kuat Lentur Beton Self Compacting Concrete (SCC) dengan Penambahan Abu Sekam Padi Bintang Putra Mahardhika; Dendi Irawan Irawan; Antonius Antonius
RIGGS: Journal of Artificial Intelligence and Digital Business Vol. 5 No. 2 (2026): Mei-Juli
Publisher : Prodi Bisnis Digital Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/riggs.v5i2.8790

Abstract

Penelitian ini bertujuan untuk menganalisis pengaruh penambahan abu sekam padi terhadap kuat tekan, kuat tarik belah, dan kuat lentur beton Self Compacting Concrete (SCC) dengan penggunaan superplasticizer Viscocrete 3115 N. Metode penelitian yang digunakan ialah metode eksperimen laboratorium dengan variasi substitusi abu sekam padi sebesar 0%, 5%, dan 10% dari berat semen. Pengujian beton segar dilakukan menggunakan metode slump flow, V-funnel, dan L-box berdasarkan standar EFNARC untuk mengetahui karakteristik SCC. Pengujian sifat mekanik beton meliputi kuat tekan pada umur 7 hari dan 28 hari, kuat tarik belah, serta kuat lentur beton. Hasil penelitian menunjukkan bahwa seluruh variasi campuran masih memenuhi persyaratan beton SCC berdasarkan standar EFNARC dengan nilai slump flow 680–700 mm, V-funnel 9–12,20 detik, dan L-box 0,80–0,88. Hasil pengujian kuat tekan menunjukkan bahwa variasi abu sekam padi 5% menghasilkan kuat tekan optimum sebesar 34,712 MPa pada umur 28 hari, lebih tinggi dibandingkan beton normal sebesar 33,940 MPa. Namun, penambahan abu sekam padi sebesar 10% menyebabkan penurunan kuat tekan menjadi 25,262 MPa. Pada pengujian kuat tarik belah dan kuat lentur, nilai kekuatan beton cenderung menurun seiring bertambahnya kadar abu sekam padi. Variasi beton normal menghasilkan kuat tarik belah tertinggi sebesar 3,086 MPa dan kuat lentur sebesar 4,299 MPa. Berdasarkan hasil penelitian dapat disimpulkan bahwa penggunaan abu sekam padi sebesar 5% merupakan variasi optimum karena masih mampu meningkatkan kuat tekan beton SCC tanpa mengurangi karakteristik beton segar secara signifikan.
Studi Komparasi Kuat Tekan dan Kuat Tarik Beton Self-Compacting Concrete dengan Substitusi Fly Ash dan Silica Fume Anandha Risal Ariyanto; Ahmad Nur Syariffudin; Antonius Antonius
Journal of Engineering and Applied Technology Vol 2 No 1 (2026): : June: Scripta Technica: Journal of Engineering and Applied Technology
Publisher : CV SCRIPTA INTELEKTUAL MANDIRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.65310/8rdzcs84

Abstract

Self-Compacting Concrete (SCC) is an innovative concrete that can flow and compact itself without a compactor, making it highly effective for use in structures with dense reinforcement and complex shapes. However, the high cement requirements of SCC increase costs and carbon emissions, necessitating alternatives in the form of pozzolanic material substitutions such as fly ash and silica fume. This study aimed to analyze the effect of these two materials on the compressive and splitting tensile strength of SCC concrete through experimental methods with substitution variations of 0%, 10%, and 15% of the cement weight, as well as testing of fresh properties according to standards. The results showed that pozzolanic material substitution improved the mechanical performance of SCC, but to varying degrees. The addition of 10% fly ash only provided a moderate increase in compressive strength of approximately 4% at 28 days and had no significant effect on splitting tensile strength. On the other hand, 10% silica fume proved to be the most optimal composition because it produced the highest compressive strength of 57.49 MPa (an increase of about 28% from normal concrete) and increased the splitting tensile strength to 3.58 MPa, making it more effective for high-quality SCC.  
Mechanical Properties Analysis of Concrete Using Grouting Cement and Wood Charcoal as Cement Substitutes Ilham Akbar Arrafi; Amin Nur Rokhim; Antonius Antonius; Muhamad Rusli Ahyar
Technema: Journal of Intelligent Engineering and Computing Vol. 1 No. 2 (2026): : June: Technema: Journal of Intelligent Engineering and Computing
Publisher : CV SCRIPTA INTELEKTUAL MANDIRI

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

Abstract

Concrete is one of the most widely used construction materials in infrastructure development, yet the extensive use of Portland cement contributes substantially to carbon dioxide emissions from cement production. This study investigates grouting cement and wood charcoal as partial cement substitutes in K-300 concrete to reduce conventional cement consumption while utilizing wood-derived waste. An experimental study was conducted at the Material Mechanics Laboratory, Faculty of Engineering, Universitas Islam Sultan Agung, using substitution levels of 0%, 5% (2.5% grouting cement and 2.5% wood charcoal), and 10% (7.5% grouting cement and 2.5% wood charcoal). Cylindrical specimens measuring 150 × 300 mm were used for compressive and splitting tensile tests, while 600 × 150 × 150 mm beams were used for flexural testing at 7 and 28 days. The results showed that the 5% substitution provided the best mechanical performance at 28 days, achieving an average compressive strength of 19.398 MPa, an 18.26% increase over normal concrete, splitting tensile strength of 2.900 MPa, a 45.73% increase, and flexural strength of 3.029 MPa, a 3.73% increase. The 10% substitution reduced mechanical performance, indicating that excessive carbonaceous material may hinder effective cementitious matrix development. The findings identify 5% substitution as the most favorable composition under the investigated conditions. The results provide an empirical basis for optimizing alternative cementitious materials while maintaining acceptable fresh-concrete workability and mechanical performance.  
Structural Feasibility Analysis of PT Phapros Building Subjected to Additional Machinery Loads Ilham Nadhif Pratama; Muhammad Rizal Ramli; Antonius Antonius; Lisa Fitriyana
International Journal of Applied Research and Innovation Vol. 1 No. 3 (2026): : July: Resocia: International Journal of Applied Research and Innovation
Publisher : CV SCRIPTA INTELEKTUAL MANDIRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.65310/ae5c5468

Abstract

This study evaluates the structural feasibility of Building H at PT Phapros Tbk Semarang under existing conditions and after the planned addition of machinery loads. The assessment combined visual inspection, non-destructive testing using Rebound Hammer, Rebar Detector, Ultrasonic Pulse Velocity, carbonation testing, and structural analysis using ETABS. Structural performance was evaluated according to SNI 2847:2019, SNI 1726:2019, and SNI 1727:2020. The results show that the existing concrete condition was generally adequate, while structural deficiencies were identified in several critical components. Inter-story drift in the upper stories exceeded the allowable limit, indicating insufficient seismic performance. Beam sections generally satisfied flexural requirements, although several support regions were inadequate in shear. The columns did not satisfy the Strong Column–Weak Beam requirement and showed deficiencies in flexural, shear, and confinement performance. After the addition of machinery loads, column axial and bending demands increased considerably, while the maximum slab moment increased from 6.44 to 18.58 kN·m but remained below its reduced flexural capacity of 37.09 kN·m. Structural strengthening, particularly of the column system, is required before the additional machinery is permanently installed.  
Co-Authors Agus Pujiharto Ahmad Nur Syariffudin Amin Nur Rokhim Anandha Risal Ariyanto Bintang Putra Mahardhika Dendi Irawan Irawan Ilham Akbar Arrafi Ilham Nadhif Pratama Lisa Fitriyana M Faiqun Ni’am Muhamad Rusli Ahyar Muhammad Rizal Ramli