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All Journal Jurnal Penelitian Rumpun Ilmu Teknik Globe: Publikasi Ilmu Teknik, Teknologi Kebumian, Ilmu Perkapalan Journal Serambi Engineering (JSE)
Muh. Jabir M
Universitas Muhammadiyah Parepare
Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Earth & Planetary Sciences Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Mechanical Engineering

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Pengaruh Penambahan Biochar Terhadap Kinerja Beton Self Compacting Concrete Muh. Jabir M
Jurnal Serambi Engineering Vol. 11 No. 3 (2026): Juli 2026
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

Biochar digunakan sebagai bahan tambah dalam campuran beton dengan variasi 0%, 5%, 10%, dan 20% terhadap agregat halus. Penelitian dilakukan di Laboratorium Struktur dan Bahan Program Studi Teknik Sipil Universitas Muhammadiyah Parepare menggunakan benda uji silinder berukuran 15 cm × 30 cm. Pengujian meliputi slump test, kuat tekan pada umur 7, 14, dan 28 hari, serta absorpsi air berdasarkan SNI 03-2914-1992. Hasil penelitian menunjukkan bahwa penambahan biochar memengaruhi sifat beton SCC. Nilai slump menurun dari 86,7 mm pada beton normal menjadi 81,7 mm, 78,3 mm, dan 75 mm pada variasi biochar 5%, 10%, dan 20%. Kuat tekan beton umur 28 hari juga mengalami penurunan dari 21,703 MPa menjadi 18,495 MPa, 17,929 MPa, dan 13,399 MPa. Sebaliknya, nilai absorpsi air meningkat dari 1,04% pada beton normal menjadi 1,23%, 1,44%, dan 1,79%. Dengan demikian, penambahan biochar cenderung menurunkan workability dan kuat tekan beton SCC, tetapi meningkatkan absorpsi air beton.
Penggunaan Limbah Tongkol Jagung Sebagai Bahan Tambah pada Pembuatan Bata Ringan Ahmad Alfanzuhri; Adnan Adnan; Muh. Jabir M
Jurnal Penelitian Rumpun Ilmu Teknik Vol. 5 No. 3 (2026): Jurnal Penelitian Rumpun Ilmu Teknik
Publisher : Lembaga Pengembangan Kinerja Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/juprit.v5i3.6882

Abstract

Abundant corn cob waste in Malua District, Enrekang Regency, holds potential for use as an additive in lightweight brick production, offering a way to reduce cement consumption while enhancing the utilization of agricultural waste. This study aimed to determine the effect of adding corn cob charcoal on the water absorption and compressive strength of lightweight bricks. An experimental method was employed at the Structures and Materials Laboratory, utilizing corn cob charcoal addition levels of 2.5%, 5.0%, and 7.5%. Testing was conducted at curing ages of 7, 14, and 28 days. The parameters tested included weight, water absorption, and compressive strength. The results indicate that the addition of corn cob charcoal influenced the water absorption of lightweight bricks at 28 days; specifically, higher percentages of corn cob charcoal addition resulted in higher water absorption values. The lowest water absorption value (14.50%) was observed at the 2.5% addition level, increasing to 17.48% at the 5.0% level, and rising further to 26.24% at the 7.5% level. Regarding compressive strength at 28 days, higher percentages of corn cob charcoal addition resulted in lower compressive strength values. The highest compressive strength (1.00 MPa) was obtained at the 2.5% addition level, decreasing to 0.875 MPa at the 5.0% level, and dropping further to 0.625 MPa at the 7.5% level.
Analisa Efisiensi Penyerapan Air Hujan dengan Desain Sumur Resapan Hania Noorunnissa; Rahmawati Rahmawati; A. Bustan Didi; Imam Imam; Adnan Adnan; Muh. Jabir M
Globe: Publikasi Ilmu Teknik, Teknologi Kebumian, Ilmu Perkapalan Vol. 4 No. 3 (2026): Agustus : Publikasi Ilmu Teknik, Teknologi Kebumian, Ilmu Perkapalan
Publisher : Asosiasi Riset Ilmu Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/globe.v4i3.1642

Abstract

Rainwater runoff problems in road areas may occur due to high rainfall intensity and the limited capacity of the soil to infiltrate water into the ground. Such conditions can lead to waterlogging on road shoulders and in the surrounding areas, potentially disrupting the function and comfort of road users and accelerating road pavement deterioration. One alternative that can be implemented to reduce surface runoff is the use of infiltration wells as a rainwater conservation measure. This study aims to analyze the efficiency of rainwater infiltration using infiltration wells on the road shoulder along the Tanete Rilau road section, Barru Regency. The study was conducted by collecting data on rainfall, existing road shoulder conditions, catchment area, soil characteristics, and the dimensions and conditions of the proposed infiltration wells. The analysis included the calculation of rainfall intensity and runoff discharge, the volume of rainwater entering the infiltration wells, storage capacity, and soil infiltration capacity. The efficiency of the infiltration wells was determined based on the ratio between the volume of rainwater successfully infiltrated into the soil and the volume of rainwater runoff entering the system. The results of this study are expected to provide an overview of the efficiency level of infiltration wells in reducing rainwater runoff on road shoulders and to determine their feasibility as an environmentally sustainable drainage management alternative. The implementation of infiltration wells is expected to increase rainwater infiltration, reduce the potential for waterlogging, and support a more effective and sustainable road drainage system.
Pengaruh Substitusi Cangkang Kemiri Sebagai Pengganti Sebagian Agregat Kasar terhadap Kuat Tekan Beton dengan Perendaman Air Normal dan Air Laut Nur Aqilah Rasyid; Rahmawati Rahmawati; Muh. Jabir M; Imam Fadly; Adnan Adnan
Globe: Publikasi Ilmu Teknik, Teknologi Kebumian, Ilmu Perkapalan Vol. 4 No. 3 (2026): Agustus : Publikasi Ilmu Teknik, Teknologi Kebumian, Ilmu Perkapalan
Publisher : Asosiasi Riset Ilmu Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/globe.v4i3.1644

Abstract

Control-gate operation affects discharge and water-conveyance performance in secondary irrigation canals. This study evaluates the hydraulic performance of the Boki 2-Boki 3 Secondary Canal in Pinrang Regency under five gate-opening levels and identifies a relative optimum opening based on discharge capacity, conveyance efficiency, and water loss. A quantitative field-survey approach was applied at six observation stations (STA 0+000, 0+200, 0+700, 1+200, 1+460, and 1+468) using gate openings of 15, 30, 45, 65, and 85 cm. Surface-flow velocity was measured using the float method and calculated from V=L/t; the measured surface velocity was used directly without a correction factor to determine discharge from Q=A×V. Conveyance efficiency and water loss were evaluated from upstream and downstream discharge. The results show that larger gate openings increased flow area, velocity, and discharge, but were accompanied by greater water loss and lower total conveyance efficiency. The 15 cm opening produced the highest efficiency of 85.89% with a water loss of 0.0316 m³/s, whereas the 85 cm opening produced the largest upstream discharge of 1.4638 m³/s but reduced efficiency to 71.97% with a water loss of 0.4103 m³/s. The 45 cm opening was identified as the relative optimum among the tested conditions, providing an upstream discharge of 0.5618 m³/s, an efficiency of 82.79%, and a water loss of 0.0967 m³/s (17.21%).
Co-Authors A. Bustan Didi Ahmad Alfanzuhri Hania Noorunnissa Imam Fadly Imam Imam Nur Aqilah Rasyid Rahmawati Rahmawati