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All Journal Borneo Engineering: Jurnal Teknik Sipil RADIAL: JuRnal PerADaban SaIns RekAyasan dan TeknoLogi Jurnal Konstruksi Paulus Civil Engineering Journal Jurnal Surya Teknika
Misel Boro Allo
Universitas Tadulako
Civil Engineering, Building, Construction & Architecture Computer Science & IT Transportation

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Pemanfaatan Agregat Sungai To Puang Kabupaten Tana Toraja Sebagai Bahan Campuran Beton Misel Boro Allo; Herman Parung; Junus Mara
Paulus Civil Engineering Journal Vol 3 No 4 (2021): Volume 3 No.4 Desember 2021
Publisher : Program Studi Teknik Sipil UKI Paulus-Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (541.374 KB) | DOI: 10.52722/pcej.v3i4.337

Abstract

Entering the New Normal 2021 era due to the Covid-19 pandemic, all industries began to develop again, especially infrastructure development projects. Everyone is competing to take the initiative to create quality and efficient concrete by using the materials around it. This research focuses on the utilization of the aggregate of the To Puang River, Tana Toraja Regency as a concrete mix stacking material, to determine the value of compressive strength, split tensile strength value, flexural strength value, and elastic modulus value. The mix design of this study used the SNI 7656:2012 method. In this study, the planned quality target was f'c = 28 MPa with a water-cement factor (fas) of 0.44. The results of this study indicate that the average compressive strength is 30.290 MPa, the average split tensile strength is 2.902 MPa, the average flexural strength is 3.376 MPa, and the modulus of elasticity is 20820.747 MPa.
Pemanfaatan Agregat Sungai To Puang Kabupaten Tana Toraja Sebagai Bahan Campuran Beton Allo, Misel Boro; Parung, Herman; Mara, Junus
Paulus Civil Engineering Journal Vol. 3 No. 4 (2021): PCEJ, Vol.3, No.4, December 2021
Publisher : Universitas Kristen Indonesia Paulus

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52722/gt0tfy95

Abstract

Memasuki era New Normal 2021 akibat pandemi Covid-19 membuat semua industri mulai berkembang lagi, khususnya proyek pembangunan infrastruktur. Semua orang berlomba untuk berinisiatif menciptakan beton yang bermutu dan efisien dengan menggunakan material yang ada di sekitarnya. Penelitian ini terfokus pada pemanfaatan agregat Sungai to Puang Kabupaten Tana Toraja sebagai bahan susun campuran beton, untuk mengetahui nilai kuat tekan, nilai kuat tarik belah, nilai kuat lentur, dan nilai modulus elastisitas. Mix design penelitian ini menggunakan metode SNI 7656: 2012. Pada penelitian ini target mutu rencana f ’c = 28 MPa dengan nilai faktor air semen (fas) 0,44. Hasil penelitian ini menunjukkan nilai kuat tekan rata-rata sebesar 30,290 MPa, kuat tarik belah ratarata sebesar 2,902 MPa, kuat lentur rata-rata sebesar 3,376 MPa, dan nilai modulus elastisitas sebesar 20820,747 MPa. 
ANALISIS STABILITAS LERENG MENGGUNAKAN DINDING PENAHAN TANAH DENGAN PERKUATAN BOR PILE (STUDI KASUS PADA RUAS JALAN PALELEH – LOKODOKA KM. 685+100) Wahidin, Suci Amalia Namira; Arief, Dede Irham; Ramadhan, Bayu Rahmat; Allo, Misel Boro
Surya Teknika Vol. 2 No. 1 (2025): Jurnal Surya Teknika Volume 2 Nomor 1 2025
Publisher : Fakultas Teknik Universitas Muhammadiyah Palu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31934/jst.v2i1.7642

Abstract

Tanah longsor merupakan salah satu ancaman utama terhadap infrastruktur jalan di wilayah Sulawesi Tengah yang memiliki kondisi topografi kompleks. Penelitian ini bertujuan untuk menganalisis stabilitas lereng pada ruas jalan Paleleh–Lokodoka KM 685+100 dengan pendekatan penggunaan dinding penahan tanah tipe kantilever yang diperkuat dengan bored pile. Metode analisis yang digunakan adalah Finite Element Method (FEM) menggunakan pemodelan numerik 2D, dengan mempertimbangkan beban lalu lintas dan beban gempa bumi. Hasil analisis menunjukkan bahwa desain dinding penahan tanah dengan perkuatan bored pile menghasilkan nilai faktor keamanan (SF) sebesar 1,561 pada kondisi layan dan 1,120 pada kondisi gempa, yang telah memenuhi ketentuan dalam SNI 8460-2017. Disimpulkan bahwa penggunaan bored pilesebagai perkuatan memberikan kontribusi signifikan terhadap kestabilan lereng dan dapat menjadi solusi teknis yang efektif untuk kawasan rawan longsor.
Evaluasi Perilaku Mekanik Mortar Berkelanjutan menggunakan Butiran Plastic PET (Polyethylene Terephthalate) sebagai Substitusi Agregat Halus Allo, Misel Boro; Ramadhan, Bayu Rahmat; Wahidin, Suci Amalia Namira; Verucha, Novacharisma V.; Akifa, Sri Nur; Said, Sugira; Seril, Boroallo
Paulus Civil Engineering Journal Vol. 7 No. 2 (2025): Paulus Civil Engineering Journal V7N2 2025
Publisher : Universitas Kristen Indonesia Paulus

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52722/qk4qny98

Abstract

Transformasi penggunaan material tidak terbarukan menjadi terbarukan menjadi material inovatif yang berkelanjutan. Limbah plastik tahunan meningkat dan memperparah kerusakan lingkungan. Peningkatan limbah plastic yang sulit terurai, dan menimbulkan gas beracun saat di bakar dapat merusak alam. Memanfaatkan sampah ini dalam produksi beton dapat membantu melestarikan sumber daya bangunan. Penelitian ini untuk menguji perilaku mekanik mortar dengan pengantian agregat menggunakan limbah plastic PET (butiran) dengan variasi 0%, 3% dan 5% dari berat pasir. Pengujian dilakukan pada umur 7 dan 28 hari. Penelitian ini mengevaluasi flow mortar, density, dan kuat tekan. Penggantian agregat halus menggunakan agregat plastik PET sampai 5% dalam campuran mortar menunjukkan dampak positif pada nilai kuat tekan mortar dan material dapat menyerap energi yang baik. Penelitian ini menunjukkan peningkatan kekuatan tekan mortar hingga 1.16 kali dibandingkan campuran kontrol saat menggunakan 5% agregat limbah PET sebagai agregat limbah plastik PET dalam campuran mortar sehingga mendukung pengembangan bahan konstruksi yang berkelanjutan
Analisis Upaya Mitigasi Dampak Erosi Aliran Sungai terhadap Struktur Pilar Jembatan karuru, rezky susmono; Allo, Misel Boro; Verucha, Novacharisma Vindiantri
Paulus Civil Engineering Journal Vol. 7 No. 3 (2025): Paulus Civil Engineering Journal V7N3 2025
Publisher : Universitas Kristen Indonesia Paulus

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52722/ct1yj152

Abstract

Analisis hidrolika terhadap Sungai Basi 6 menunjukkan bahwa muka air banjir pada debit rencana Q100 tahun hampir menyentuh lantai jembatan eksisting. Pada tahun 2025, kejadian banjir besar mengakibatkan tinggi muka air mencapai elevasi dasar (bottom) jembatan, menimbulkan risiko serius terhadap struktur jembatan yang telah berusia puluhan tahun. Jembatan ini berada tepat pada tikungan tajam alur sungai, sehingga sisi luar belokan menerima tekanan aliran terbesar. Hal tersebut menyebabkan aliran menghantam langsung abutment dan memicu terjadinya gerusan (scouring) yang berpotensi melemahkan fondasi. Kecepatan aliran pada kondisi eksisting tercatat mencapai 4,86 m/s, yang mempercepat proses erosi di sekitar struktur. Untuk mengatasi permasalahan tersebut, dilakukan upaya normalisasi alur sungai dengan mengubah geometri menjadi lebih lurus, serta membangun tanggul sepanjang 100 meter di sisi hulu dan hilir jembatan. Langkah ini bertujuan menurunkan kecepatan aliran dan mengurangi potensi gerusan. Selain itu, direncanakan pembangunan bangunan pereduksi kecepatan aliran, terutama di area tikungan. Hasil simulasi menunjukkan bahwa kecepatan aliran dapat ditekan menjadi 2,03 m/s pada kondisi rencana. Perubahan ini menunjukkan penurunan energi aliran secara signifikan dan peningkatan stabilitas di sekitar abutment. Berdasarkan kajian tersebut, direkomendasikan bahwa kombinasi penataan ulang alur sungai, pemasangan bronjong, serta peninggian elevasi jembatan minimal 1,5 meter dari muka air banjir merupakan solusi yang efektif dalam penanganan gerusan dan peningkatan keselamatan jembatan.
STUDI EVALUASI KEKUATAN STRUKTUR ATAP BETON DAK GEDUNG DPRD KABUPATEN POHUWATO Saputra, Wawan Edi; Said, Sugira; Alia, Muh. Robin; Allo, Misel Boro
RADIAL : Jurnal Peradaban Sains, Rekayasa dan Teknologi Vol. 12 No. 2 (2024): RADIAL: JuRnal PerADaban SaIns RekAyasan dan TeknoLogi
Publisher : Universitas Bina Taruna Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37971/radial.v12i2.491

Abstract

This research was conducted to determine the damage or leakage of the concrete roof structure in the Pohuwato Regency DPRD Building based on the priority scale and investigation method. The location of the Pohuwato Regency People's Representative Council located in the Marisa Office Plan Block, Marisa District, Pohuwato Regency was used as the object of study in this study. This research survey was conducted in June. Several methods used were interviews with the DPRD Building Head Manager and interviews with the Head of the PU Service. This research was conducted in the Pohuwato Regency DPRD Building, with an emphasis on the concrete roof roof structure. The building is intended as one of the legislative institutions within the Pohuwato Regency Government. Based on the results and analysis, it can be concluded that the level of damage based on the weighting of the concrete roof roof of the Pohuwato Regency DPRD Building is 83%. This conclusion is based on the results of the analysis carried out by the author using the SAW method and the weighting parameters of the results, which indicate that the data can be used as a reference in analyzing or repairing the concrete roof roof of the Building.
Effect of Multi-Variable Mix Composition on the Setting Time and Flow Properties of Fly Ash-GGBFS Geopolymer Mortar Ramadhan, Bayu Rahmat; Adam, Andi Arham; Akifa, Sri Nur; Wahidin, Suci Amalia Namira; Verucha, Novacharisma Vindiantri; Allo, Misel Borro
Borneo Engineering: Jurnal Teknik Sipil Volume 9 Nomor 2 Tahun 2025
Publisher : Jurusan Teknik Sipil, Fakultas Teknik, Universitas Borneo Tarakan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35334/be.v9i2.310

Abstract

The development of eco-friendly construction materials increasingly emphasizes the utilization of industrial waste, with fly ash being a prominent alternative binder to Portland cement. However, Type F fly ash exhibits limitations due to its inherently low calcium (CaO) content, which results in slow geopolymerization reactivity and typically necessitates high-temperature curing to achieve optimal early strength. This research aims to optimize the utilization of 100% fly ash as a binder in geopolymer mortar by incorporating Ground Granulated Blast Furnace Slag (GGBFS). GGBFS serves as a source of reactive calcium, specifically to accelerate C-A-S-H gel formation. The alkaline activator used comprises NaOH and Na₂SiO₃ solutions, varied at specific ratios. The experimental program investigates the influence of three key parameters: GGBFS content (10%, 20%, and 30% by fly ash weight), activator/binder ratio (30%, 35%, and 40%), and aggregate/binder ratio (2.25, 2.5, and 2.75). The primary focus is to evaluate their effect on the fresh properties of geopolymer mortar, particularly flowability and setting time, under ambient curing conditions (without heat treatment). The findings of this study are expected to demonstrate that GGBFS addition significantly enhances early reactivity and facilitates the development of geopolymer mortar suitable for ambient temperature applications. This research is anticipated to contribute to the advancement of sustainable construction materials through the optimal utilization of industrial waste, especially for applications where high-temperature curing is impractical.
Pengaruh Komposisi Campuran Multi-Variabel terhadap Kuat Tekan Mortar Geopolimer Fly Ash-GGBFS Novacharisma Vindiantri Verucha; Bayu Rahmat Ramadhan; Rezky Susmono Karuru; Sri Nur Akifa; Misel Boro Allo
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.24-1.3366

Abstract

Growing interest in sustainable construction materials has driven the utilization of industrial by-products, such as fly ash, as alternatives to Portland cement. However, Type F fly ash typically exhibits low calcium (CaO) content, resulting in slow geopolymerization and limited strength development under ambient curing conditions. This study investigates the combined influence of Ground Granulated Blast Furnace Slag (GGBFS) incorporation and multi-variable mix composition on the compressive strength development of fly ash-based geopolymer mortar.An experimental program based on a Taguchi L9 design was employed to systematically evaluate the effects of GGBFS content (0%, 10%, 20%, and 30%), activator-to-binder ratios (0.30, 0.35, and 0.40), and aggregate-to-binder ratios (2.25, 2.50, and 2.75). Compressive strength was measured at 7, 14, and 28 days under ambient curing conditions and compared with conventional Portland cement mortar. The results indicate that GGBFS plays a dominant role in enhancing strength development by promoting the formation of hybrid C–A–S–H and N–A–S–H gels, which densify the microstructure and accelerate reaction kinetics.The fly ash-only mixture exhibited very low strength (0.82 MPa at 28 days), while mixtures incorporating GGBFS showed significant improvement. The optimal composition (D40G30A2.5) achieved a compressive strength of 28.81 MPa at 28 days, exceeding the Portland cement control (16.75 MPa). Statistical analysis further confirms that GGBFS content is the most influential parameter governing strength development, followed by activator dosage, while aggregate proportion has a relatively minor effect. This study contributes a systematic multi-parameter optimization framework for ambient-cured fly ash–GGBFS geopolymer mortar, demonstrating that 20–30% GGBFS incorporation enables practical strength development without the need for elevated temperature curing, thereby enhancing its applicability for real-world construction.
Co-Authors Alia, Muh. Robin Andi Arham Adam Arief, Dede Irham Bayu Rahmat Ramadhan Bayu Rahmat Ramadhan Junus Mara Mara, Junus Parung, Herman Rezky Susmono Karuru Said, Sugira Saputra, Wawan Edi Seril, Boroallo Sri Nur Akifa Verucha, Novacharisma V. Verucha, Novacharisma Vindiantri Wahidin, Suci Amalia Namira