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All Journal Jurnal Teknik RADIAL: JuRnal PerADaban SaIns RekAyasan dan TeknoLogi Jurnal Teknologi Berkelanjutan Composite Journal Jurnal Teknik Sumber Daya Air Proceeding of International Conference on Humanity Education and Society RADIAL: Jurnal Peradaban Sains, Rekayasa dan Teknologi
Aryati Alitu
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Humanities Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mechanical Engineering Social Sciences Transportation Other

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Journal : Composite Journal

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OPTIMASI PELAKSANAAN PENGECORAN ANTARA BETON SITE MIX DAN READY MIX DARI BATCHING PLANT PADA PEKERJAAN PENGENDALIAN BANJIR SUNGAI BOLANGO KOTA GORONTALO M. Nasir, Gustina; Tuloli, M. Yusuf; Alitu, Aryati
Composite Journal Vol. 2 No. 2 (2022): Composite Journal
Publisher : Jurusan Teknik Sipil, Fakultas Teknik, Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/cj.v2i2.53

Abstract

Beton merupakan salah satu item yang sangat penting dalam pembuatan sebuah konstruksi bangunan saat ini. Tak jarang kita jumpai pembangunan misalkan jalan, jembatan ataupun bangunan lainnya yang menggunakan beton dalam pembuatan konstruksinya. Secara umum, terdapat perbedaan proses pembuatan beton site mix dengan beton ready mix. Beton site mix menggunakan tenaga manusia, sedangkan beton ready mix menggunakan tenaga mesin yang dikontrol oleh sistem komputerisasi dan dibuat langsung ditempat produksi yang disebut batching plant. Tujuan dalam penelitian ini adalah untuk menganalisis perbandingan biaya dan waktu dari pengecoran site mix dan ready mix. Metode pengumpulan data yaitu melakukan pengamatan secara langsung di lapangan serta wawancara terhadap pihak terkait. Pengolahan data dalam penelitian ini adalah menganalisis waktu pekerjaan serta menghitung optimasi biaya. Berdasarkan hasil analisis menunjukkan bahwa pengecoran balok tarik pada CCSP (Corrugated Concrete Sheet Pile) menggunakan beton site mix memiliki total biaya Rp. 2.167.427.922 sedangkan biaya menggunakan ready mix sebesar Rp. 1.956.456.000. Waktu pengecoran Site Mix yaitu 117 jam atau 15 hari, sedangkan waktu untuk ready mix 109,09 jam atau 14 hari. Dalam hal pekerjaan pengecoran balok didapatkan selisih biaya sebesar Rp. 210.971.922 dan selisih waktu selama 7,91 jam atau sehari.
ANALISIS KUALITAS AIR TANAH DANGKAL DAN KEBUTUHAN AIR PADA KAWASAN PESISIR LEATO UTARA Ibrahim Ismail, Irana I. Koem; Alitu, Aryati; Mahmud, Marike
Composite Journal Vol. 6 No. 1 (2026): Composite Journal
Publisher : Jurusan Teknik Sipil, Fakultas Teknik, Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/cj.v6i1.171

Abstract

Leato Utara, located in Gorontalo City, Gorontalo Province, is a coastal area known as a tourist destination and residential centre. The increasing population in this area has led to a growing demand for clean water. As a result, most residents rely on shallow aimed to analyse the quality of groundwater in Leato Utara and asses the community’s water demand. The analysis method involved testing physical parameters (TDS, turbidity, temperature, colour, odour, and salinity), chemical parameters (iron, pH, manganese, and hardness), and microbiological parameters (Escherichia coli and Coliform) based on the Ministry of Health Regulation No. 2 of 2023. Water demand was analysed based on population data, including domestik and non-domestik water needs, water losses, and total water demand. The results indicated that shallow groundwater quality in Leato Utara varies across physical, chemical, and microbiological parameters, Physical parameters such as turbidity, temperature, colour, and salinity met the quality standards 100%, but only 33.33% of TDS samples met the standard. Chemical parameters such as pH, manganese, and iron fully met the standards, while only 33.33% of hardness results were within acceptable limits. Microbiological tests revealed that 66.67% of samples exceeded the standard for Coliform and 33.33% for E. Coli, indicating potential bacterial contamination. Water availability was found to be 28.512 liters/day, which is insufficient compared to the community’s total demand of 34.008 liters/day. Therefore, appropriate measures are needed to address this water supply issue.
Co-Authors Apriani Apriani Barry Yusuf Labdul Darwis Hinelo Fatmawati Abdul Razak, Fatma Ibrahim Ismail, Irana I. Koem Labdul, Barry Y. M. Nasir, Gustina Marike Mahmud Moh. Yusuf Tuloli Nento, Ilyas Rivaldi U. Nggule, Hanafi Razak Rachman, Azis Rawiyah Husnan Tambipi, Nur Atika Tintia, Linda Utiarahman, Dinar F. Utiarahman, Dinar Fauziah