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All Journal JURNAL PROMOSI KESEHATAN INDONESIA Jurnal Ilmiah Rekayasa Sipil Jurnal Pengabdian kepada Masyarakat Nusantara Jurnal Talenta Sipil Jurnal Kesehatan Pertiwi Journal of Civil Engineering and Vocational Education
Sigit Winarto, Sigit
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Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Materials Science & Nanotechnology Nursing Public Health Social Sciences Transportation

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Journal : Jurnal Ilmiah Rekayasa Sipil

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Peningkatan Workability Pasta Beton Modifikasi Dengan Pemanfaatan Abu Sekam Padi Menggunakan Superplasticizer Nugraha, Rama Putra; Mahardana, Zendy Bima; Winarto, Sigit
Jurnal Ilmiah Rekayasa Sipil Vol 21 No 1 (2024): April 2024
Publisher : Pusat Penelitian dan Pengembangan Masyarakat (P3M), Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/jirs.v21i1.1309

Abstract

Infrastructure development in Indonesia is the main focus of the government, especially in the construction sector with toll road projects, airports, high-speed rail lines, and smart cities in the new capital city. Concrete is becoming the main material in infrastructure because of its high compressive strength and relatively low cost. Aggregates, especially natural and artificial, play a key role in concrete structures. The growth in demand for natural aggregates has an impact on environmental damage due to mining. Innovations using Rice Husk Ash instead of natural aggregates emerged as an environmentally friendly solution. However, it is necessary to optimize the mix design and handle workability reduction with superplasticizers. The percentage of superplasticizers used is 0%, 0.52%, 0.54%, 0.56%, 0.58% of the total use of cement. In concrete workability tests, such as Flowability, Passingability, and Viscosity, it was found that a 0.54% SCCRHA mixture showed optimal performance. The Flowability test showed a Slump Flow runoff value of 77.5 cm (SF3 category), while the J-Ring test showed a runoff of 75 cm with 2.5 cm blocking (No Blocking). The Viscositytest showed T-500 and V-Funnel times of 1.8 seconds and 2.18 seconds, respectively, with VF1 and VS1 (good filling) classifications. The results showed that this mixture achieved the most effective design with a compressive strength of 25.17 MPa, showing an increase of 13% compared to the plan mixture
Co-Authors Agustria, Rory Bina Kurniawan Eko Siswanto Erlisya Puspandhani, Mitha Fatardhoo, Abroor Kissraya Fathur Rachman, Rizaldy Hanifa Maher Denny, Hanifa Maher IMAM MUSTOFA Indra Pradigta, Mochammad Danara Komari, Ana Muhammad Azhari, Faiz Nugraha, Rama Putra Pratama, Ziko Rosidah Rosidah Sony Susanto Sony Susanto