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All Journal Teknisia Wahana Teknik Sipil: Jurnal Pengembangan Teknik Sipil AGREGAT Prosiding SNFA (Seminar Nasional Fisika dan Aplikasinya) Jurnal Teslink : Teknik Sipil dan Lingkungan Journal of Student Research Ocean Engineering: Jurnal Ilmu Teknik dan Teknologi Maritim Jurnal Sains Student Research Globe: Publikasi Ilmu Teknik, Teknologi Kebumian, Ilmu Perkapalan MERDEKA: Jurnal Ilmiah Multidisiplin Jurnal Ilmiah Nusantara
Fitri Nugraheni
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Humanities Astronomy Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Mechanical Engineering Physics Public Health Social Sciences Transportation Other

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Journal : Teknisia

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Development of work safety procedures for PCI Girder installation using interactive analysis models Ahmad, Chairul; Fitri Nugraheni; Faisol
Teknisia Vol 29 No 1 (2024): Teknisia
Publisher : Jurusan Teknik Sipil, Fakultas Teknik Sipil dan Perencanaan, Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/teknisia.vol29.iss1.art3

Abstract

As part of the government's infrastructure acceleration initiative, toll road construction has become a key focus to enhance regional development and connectivity. However, such projects, particularly those involving the installation of precast concrete girders, carry significant risks of workplace accidents. Between 2017 and 2021, six accidents related to girder erection occurred during toll road construction projects. This study aims to develop work safety procedures for the installation of Type I precast concrete girders in the Bakauheni–Sidomulyo toll road project. The proposed safety procedures, presented as a flow chart, are based on national and international safety standards, providing a clear and sequential overview of the process to ensure better understanding and risk mitigation. The study uses the Interactive Analysis Model for data analysis, encompassing Data Collection, Data Reduction, Data Presentation, and Conclusion Drawing, where data collection and analysis are conducted in an iterative and simultaneous manner. The results, validated by site engineers and safety officers both within and outside the project, identified 62 potential risks stemming from unsafe conditions and provided 85 safety recommendations. These findings offer practical guidance for contractors to minimize the risk of accidents during the PCI girder erection process.
Experimental study on the utilization of raw rice husks as a partial replacement of sand in the production of paver blocks Hakim Muganga; Setya Winarno; Fitri Nugraheni
Teknisia Vol 29 No 2 (2024): Teknisia
Publisher : Jurusan Teknik Sipil, Fakultas Teknik Sipil dan Perencanaan, Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/teknisia.vol29.iss2.art6

Abstract

This study explores the potential use of raw rice husks as a partial substitute for sand in the production of paver blocks, addressing the increasing demand for concrete and the overuse of natural resources like aggregates. Rice husks, an abundant waste material in Indonesia, were incorporated into paver blocks made from Portland cement, sand, and raw rice husks. The initial mix ratio was 1 part cement to 8 parts sand, with subsequent mixes gradually replacing sand with rice husks in proportions ranging from 0.5 to 2 parts. The paver blocks were mixed, molded, and compacted, and their properties were tested for compressive strength, water absorption, skid resistance, and abrasion resistance. Five different mix variations were tested, and the production costs were analyzed. The findings revealed that increasing the rice husk content reduced compressive strength but improved water absorption, skid resistance, and abrasion resistance. Additionally, higher rice husk content resulted in lower production costs. The optimal mix, consisting of 1 part cement, 7.5 parts sand, and 0.5 parts rice husks, met all Indonesian standards and demonstrated the best performance. Further research is recommended to assess freeze-thaw resistance and enhance the cost-effectiveness and quality of paver production.
Co-Authors Achmad Djunaedi Ahmad, Chairul Albani Musyafa Albani Musyafa' Ali Masrodin Bagos Armansyah Bagos, Bagos Armansyah Dyah Aulya Ayuning Sukma Elok Sudibyo Faisol Firdamarsha Benadikta Firmansyah, Mochamad Fitri Anisah Gayuh Adi Susetyo Hakim Muganga Hari Purnomo Ida Ayu Putu Sri Widnyani Koko Heru Satmoko M. Agung Wibowo Machfudiyanto, Rossy Armyn Magfira Lestaluhu Nur Ashmi Hafian Rizkianto, Handi Septianugraha, Agastya Fauzan Setya Winarno Sri Amini Yuni Astuti Taufik Dwi Laksono, Taufik Dwi Taufiq Arya Putra N Wahid Agung Widayati Rahayuningsih