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All Journal Jurnal Ilmiah Rekayasa Sipil Jurnal Konstruksi dan Infrastruktur : Teknik Sipil dan Perencanaan
Alvanda, Muhammad Reyhan
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Civil Engineering, Building, Construction & Architecture Transportation

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Studi Eksperimental Karakteristik Beton Mutu Tinggi dengan Memanfaatkan Limbah Fly Ash dan Coco Fiber Alvanda, Muhammad Reyhan; Suhelmidawati, Etri; Tiara, Tiara; Putri, Casy Almia; Akbar, Hikmal; Syauqi, Hafizhan; Satwarnirat, Satwarnirat
Jurnal Ilmiah Rekayasa Sipil Vol 21 No 2 (2024): Oktober 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.v21i2.1511

Abstract

The issue of environmental friendliness has become very popular recently. Various industrial sectors must pay attention to environmental factors as a global sustainability goal. In the construction industry sector, concrete is a much-needed material in making building structures. Concrete becomes environmentally friendly by utilizing waste as a substitute for some of the ingredients. This research uses fly ash and coconut fiber. This study aims to determine the effect of renewable innovation in the addition of fly ash and coco fiber waste on the value of compressive strength and flexural strength of concrete and to determine the composition of the most optimum percentage of waste addition, as well as the resulting crack pattern. This research uses the international standard ACI 211.4R-93, which is an experiment with the addition of 15% fly ash and variations in the addition of coconut fiber 0.5%, 1%, 1.5%, and 2%. The concrete quality planning in this study is 40 MPa with concrete treatment for 28 days and 56 days. This test uses cylindrical test objects (15cm x 30cm) with a total of 30 samples for compressive strength testing and beams (60cm x 15cm x 15cm) with a total of 30 samples for flexural strength testing. The results obtained in this study are the optimum compressive strength found in the variation of adding 1.5% fiber and 15% fly ash at 56 days of concrete age of 33.12 MPa. The highest concrete flexural strength value is found in the 2% fiber addition variation.
Perencanaan Rencana Anggaran Biaya RumahTinggal dengan Pendekatan Inovatif di Kota Kendari Nesya, Badzlina Harvy; Alvanda, Muhammad Reyhan; Habibulloh, Abdi; Nugroho, Shabrina Salsabila
Jurnal Ilmiah Rekayasa Sipil Vol 22 No 1 (2025): April 2025
Publisher : Pusat Penelitian dan Pengembangan Masyarakat (P3M), Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/jirs.v22i1.1749

Abstract

Kendari is the capital city of Southeast Sulawesi Province which administratively has 11 sub-districts and 65 villages. In 2023, the population of Kendari City reached 351,051 people which is increasing from year to year. This increase in population causes the need for houses as a basic need for housing for the community to also continue to increase from year to year. The house as a residence is certainly the key to the comfort and safety of its inhabitants. This comfort and security cannot be separated from efficient and effective house construction planning so that these goals can be achieved properly. The purpose of this research is to obtain detailed specifications of innovative implementation methods and materials that can make the construction of residential houses with a Budget Plan (RAB) that becomes effective and efficient and prioritizes aspects of quality and high quality. The data studied in this research is a residential house with an area of 7m x 9.5m located in Kendari City, Southeast Sulawesi Province. The results obtained are the calculation of the Cost Budget Plan (RAB) of Rp318,419,000 and the innovations applied to achieve the effectiveness and efficiency of residential construction, namely the calculation of the quantity of work items by prioritizing good waste management aspects, the use of high-quality products, casting using mini ready mix concrete with maintained quality, and innovative use of technology such as SketcUp 3D and Microsoft Project for efficient project execution and scheduling methods.
Evaluasi Perbandingan Efisiensi Biaya Terhadap Metode Pelaksanaan Pekerjaan Struktur Rumah Lantai 3 Di Kota Depok Nesya, Badzlina Harvy; Alvanda, Muhammad Reyhan
Jurnal Konstruksi dan Infrastruktur : Teknik Sipil dan Perencanaan Vol 13 No 2 (2025): Jurnal Konstruksi dan Infrastruktur Vol 13 No.2 : Oktober 2025
Publisher : Civil Engineering Department, Faculty of Engineering, Universitas Swadaya Gunung Jati

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33603/jki.v13i2.10686

Abstract

Depok City as a city with significant population growth every year requires vertical housing infrastructure to meet the needs of housing. The construction of a 3-storey house requires a strong structure and is in accordance with user safety rules so that it can support vertical and lateral loads and is efficient in terms of work procedures and cost factors. Therefore, the selection of implementation methods for structural work is a crucial thing that needs to be studied in terms of quality factors and costs that will be incurred. This study provides alternative recommendations for selecting implementation methods for 3-storey house structural work items with an evaluation of the methods implemented and the costs incurred. The implementation methods provided include structural work using instant concrete, mini mix concrete, steel structures, and containers. From the results of the evaluation carried out, in terms of the cost of structural work, the recommended implementation method is to use instant concrete with a total cost of Rp157,254,996.90. This method is recommended because the costs incurred are more economical, there is no need for mobilization of heavy equipment such as cranes and truck mixers, and it does not have the potential to interfere with access for residents around the construction site. The implementation methods that are less recommended are using mini mix concrete with a total cost of Rp150,190,417.15, steel structures with a cost of Rp292,455,790.28, and containers with a cost of Rp76,900,000.00 taking into account access to the project location, mobilization of heavy equipment, and the costs incurred.
Co-Authors Akbar, Hikmal Habibulloh, Abdi Nesya, Badzlina Harvy Nugroho, Shabrina Salsabila Putri, Casy Almia Satwarnirat Satwarnirat Suhelmidawati, Etri Syauqi, Hafizhan Tiara, Tiara