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All Journal Urban and Regional Studies Journal IPTEK: Jurnal Hasil Pengabdian kepada Masyarakat Jurnal Penelitian Teknik Sipil Konsolidasi
Eka Yuniarto
Program Studi Teknik Sipil Fakultas Teknik Universitas Bosowa
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Hubungan Beban Dan Lendutan Terhadap Balok Beton Bertulang Berongga Razak, Rismawati; Sariman, Syahrul; Yuniarto, Eka
Jurnal Penelitian Teknik Sipil Konsolidasi Vol. 3 No. 3 (2025): Jurnal Penelitian Teknik Sipil Konsolidasi, September 2025
Publisher : Program Studi Teknik Sipil Universitas Bosowa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56326/jptsk.v3i3.3297

Abstract

When a beam structure is loaded, it is held in compression by concrete while the tension area is fully carried by reinforcing steel, so that the concrete cross-section in the tension section below the neutral line is not considered to be carrying the load. So in the concrete tension area filled with plastic bottles, in order to obtain a lighter structure, reduce the volume of concrete/cement and reduce environmental pollution. In this study used reinforced concrete beams with dimensions of 175 x 350 x 3200 mm. The test object consists of 3 (three) namely 1 normal beam and 2 hollow beams with the same length, namely 2640 mm and differentiated according to height, namely 120 mm (2 layers of bottles)-BR2 and 180 mm (3 layers of bottles)-BR3. The test results show that the load-deflection relationship is relatively the same. This shows that the voids in the pure bending moment area provide relatively the same stiffness as the normal beam stiffness. The crack patterns for all test results show that normal and hollow beams experience flexural failure.
Pengaruh Zat Adiktif Dan Batu Bata Merah Sebagai Substitusi Pasir Terhadap Kuat Lentur Dan Tekan Beton Dengan Perendaman Air Laut Dan Air Tawar Mappa, Muh Hijrawansa; Setiawan, Arman; Yuniarto, Eka
Jurnal Penelitian Teknik Sipil Konsolidasi Vol. 3 No. 3 (2025): Jurnal Penelitian Teknik Sipil Konsolidasi, September 2025
Publisher : Program Studi Teknik Sipil Universitas Bosowa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56326/jptsk.v3i3.3308

Abstract

Concrete is a material that is easy to shape and mold according to the needs of building concrete structures and is able to withstand compressive loads very well, has a relatively long life, is able to withstand high temperatures, and low maintenance costs. From the results of the design of a normal concrete mixture f'c 20 Mpa obtained the composition of cement mix: 379.63 kg/m3, crushed stone 1-2: 998.70 kg/m3, sand: 671.48 kg/m3, and water: 225.18 kg/m3. The compressive strength of normal concrete is higher than the compressive strength of 9% red brick variation concrete and 0% Silicafume by 21.2 Mpa. The more use of red bricks in the concrete mixture, the lower the compressive strength. This suggests that as silicafume variations increase with seawater immersion and freshwater the resulting compressive strength value increases. The compressive strength value with freshwater immersion is higher in seawater. The addition of red bricks to the concrete mixture has increased in bending strength with freshwater soaking compared to seawater soaking and normal concrete. As silicafume variations increase with seawater and freshwater immersion the resulting bending strength value increases as much as in compressive strength.
Pengaruh Fly Ash Tempurung Kelapa Sebagai Bahan Tambah Terhadap Kuat Tekan Dan Kuat Lentur Beton Gunawan, Andi Candra; Setiawan, Arman; Yuniarto, Eka
Jurnal Penelitian Teknik Sipil Konsolidasi Vol. 3 No. 3 (2025): Jurnal Penelitian Teknik Sipil Konsolidasi, September 2025
Publisher : Program Studi Teknik Sipil Universitas Bosowa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56326/jptsk.v3i3.3315

Abstract

The world of construction is currently experiencing very rapid development. This can be seen from various countries that are competing to improve the quality and quantity of their buildings. The purpose of this study was to determine the effect of adding coconut shell fly ash to the concrete mix with variations of 5%, 10%, and 15% by weight of cement on the compressive strength and flexural strength of concrete. There were 38 samples made, including 20 samples of normal concrete and 18 samples of variation concrete. Concrete samples were soaked for 28 days prior to testing the compressive strength and flexural strength of the concrete. The results of the compressive strength test with the addition of 5% fly ash were (26.11 Mpa), 10% (27.34 Mpa), and 15% (29.23 Mpa) while for flexural strength with the addition of 5% fly ash (3.73 Mpa), 10% (3.78 Mpa), and 15% (3.91 Mpa). The results of this test indicate that the variable concrete has a higher compressive strength and flexural strength than normal concrete. the use of coconut shell fly ash in the concrete mixture, greatly affects the compressive strength and flexural strength of concrete compared to normal concrete.
Co-Authors Abduh, M. Natsir Abeng, Christie Bongga Akrim, Djusdil Andi Rumpang Yusuf Arman Setiawan Ashar, Ahmad Aswanti, Rina Cangara, Iin Fitrianty Suaib Cangara, Satriawati Chau, Jaycin Agnes Elisa Gunawan, Andi Candra Haris, Zainal Abidin Irfan, Achmad Kalua, Gustianus Lebang, Fauzy Mangasik, Setiawan Anugerah Mappa, Muh Hijrawansa Marcelline, Aldo Mayumi, Emilia Muhammad Naufal, Muhammad Nur, Muhammad Alfian Palmabas, Suardi Paraktuk, Azer Kalak Razak, Rismawati Ridwan, Ridwan Rizaldo Bagus Dinata Sammin, Widianto Sariman, Syahrul Sikanna, Ferdi Syahriman, Syahrul Wicaksono, Muh. Ramdhan Ainun Yusuf, A. Rumpang