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Bambang Sabariman
Universitas Negeri Surabaya
Civil Engineering, Building, Construction & Architecture Computer Science & IT Education Electrical & Electronics Engineering Law, Crime, Criminology & Criminal Justice Social Sciences

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Journal : INTER TECH

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Inovasi Untuk Peningkatan Kekuatan Dan Kekakuan Balok Lentur Dengan Isian Pasangan Bata Merah Yang Dibebani Beban Vertikal Statik Monotonik Sabariman, Bambang; Tavio
INTER TECH Vol 2 No 1 (2024): INTER TECH
Publisher : Fakultas Teknik Universitas Bhayangkara Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54732/i.v2i1.1142

Abstract

Indonesia termasuk daerah rawan bencana gempa bumi. Bencana ini bukan hanya mengancam infrastuktur tetapi juga mengakibatkan timbulnya korban jiwa manusia, kerusakan lingkungan, kerugian harta benda, dan dampak psikologis. Untuk itu, rancang bangun elemen struktur sangat diperlukan, seperti rancang bangun balok beton bertulang. Studi dilakukan terhadap rancang bangun isian pasangan bata merah (IPBM) yang dimasukkan di tengah penampang balok selebar penuh arah melintang ke arah memanjang balok. IPBM ini sampai saat ini masih dianggap sebagai bagian dari non-engineered building. Hasil studi pada penelitian ini justru menunjukkan hasil bahwa IPBM memberi kontribusi pada kekuatan dan kekakuan balok IPBM. Kekuatannya meningkat 4,10% sedang kekakuannya meningkat sebesar 15,64%, sehingga selayaknya jika IPBM bukan hanya dianggap sebagai bagian dari non-engineered building namun bisa berkontribusi secara struktural.
Kuat Tekan Beton Dengan Dan Tanpa Penambahan Silica Fume Dalam Rendaman Air Laut Ghozi, Mohammad; Budiati, Anik; Priambada, Agoes Wahyu; Sabariman, Bambang; Suryadi, Akhmad
INTER TECH Vol 3 No 1 (2025): INTER TECH
Publisher : Fakultas Teknik Universitas Bhayangkara Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54732/i.v3i1.1246

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Marine concrete is used for structures in marine environments that are susceptible to chemical attacks such as sulfates and chlorides. This study aims to analyze the effect of adding 7% silica fume on the compressive strength of marine concrete soaked in seawater. The experimental research method was carried out by making 12 concrete cylinder samples (diameter 15 cm × height 30 cm), consisting of two variations: concrete without silica fume and concrete with 7% silica fume. Compressive strength testing refers to SNI 03-1974-1990 and ASTM C39, with seawater immersion for 50 days and testing at the ages of 14, 28 and 50 days. The results showed that concrete with 7% silica fume achieved an average compressive strength of 39.90 MPa at the age of 28 days, higher than concrete without silica fume (37.64 MPa). This increase is due to the pozzolanic reaction of silica fume which fills the pores of the concrete and forms calcium silicate hydrate (CSH) compounds, increasing the density of the concrete matrix. The slump value of both concrete variations is stable at 12 cm, meeting the planned workability criteria. This study states that the addition of 7% silica fume is effective in increasing the compressive strength and resistance of marine concrete to the marine environment. Recommendations include the use of silica fume for marine structures, strict supervision in mixing materials, and optimization of mixing time to prevent too fast setting time. This study contributes to the development of environmentally friendly concrete with high durability in coastal areas.
Co-Authors Achmad Noerkhaerin Putra Anik Budiati, Anik Arie Wardhono Dlauissama, Dlauissama Ghozi, Mohammad HAMZAH, MOHAMMAT HS, Mas Suryanto HS HUDIPRASETIA GHOZALI, ALIF IMAM SYAFII, MUHAMMAD INGGIL SUPRIYANTO, NISA JANNAH, DURRATUL KRISNA DWI HANDAYANI Lilis Sulandari Lynda Refnitasari Muhammad Imaduddin Niken Purwidiani3) Nurhayati Aritonang, Nurhayati Priambada, Agoes Wahyu Priyosulistyo Priyosulistyo Putra, Alwan Gangsar Brilian PUTRI ROHMANIYAH, SELVIA Rachmat Purwono Rahmadyanti, Erina RISDIANTO, YOGIE SETIYABUDI, HENDRA Suryadi, Akhmad Sutikno Sutikno Talitha Rachma, Siti Tavio Wulandari, Meity