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All Journal Journal TEPAT: Teknologi Terapan untuk Pengabdian Masyarakat Jurnal Puan Indonesia Tedc
Raafidiani, Reni
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Mitigasi Bencana Gempa Bumi Akibat Sesar Lembang di SMAN I Lembang, Jawa Barat Sihombing, Atmy Verani R; Febriansya, Aditia; Somantri, Andri Krisnandi; lndah, Risma Nur; Yuswandono, Mulyadi; Mase, Lindung Zalbuin; Raafidiani, Reni; Patimah, Siti
JURNAL TEPAT : Teknologi Terapan untuk Pengabdian Masyarakat Vol 7 No 1 (2024): Community Development
Publisher : Faculty of Engineering UNHAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25042/jurnal_tepat.v7i1.456

Abstract

Sesar Lembang merupakan sesar aktif yang terletak di bawah tanah di Jawa Barat, Indonesia. Sesar ini memiliki panjang sekitar 30 km dan bergerak dengan kecepatan sekitar 2,5 cm per tahun. Sesar Lembang terletak di bawah daerah Lembang, Kabupaten Bandung Barat, dan berpotensi menyebabkan gempa bumi dengan magnitudo yang signifikan, mencapai 7,0 SR. Salah satu wilayah yang akan berdampak cukup parah akibat sesar lembang ini adalah SMA Negeri 1 Lembang. Tujuan dari pengabdian masyarakat ini adalah untuk memberikan edukasi terkait gempa bumi pada sivitas sekolah SMAN 1 Lembang serta penerapan teknologi tepat guna sebagai solusi mitigasi bencana gempa, terutama gempa bumi akibat Sesar Lembang. Hasil pelaksanaan pengabdian masyarakat ini adalah peta jalur evakuasi, rambu dan marka jalur evakuasi, pelatihan dan sosialisasi strategi menghadapi bencana untuk siswa, guru, serta sivitas sekolah lainnya. Peningkatan pengetahuan dan kesadaran sivitas sekolah meningkat sebanyak 50% yang terlihat dari hasil kuesioner pengetahuan mengenai kebencanaan khususnya akibat Sesar Lembang.
Pelatihan Desain Web untuk Menambah Pengetahuan Siswa Madrasah Tsanawiyah Al-Mukhlis Desa Jatisari Kabupaten Bandung Ernawati, Tati; Ekawati, Nia; Iskandar, Rachmat; Tresnawati, Shandy; Raafidiani, Reni; Ihsan Kamil, Ali
PUAN INDONESIA Vol. 6 No. 2 (2025): Jurnal Puan Indonesia Vol 6 No 2 Januari 2025
Publisher : ASOSIASI IDEBAHASA KEPRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37296/jpi.v6i2.315

Abstract

The PkM activity aims to provide theoretical and practical training about web design that participants know and understand web design used Bootstrap. It is expected that this training will help students understand the web design concept. Partner is Pondok Pesantren Al-Mukhlis Desa Jatisari Kabupaten Bandung. The method used in PkM activities is training accompanied by demonstrations to increase the skills of participants related to web design material. PkM activities for junior high school participants have been realized in the form of training on Tuesdayy, August 31 2024. This PkM activity shows that students have acquired basic knowledge of web design. The students' active participation during the training indicates a positive response to the training material.
ANALISIS BIAYA MATERIAL PEKERJAAN DINDING MENGGUNAKAN BETON PRECAST DAN BATA RINGAN PADA PROYEK GEDUNG PT. MATTEL INDONESIA CIKARANG BEKASI Raafidiani, Reni; Garata, Garwin; Febriansya, Aditia
Jurnal TEDC Vol 18 No 2 (2024): JURNAL TEDC
Publisher : UPPM Politeknik TEDC Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70428/tedc.v18i2.843

Abstract

PT. Mattel Indonesia in Cikarang Bekasi during structural work so the contractor must determine the strategy that must be used to speed up the completion of the project. Replacing the materials used in wall work is one alternative that can be done by the contractor. Where the yield value is there are two material choices, namely precast concrete with a yield of 246,131.11 m2 and a lightweight brick yield of 232,101.6 m2. Thechoice of the two materials is determined by considering a study of the material costs required to install each material. The analysis carried out begins by studying the literature on the management of each material and knowing the conditions in the field. The design budget (RAB) required for precast concrete walls and lightweight brick walls is comparable. The duration required for the work of making precast concrete walls and lightweight brick walls is comparable. In terms of material cost comparison, precast concrete walls have the most effective SOP to apply in this project. Of all the variables compared, the material that is suitable to replace wall material in this project is precast concrete walls.
PEMANFAATAN LIMBAH GROUND GRANULATED BLAST FURNACE SLAG (GGBFS) DAN FLY ASH SEBAGAI PENGGANTI SEBAGIAN SEMEN PADA KUAT TEKAN BETON Raafidiani, Reni; Putri, Asti Aprillia Rekta; Febriansya, Aditia
Jurnal TEDC Vol 19 No 1 (2025): JURNAL TEDC
Publisher : UPPM Politeknik TEDC Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70428/tedc.v19i1.1214

Abstract

Ground Granulated Blast Furnace Slag (GGBFS) and Fly Ash are two industrial by-products with great potential as partial cement substitutes in concrete mixtures. GGBFS is a by-product of the iron smelting process in the steel industry. Once cooled and ground into a fine powder, it exhibits pozzolanic and cementitious properties. Meanwhile, Fly Ash, the residual ash from coal combustion in power plants, also possesses pozzolanic characteristics. The use of GGBFS and Fly Ash not only reduces the reliance on Portland cement but also provides various technical benefits, such as improving the durability of concrete, reducing heat of hydration, and enhancing long-term strength. Additionally, utilizing these materials aligns with the principles of sustainable development by reducing industrial waste and lowering carbon emissions. This study employs Ground Granulated Blast Furnace Slag (GGBFS) and Fly Ash as partial substitutes for cement in the production of geopolymer concrete. The proportion of GGBFS used is 50% of the total cement weight, while Fly Ash is applied in proportions of 5%, 10%, and 15% of the total cement weight. The concrete was designed with a target compressive strength of 26 MPa. Tests were conducted on 24 cylindrical concrete samples measuring 15 x 30 cm. The results revealed that the average compressive strength of concrete at 28 days was 34.15 MPa for normal concrete. For mixtures with a PCC:GGBFS:Fly Ash ratio of 45:50:5, the average compressive strength was 23.46 MPa; for a 40:50:10 ratio, the average strength was 18.48 MPa; and for a 35:50:15 ratio, the average strength was 19.54 MPa. Based on the analysis, the mix with 50% GGBFS and 5% Fly Ash was determined to be the optimal combination, as it achieved the highest compressive strength among all variations, at 23.46 MPa. This demonstrates that this combination can be utilized as a partial cement replacement for concrete production, considering specific requirements and its potential applications.
Co-Authors Aditia Febriansya Andri Krisnandi Somantri, Andri Krisnandi Garata, Garwin Ihsan Kamil, Ali Iskandar, Rachmat Lindung Zalbuin Mase, Lindung Zalbuin lndah, Risma Nur Mulyadi Yuswandono Nia Ekawati, Nia Putri, Asti Aprillia Rekta Sihombing, Atmy Verani R Siti Patimah Tati Ernawati Tresnawati, Shandy