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All Journal Multidiciplinary Output Research for Actual and International Issue (Morfai Journal) International Journal of Research in Vocational Studies (IJRVOCAS) Jurnal Teknik Sipil Macca
Rasiwan
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Pengaruh Penggunaan Kaolin pada Kuat Tekan Beton sebagai Pengganti Sebagian Aggregat Halus Sasongko, Hartanto Wahyu; Rasiwan; Sarpawi
Jurnal Teknik Sipil MACCA Vol. 10 No. 1 (2025): Jurnal Teknik Sipil MACCA (FEBRUARI 2025)
Publisher : Universitas Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33096/7fv53230

Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh penambahan kaolin terhadap kuat tekan beton ketika digunakan menjadi bahan substitusi sebagian agregat halus, untuk mengetahui model hubungan antara kuat tekan beton dengan campuran kaolin sebagai bahan substitusi sebagian agregat halus (pasir) dan untuk mengetahui komposisi campuran kaolin yang paling optimal untuk kekuatan tekan beton. Percobaan kualitatif yang dilakukan pada struktur material beton menggunakan kaolin sebagai pengganti agregat halus adalah subjek penelitian ini. Beton direncanakan memiliki kualitas K-250, sesuai dengan standar kualitas beton yang digunakan pada bangunan tempat tinggal (1 hingga 2 lantai). Campuran kaolin yang digunakan adalah dengan persentase 0%, 25% dan 50% dari berat pasir sesuai job mix formula. Setelah 28 hari, kuat tekan sampel diuji di laboratorium. Dari tes, hasilnya menunjukkan bahwa rata-rata kuat tekan pada beton normal tanpa campuran kaolin adalah 368,8 kg/cm2, pada beton dengan campuran kaolin 25% adalah 239,76 kg/cm2, dan pada beton dengan campuran kaolin 50% adalah 159,41 kg/cm2, ini menunjukkan bahwa kaolin tidak cocok digunakan sebagai bahan campuran beton untuk pengganti sebagian aggregat halus. Persentase optimal kaolin yang digunakan sebagai pengganti agregat halus adalah dengan persentase campuran 0%.
PROVISION AND REJUVENATION OF LEARNING SUPPORT FACILITIES AT MTs BAITUL MUBAROK, KUBU RAYA REGENCY Asmadi; Sarpawi; Rizal; Iwan Supardi; Helyanto; Rona Ariyansyah; Muhammad Taufik Habibillah Ibnu Ahmad; Rasiwan; Muhammad Abduh; Susi Hariyani
Multidiciplinary Output Research For Actual and International Issue (MORFAI) Vol. 6 No. 2 (2026): Multidiciplinary Output Research For Actual and International Issue
Publisher : RADJA PUBLIKA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.18812116

Abstract

The limited learning facilities at MTs Baitul Mubarok, including the absence of classroom ceilings, damaged doors, and unfit desks, chairs, and whiteboards, have hindered comfort and safety in the learning process. The Community Service Program (PKM) of the Civil Engineering Department at Politeknik Negeri Pontianak was carried out to provide and refurbish these facilities while offering practical learning experiences for students. The method included situation analysis, planning, material preparation, product fabrication in the workshop, and delivery to the partner. The program produced 36 desks, 76 chairs, 3 whiteboards, and 3 sets of classroom doors, all meeting the standards of Permendiknas No. 24/2007. The activity improved the quality of learning facilities, enhanced student comfort, and strengthened students' technical skills and social awareness, although ceiling repairs could not be completed due to budget limitations.
Steel Structure Design for a 4-Story Apartment Building on Tanjungpura Street, Pontianak City Repo, Marsianus; Leojarma, Anggara; Anggraini, Irene; Rasiwan
International Journal of Research in Vocational Studies (IJRVOCAS) Vol. 5 No. 4 (2026): IJRVOCAS - Special Issues - Hybrid International Conference on Construction, Ma
Publisher : Yayasan Ghalih Pelopor Pendidikan (Ghalih Foundation)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/ijrvocas.v5i4.228

Abstract

The construction of apartments on the banks of the Kapuas River in Pontianak City has become an urgent necessity due to high urbanization rates and limited land availability. The design of this steel structure uses the LRFD method based on SNI 1729:2020, SNI 7860:2020, SNI 1726:2019, and SNI 2847-2019 with a Regular Moment Resisting Frame System. The four-story building, measuring 40x30 meters and made of BJ37 steel, uses composite floor slabs, with steel profiles consisting of main beams. The design uses a Moment Resisting Frame (MRF) system to withstand lateral loads on soft soil in Pontianak. The analysis results show a maximum inter-story drift of 26.7 mm, still far below the 80 mm limit according to SNI 1726:2019. This study confirms that the use of BJ37 steel with composite plates significantly reduces dead loads compared to conventional concrete, making it a viable solution for the area. Structural connections at the intersections of beams and columns use high-quality A325 bolts.
The Influence of Kaolin as an Additive on Concrete Compressive Strength Rasiwan; Sasongko, Hartanto Wahyu; Abduh, Muhammad
International Journal of Research in Vocational Studies (IJRVOCAS) Vol. 5 No. 4 (2026): IJRVOCAS - Special Issues - Hybrid International Conference on Construction, Ma
Publisher : Yayasan Ghalih Pelopor Pendidikan (Ghalih Foundation)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/ijrvocas.v5i4.237

Abstract

Kaolin is a clay soft, white mineral which can be found in nature and is known as clay stones. This research aimed to investigate the effect of using kaolin as an additive material toward compressive strength of concrete. This was qualitative experimental research which the object being a concrete K-350. The researchers planned K-350 based on the concrete standard for building structure four floors. The kaolin mixture used was at a percentage of 5%, 10%, and 15% of the cement weight according to the job mix formula for K-350 concrete quality. After 28 days, the resulting concrete samples were tested in the laboratory using a compressive strength testing machine. The results showed that the average compressive strength of kaolin 5%, 10%, and 15% were 27.27 MPa, 30.15 MPa and 24.48 MPa. The optimum result of the kaolin mixture was 15%. Based on the result, the researchers did not recommend applying kaolin as an additive material for building structure four floors.
Co-Authors Asmadi Helyanto Irene anggraini iwan supardi Leojarma, Anggara Muhammad Abduh Muhammad Abduh Muhammad Taufik Habibillah Ibnu Ahmad Repo, Marsianus Rizal Rona Ariyansyah Sarpawi Sasongko, Hartanto Wahyu Susi Hariyani