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All Journal Journal Dynamic SainT Paulus Law Journal Jurnal Pengabdian kepada Masyarakat Nusantara Jurnal Pengabdian kepada Masyarakat Jurnal Karajata Engineering Journal of Innovative and Creativity
Hernita Matana
Program Studi Teknik Sipil, Fakultas Teknik, Universitas Kristen Indonesia Toraja
Agriculture, Biological Sciences & Forestry Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Public Health Social Sciences Transportation Other

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Evaluasi Sifat Mekanis Beton Menggunakan Agregat Kasar Batu Andesit Toraja Utara Israel Padang; Hernita Matana; Yulius Pakiding; Fiki Kogoya; Zet Karangan
Jurnal Karajata Engineering Vol. 6 No. 2 (2026): 2026
Publisher : Fakultas Teknik Universitas Muhammadiyah Parepare

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31850/karajata.v6i2.3781

Abstract

The increasing demand for concrete has intensified the exploitation of natural coarse aggregates, while large quantities of andesite waste generated from stone-carving activities in North Toraja remain underutilized. This study investigates the feasibility of using locally sourced andesite waste as a 100% replacement for conventional coarse aggregate in normal-strength concrete. Concrete specimens with a target compressive strength of 20 MPa were prepared and tested for workability, compressive strength at 3, 7, 14, and 28 days, and splitting tensile strength at 28 days. Experimental results showed that the andesite aggregate satisfied all standard requirements for coarse aggregates. The concrete containing andesite aggregate achieved a 28-day compressive strength of 18.02 MPa and a splitting tensile strength of 2.93 MPa, compared with 19.82 MPa and 3.16 MPa for the control concrete, representing reductions of approximately 9.1% and 7.3%, respectively. Despite these reductions, the concrete remained within the range of normal-strength structural concrete. The findings demonstrate that waste andesite from local stone-processing activities can be utilized as an alternative coarse aggregate, contributing to sustainable construction practices and reducing dependence on natural aggregate resources.
Pelatihan RAB Infrastruktur Partisipatif bagi Tim Pelaksana Kegiatan Desa di Kecamatan Rantetayo Israel Padang; Hernita Matana; Harni Eirene Tarru; Zwengly Lodi Honta; Memed Timang Palebangan
Jurnal Pengabdian kepada Masyarakat Nusantara Vol. 7 No. 3 (2026): Edisi September - Oktober
Publisher : Lembaga Dongan Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55338/jpkmn.v7i3.8908

Abstract

Tim Pelaksana Kegiatan (TPK) memiliki peran penting dalam perencanaan dan pelaksanaan pembangunan infrastruktur desa, khususnya dalam penyusunan Rencana Anggaran Biaya (RAB). Permasalahan utama yang dihadapi mitra di Kecamatan Rantetayo adalah keterbatasan pemahaman teknis dalam menghitung volume pekerjaan, menentukan kebutuhan bahan dan upah, menyusun harga satuan, menerapkan Analisis Harga Satuan Pekerjaan (AHSP), serta menggunakan Microsoft Excel secara sistematis. Kegiatan pengabdian kepada masyarakat ini bertujuan meningkatkan kapasitas TPK dalam menyusun RAB infrastruktur desa berbasis AHSP dengan bantuan Microsoft Excel. Metode pelaksanaan meliputi observasi kebutuhan mitra, penyampaian materi, praktik penyusunan RAB, pendampingan teknis, dan evaluasi hasil pekerjaan peserta yang dilaksanakan selama dua belas hari.  Adapun materi utama pelatihan berupa struktur RAB, perhitungan volume pekerjaan, penyusunan kebutuhan bahan dan upah, penggunaan rumus Excel, serta simulasi penyusunan RAB sederhana. Hasil kegiatan menunjukkan peningkatan pemahaman dan keterampilan peserta. Evaluasi praktik menunjukkan capaian kemampuan sebesar 80% dalam penyusunan RAB jalan dan 75% dalam penyusunan RAB talud. Kegiatan ini berdampak positif terhadap peningkatan kualitas perencanaan anggaran infrastruktur desa yang lebih akurat, transparan, terstruktur, dan berbasis teknologi informasi.
Co-Authors Abraham Ganti Agustina Pagatiku ARRANG, ABDIAS TANDY Bastian Artanto Ampangallo Dendo, Ermitha Ambun Rombe Escher Kalapadang Escher Kalapadang Feri Daud Biang Fiki Kogoya Gersony Miri Harni Eirene Tarru Harni Tarru Hasyim Basri Honta, Zwengly Lodi Israel Padang Jery D. Paridy Jufri Manga Letty A.R Marchelin Marinus Linggi Memed Timang Palebangan Memed Timang Palembangan Oktavia Oktavia Parea Rusan Rangan Rael Rabang Matasik Randika Reski Patabang Regita O. Runtukahu Rudolfo Victor Sunarno, Yohans Yohanis B. Lotim Yohanis B. Lotim Yulieanti S. Mapaliey Yulius Pakiding Yulius Pasarrin Yusran Londongsalu Yusuf Limbongan Zain Patongloan Zain Patongloan Zet Karangan Zwengli Lodi Honta Zwengly Lodi Honta