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All Journal International Journal of Technology and Education Research Mandela: Jurnal Ilmiah Pengabdian Masyarakat
Ardian Nor
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Agriculture, Biological Sciences & Forestry Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Environmental Science Languange, Linguistic, Communication & Media Social Sciences Other

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Lubricating Effects Against Interfaces Shear Strength Of Soil–Concrete And Concrete–Concrete Ardian Nor; Rustam Effendi
International Journal of Technology and Education Research Vol. 1 No. 04 (2023): October - December, International Journal of Technology and Education Research
Publisher : International journal of technology and education research

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63922/ijeter.v1i04.785

Abstract

Box Jacking is a trenchless method of underpass construction that consists in pushing one or more prefabricated concrete boxes into the soil using high capacity hydraulic jacks, while excavating the soil. The Box Jacking method generates soil-concrete frictions at all sides of a box and concrete-concrete friction while it is still on concrete platform. To minimalize this friction, lubricant such as oil and grease can be applied on all sides of the box. Objectives of this study are: 1) to identify soil classification, cohesion (c) and internal friction angle (f); 2) to obtain adhesion (ca) and interface friction angle (δ) for soil-concrete and concrete-concrete contact; 3) to obtain adhesion (ca) and interface friction angle (δ) for soil-concrete and concrete-concrete contact lubricated by oil; 4) to obtain adhesion (ca) and interface friction angle (δ) for soil-concrete and concrete-concrete contact lubricated by grease. Soil samples collected from soil investigation at Underpass Project Site at Tatakan, South Kalimantan, using soil boring test. Samples used for laboratory test are soil below 1.50-2.00 m, 2.50-3.00 m, and 4.50-5.00 m from ground surface. Cylindrical concrete samples are a diameter of 63.1 mm and a height of 20 mm. The concrete strength of concrete sample is 25 MPa. Lubricants used are oil and grease. Types of viscosity of oil used are SAE 5W-40, SAE 10W-40, SAE 15W-40, and SAE 20W-50. Type of viscosity of grease used are NLG#I, NLGI#2 and NLGI#3. Direct shear test was conducted to obtain soil-concrete and concrete-concrete friction values. Addition of grease to surface contact influences adhesion (ca) and interface friction angle (δ) significantly. In case of soil-concrete contact, adhesion (ca) and interface friction angle (δ) are 10.87 kPa and 22.64°. Addition of lubricant can decrease adhesion (ca) and interface friction angle (δ) to 11.80 kPa and 10.87° for oil and 0.44 kPa and 3.88° for grease. In case of concrete-concrete contact, adhesion (ca) and interface friction angle (δ) are 6.20 kPa and 32.93°. Addition of lubricant can decrease adhesion (ca) and interface friction angle (δ) to 4.26 kPa and 33.76° for oil and 0 kPa and 3.17° for grease.
Pelatihan dan Pendampingan Pengisian Beban Kerja Dosen (BKD) Menggunakan Aplikasi Sister dan Jabatan Fungsional Menggunakan Aplikasi Singkron Syarifuddin Syarifuddin; Ardian Nor; Muslimin Muslimin; Asmawati Asmawati; Mastur Djafrie
Mandela : Jurnal Ilmiah Pengabdian Masyarakat Vol. 1 No. 02 (2025): Mandela: Jurnal Ilmiah Pengabdian Masyarakat
Publisher : Universitas Muhammadiyah Berau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35915/mandela.v1i02.1088

Abstract

Lecturers have the obligation to carry out the tridharmaactivities of education, namely teaching, research andcommunity service. The implementation of lecturer tridharmaactivities since July 2021 has used sister applications throughthe Lecturer Workload (BKD) filling activities that have beenprovided by the government. Likewise for the promotion offunctional positions, for universities in the Kalimantan regionusing the synchronous application2 that has been provided bythe Higher Education Service Institution (LLDikti) Region XIKalimantan. The method of the activity was carried out in theform of lectures and question and answer discussions at theUniversity of Muhammadiyah Berau. The result of this activityis that lecturers know and are able to operationalize the fillingof the tridharma through the way of filling the LecturerWorkload (BKD) through the Sister Application and applying forfunctional positions through the Singkron application.
Partisipasi Masyarakat dan Komitmen Hibah Lahan dalam Perencanaan Embung Pertanian di Kabupaten Bone Tambaru; Nusbih Ismail; Ardian Nor; Delma Pratisa; Halimatus Sakdiyah
Mandela : Jurnal Ilmiah Pengabdian Masyarakat Vol. 2 No. 01 (2026): Mandela: Jurnal Ilmiah Pengabdian Masyarakat
Publisher : Universitas Muhammadiyah Berau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35915/mandela.v2i01.1190

Abstract

Ketersediaan air merupakan faktor kritis bagi masyarakat agraris, terutama pada musim kemarau. Pembangunan embung menjadi solusi strategis untuk irigasi dan konservasi air. Namun, perencanaan infrastruktur sering menghadapi kendala sosial, seperti pembebasan lahan dan minimnya rasa kepemilikan masyarakat. Program pengabdian masyarakat ini bertujuan untuk mensosialisasikan perencanaan teknis embung, menampung aspirasi, dan mengamankan komitmen hibah lahan dari masyarakat di Kabupaten Bone. Kegiatan dilaksanakan melalui Pertemuan Konsultasi Masyarakat-1 (PKM-1) pada 6 Oktober 2025, melibatkan pemerintah daerah, kelompok tani (P3A), tokoh masyarakat, dan pemilik lahan dari delapan desa sasaran. Metode yang digunakan adalah pendekatan partisipatif melalui sosialisasi teknis, dialog interaktif, dan negosiasi langsung. Hasil kegiatan menunjukkan tingginya dukungan masyarakat, dibuktikan dengan kesepakatan bulat untuk menghibahkan lahan tanpa ganti rugi, khususnya hibah lahan seluas 25 x 45 m di Desa Biru. Masyarakat juga menunjukkan rasa memiliki dan kesiapan untuk mengelola embung secara bersama-sama pasca-konstruksi. Model perencanaan partisipatif ini terbukti efektif dalam membangun rasa tanggung jawab, memitigasi sengketa lahan, dan mencegah vandalisme, sehingga menjamin keberlanjutan infrastruktur air pertanian.
Pembentukan Karakter dan Kepemimpinan Pemuda pada Pemusatan Latihan Paskibraka Kabupaten Berau Charlie Novianry Panjaitan; Ardian Nor; Rafli Yunianto Pratama; Awaliya Nursanti; Arsy Husnanda; Syaprudin
Mandela : Jurnal Ilmiah Pengabdian Masyarakat Vol. 2 No. 01 (2026): Mandela: Jurnal Ilmiah Pengabdian Masyarakat
Publisher : Universitas Muhammadiyah Berau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35915/mandela.v2i01.1196

Abstract

Pendidikan dan Pelatihan (Diklat) bagi Calon Pasukan Pengibar Bendera Pusaka (Paskibraka) merupakan instrumen strategis dalam pembentukan karakter, disiplin, dan jiwa kepemimpinan generasi muda di tingkat daerah. Penelitian ini bertujuan untuk mendeskripsikan dan menganalisis secara mendalam proses pemusatan pendidikan dan pelatihan calon Paskibraka di Kabupaten Berau tahun 2025. Fokus utama penelitian mencakup internalisasi nilai-nilai "BerAKHLAK", pengembangan ketahanan fisik, serta penguatan mentalitas kebangsaan di tengah dinamika pergaulan generasi digital. Metode penelitian yang digunakan adalah deskriptif kualitatif dengan teknik observasi partisipatif, wawancara mendalam, dan studi dokumentasi selama masa karantina di SM Tower Berau. Hasil penelitian menunjukkan bahwa diklat ini berhasil mengintegrasikan aspek kognitif (wawasan kebangsaan), afektif (sikap dan nilai etika), dan psikomotorik (keterampilan baris-berbaris). Pendekatan "Pembelajaran Aktif" yang diterapkan instruktur mampu mendorong nalar kritis dan public speaking peserta. Nilai-nilai kedisiplinan, toleransi antar-peserta dari berbagai kecamatan, dan rasa nasionalisme yang ditanamkan selama masa pemusatan memberikan dampak transisional yang signifikan terhadap kematangan emosional dan manajerial peserta. Program ini terbukti sangat efektif sebagai kawah candradimuka untuk kaderisasi kepemimpinan pemuda yang berwawasan kebangsaan dan berintegritas di Kabupaten Berau.
Co-Authors Arsy Husnanda Asmawati Asmawati Awaliya Nursanti Charlie Novianry Panjaitan Delma Pratisa Halimatus Sakdiyah Mastur Djafrie Muslimin Muslimin Nusbih Ismail Rafli Yunianto Pratama Rustam Effendi Syaprudin Syarifuddin Syarifuddin Tambaru