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All Journal SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Jurnal Bakti Masyarakat Indonesia Jurnal Konstruksi
Fathoni Usman
Universitas Indo Global Mandiri
Agriculture, Biological Sciences & Forestry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Health Professions Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Medicine & Pharmacology Nursing Public Health Social Sciences Other

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Pengaruh Campuran Consol N11 LN dan Consol SG Pada Kuat Tekan dan Serapan Air Self Compacting Concrete (SCC) Edi Virlade; Fathoni Usman; Debby Sinta Devi
Jurnal Konstruksi Vol 23 No 2 (2025): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.23-2.2603

Abstract

Self-Compacting Concrete (SCC) is a type of concrete capable of compacting itself without the use of vibrators, characterized by a high slump and the ability to flow under its own weight to fill formwork completely without segregation, thereby simplifying the construction process. The materials used to produce SCC include fine aggregates, coarse aggregates, water, and cement, combined with admixtures in the form of superplasticizers. The superplasticizers added in this study were Consol SG at 0.3% and Consol N11 LN at variations of 0.6%, 1.4%, and 2%. Workability test results for SCC indicated slump flow values of 39.17 cm for 0.6% SCC, 56.72 cm for 1.4% SCC, and 61.24 cm for 2% SCC. L-Shape Box tests yielded results of 0.067 for 0.6% SCC, 0.949 for 1.4% SCC, and 0.987 for 2% SCC. The V-Funnel Test produced times of 32 seconds for 0.6% SCC, 11 seconds for 1.4% SCC, and 8 seconds for 2% SCC. Compressive strength testing of normal concrete showed values of 22.36 MPa at 7 days, 28.79 MPa at 14 days, and 35.28 MPa at 28 days. For SCC with 0.6% admixture, compressive strengths were 23.85 MPa at 7 days, 29.58 MPa at 14 days, and 36.17 MPa at 28 days. SCC with 1.4% admixture yielded compressive strengths of 25.27 MPa at 7 days, 30.16 MPa at 14 days, and 38.26 MPa at 28 days. SCC with 2% admixture reached compressive strengths of 28.04 MPa at 7 days, 33.62 MPa at 14 days, and 38.63 MPa at 28 days. Water absorption tests at 28 days showed values of 120 g for normal concrete, 110 g for SCC with 0.6% admixture, 100 g for SCC with 1.4% admixture, and 110 g for SCC with 2% admixture.
Analisis Pemanfaatan Limbah Las Karbit sebagai Substitusi Sebagian Semen untuk Peningkatan Mutu dan Beton Berkelanjutan Debby Sinta Devi; Fathoni Usman; M Farhan Nurhadi
Jurnal Konstruksi Vol 23 No 2 (2025): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.23-2.3017

Abstract

Increasing cement consumption in line with growing construction activities has led to higher building costs and rising carbon dioxide (CO2) emissions, both of which contribute to global warming. One potential alternative material is carbide welding waste, a residue generated from welding processes that is often underutilized and frequently becomes waste with the potential to pollute the environment. This study aims to analyze the effect of using carbide welding waste as a partial cement substitute on the physical and mechanical properties of concrete, particularly its water absorption (absorptivity) and compressive strength. The method used is an experimental approach with substitution variations of 6%, 9%, and 12% of carbide welding waste relative to the cement weight. The test results show that these substitution percentages produce different effects on the characteristics of the concrete. A 9% substitution provides the most optimal outcome, with a compressive strength of 28.95 MPa and the lowest absorption value of 2.4417%. These values are superior to those of normal concrete without substitution, which has a compressive strength of 25.64 MPa and an absorption value of 2.7001%. At 6% substitution, the compressive strength reaches 26.74 MPa with an absorption value of 2.5481%, while at 12% substitution, concrete quality declines, with compressive strength dropping to only 22.50 MPa and absorption increasing to 3.2416%. The findings demonstrate that carbide welding waste can be used as a partial cement substitute, with the optimal percentage being 9%.
Perencanaan drainase kelurahan Sukamulya Ratih Baniva; Fathoni Usman; Henggar Risa Destania; Ghina Amalia; Ockta Firmansyah
SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Vol 9, No 3 (2025): May
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jpmb.v9i3.30354

Abstract

Abstrak Adanya berbagai pembangunan di wilayah Kelurahan Sukamulya dan jumlah penduduk yang meningkat pada saat musim penghujan mengakibatkan sering terjadi masalah drainase seperti limpasan dan genangan dipermukaan jalan yang diakibatkan karna hanya ada drainase alami di kelurahan Sukamulya Kecamatan Sematang Borang Kota Palembang. Dalam mengatasi limpasan dan genangan yang terjadi di kelurahan Sukamulya Kecamatan Sematang Borang Kota Palembang perlu dilakukan perencanaan drainase yang disertai perhitungan Rencana Anggaran Biaya (RAB) sehingga pelaksanaan PkM ini bertujuan untuk memberikan bantuan perencanaan drainase di kelurahan Sukamulya dengan melibatkan lurah Sukamulya, ketua RT.017 dan 5 warga RT.017. Tahapan PkM yang dilakukan yaitu survei lokasi, perencanaan drainase, penyusunan RAB yang disesuaikan dengan gambar desain drainase dan perhitungan menggunakan analisis harga satuan pekerjaan (AHSP) setempat dan melakukan sosialisasi kepada masyarakat dan lurah. Hasil dari PkM menunjukkan hasil rekapitulasi Rencana Anggaran Biaya (RAB) pada perencanaan drainase kelurahan Sukamulya dengan panjang saluran 100 m yaitu sebesar Rp. 129.996.800. Perhitungan biaya ini dapat dijadikan dasar dalam membangun saluran drainase di kelurahan Sukamulya kedepanya nanti. Kesimpulan dari PkM ini adalah diharapkan dengan adanya hasil perhitungan dapat membantu masyarat kelurahan Sukamulya dan lurah dalam membangun drainase kedepannya dan dana ini dapat dianggarkan atau diajukan kepada pemerintah setempat. Kata kunci: perencanaan drainase; Rencana Anggaran Biaya (RAB); Sukamulya. AbstractThe existence of various developments in the Sukamulya Urban Village area and the increasing population during the rainy season results in frequent drainage problems such as runoff and puddles on the road surface caused because there is only natural drainage in Sukamulya Village, Sematang Borang Subdistrict, Palembang City. In overcoming runoff and inundation that occurs in Sukamulya village, Sematang Borang sub-district, Palembang city, it is necessary to carry out drainage planning accompanied by the calculation of the Budget Plan (RAB) so that the implementation of this PkM aims to provide drainage planning assistance in Sukamulya village by involving the Sukamulya village head, the head of RT.017 and 5 RT.017 residents. The PkM stages carried out are location surveys, drainage planning, preparation of RAB adjusted to the drainage design drawings and calculations using local work unit price analysis (AHSP) and socializing to the community and village head. The results of the PkM  show the results of the recapitulation of the Budget Plan Cost (RAB) in the drainage planning of Sukamulya village with a channel length of 100 m, which amounted to Rp. 129,996,800. This cost calculation can be used as a basis for building drainage channels in Sukamulya village in the future. The conclusion of this PkM is that it is hoped that the results of the calculation can help the Sukamulya village community and the village head in building drainage in the future and these funds can be budgeted or submitted to the local government. Keywords: drainage planning; cost budget plan; Sukamulya.
BANTUAN DESAIN GAPURA DENGAN IDENTITAS LOKAL PADA KELURAHAN SUKAJADI KECAMATAN TALANG KELAPA Debby Sinta Devi; Fathoni Usman; Ratih Baniva; Sumi Amariena Hamim; Marguan Fauzi; Denie Chandra; Febryandi
Jurnal Bakti Masyarakat Indonesia Vol. 8 No. 3 (2025): Jurnal Bakti Masyarakat Indonesia
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat, Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24912/jbmi.v8i3.35673

Abstract

This community service activity was carried out in Sukajadi Village, Talang Kelapa Subdistrict, Banyuasin Regency, with the aim of designing and planning a gate that could represent the local identity of the area. As an architectural element, the gate not only functions as an entrance, but also as a symbol of culture, history, and local wisdom values of the community. The main challenge faced by Sukajadi Village is the absence of a gate that represents the local identity and cultural character of the local community. Through a participatory approach, this activity involved the community, the subdistrict government, and academics in all stages of implementation, from field surveys, interviews with community leaders, focus group discussions, inventory of local potential, to technical design using AutoCAD and SketchUp software. The result of this activity was a modern minimalist gate design with a harmonious blue and cream color composition, complete with the government and university logos as symbols of collaboration. The total planned construction budget of IDR 17,106,814.00 was prepared transparently and agreed upon by all stakeholders. Based on the satisfaction survey results, 100% of respondents expressed satisfaction with the quality of the design and the collaborative process. This activity demonstrates that community service based on participation can strengthen local identity, increase community ownership, and serve as a model for collaboration between academics and residents in sustainable development based on local wisdom.
Co-Authors Debby Sinta Devi Debby Sinta Devi Denie Chandra Edi Virlade Febryandi Ghina Amalia Henggar Risa Destania M Farhan Nurhadi Marguan Fauzi Ockta Firmansyah Ratih Baniva Sumi Amariena Hamim