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All Journal Jurnal Abdi Masyarakat Multidisiplin Indonesian Journal of Multidisciplinary on Social and Technology
Y. Sulistiyohadi
Universitas Dian Nusantara
Computer Science & IT Economics, Econometrics & Finance Engineering Social Sciences

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Sosialisasi Pembuatan Eco-Paving Block Berbasis Serbuk Cangkang Telur sebagai Material Konstruksi Ramah Lingkungan Y. Sulistiyohadi; Era Agita Kabdiyono; Jalaludin Jalaludin; Achmad Sarwiji; Sigit Ary Cahyon; Tegar Rafii Fadh Lullah
 Jurnal Abdi Masyarakat Multidisiplin Vol. 5 No. 2 (2026): Agustus: JURNAL ABDI MASYARAKAT MULTIDISIPLIN
Publisher : Asosiasi Dosen Muda Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56127/jammu.v5i2.2799

Abstract

Eggshell waste is an organic waste commonly generated from households, school canteens, restaurants, and food industries, yet its utilization remains limited. Eggshells contain calcium carbonate (CaCO₃), which has the potential to be used as a partial cement substitute in environmentally friendly construction materials. This community service activity aims to improve the knowledge and skills of students at SMK Negeri 4 Kota Tangerang in utilizing eggshell waste as a mixture material for eco-concrete or eco-paving block production. The implementation method used a participatory approach, including preliminary observation, socialization of green technology concepts, training in processing eggshells into powder, product-making demonstrations, hands-on practice, discussion, documentation, and activity evaluation. The activity data were analyzed descriptively and qualitatively based on observation results, participant responses, documentation, and evaluation of participants’ understanding. The results show that participants gained knowledge about green technology, organic waste management, eggshell processing stages, and the potential of eggshell powder as an alternative material for non-structural construction products. This activity contributes to increasing environmental awareness and strengthening students’ practical skills in processing waste into value-added materials. The originality of this activity lies in the integration of environmental education, appropriate technology, and practice-based learning in introducing eggshell powder-based eco-paving block innovation within vocational education.
Evaluasi Efisiensi Waktu dan Biaya Konstruksi Saluran Drainase Otista–Kebon Nanas Reyno Antho Putra; Y. Sulistiyohadi
Indonesian Journal of Multidisciplinary on Social and Technology Vol. 4 No. 3 (2026): Juli - Oktober
Publisher : PT Ilmu Data Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69693/ijmst.v4i3.13563

Abstract

Pekerjaan konstruksi saluran drainase di kawasan perkotaan padat memiliki risiko tinggi mengalami penyimpangan waktu dan biaya karena pelaksanaan pekerjaan berinteraksi dengan lalu lintas, keterbatasan ruang kerja, utilitas bawah tanah, cuaca, serta ketentuan kontraktual. Penelitian ini bertujuan mengevaluasi efisiensi waktu dan biaya pekerjaan konstruksi saluran drainase pada ruas Jl. Otista 3–Jl. Kebon Nanas Selatan, Kelurahan Cipinang Cimpedak, Jakarta Timur, serta mengidentifikasi faktor penyebab perbedaan antara rencana dan realisasi. Penelitian menggunakan pendekatan deskriptif kuantitatif dengan membandingkan dokumen rencana proyek, meliputi Bill of Quantities, Rencana Anggaran Biaya, dan jadwal pelaksanaan, terhadap progres mingguan di lapangan. Analisis dilakukan menggunakan Kurva-S, Critical Path Method, varian anggaran periodik, Indeks Efisiensi Waktu (IEW), dan Indeks Efisiensi Biaya (IEB). Proyek direncanakan selesai dalam 13 minggu, tetapi realisasi mencapai 14 minggu sehingga diperoleh IEW sebesar 92,86% yang menunjukkan kinerja waktu belum efisien. Pada akhir durasi rencana, progres fisik mencapai 99,57% dengan Varian Anggaran Biaya sebesar -Rp7.812.492,51. Evaluasi biaya secara makro menghasilkan IEB sebesar 97,00%, namun nilai tersebut merupakan penghematan semu akibat perbedaan tarif Pajak Pertambahan Nilai, bukan efisiensi riil lapangan. Faktor utama penyebab deviasi meliputi keterbatasan ruang kerja, kemacetan, utilitas bawah tanah, cuaca, dan transisi regulasi perpajakan. Hasil penelitian menunjukkan perlunya percepatan aktivitas kritis, buffer waktu, dan antisipasi risiko fiskal sejak tahap perencanaan.
Co-Authors Achmad Sarwiji Era Agita Kabdiyono Jalaludin, Jalaludin Reyno Antho Putra Sigit Ary Cahyon Tegar Rafii Fadh Lullah