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All Journal Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan KACANEGARA Jurnal Pengabdian pada Masyarakat Advance Sustainable Science, Engineering and Technology (ASSET)
Arif Hidayat
Universitas Diponegoro
Agriculture, Biological Sciences & Forestry Chemistry Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Education Electrical & Electronics Engineering Industrial & Manufacturing Engineering

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Comparison of Physical Properties and Strength of Geopolymer Mortar with White Soil Substitution and Mortar with Portland Pozzolan Cement under Corrosive Seawater Conditions Yulita Arni Priastiwi; Rudi Yuniarto Adi; Arif Hidayat; Abi Nabil Hanif; Bima Bima
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 20, No 3 (2023): November 2023
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/presipitasi.v20i3.534-544

Abstract

Construction also causes environmental pollution due to excessive cement production, so an alternative to cement is needed. Geopolymer is considered an alternative material to replace cement. This research compares three variations of mortar (PPC, geopolymer, and geopolymer with white soil) in a seawater environment. Research in the laboratory with 5x5x5 cm mortar specimens and test parameters for porosity, compressive and direct tensile strength, density, and absorption has been carried out. Microstructure due to immersion effect was also carried out but only on MGT15 mortar. The results showed that the PPC mortar had the highest compressive and tensile strength among the three variations, namely 27.80 MPa and 2.540 MPa at 28 days of age, the most negligible porosity and absorption were 1.124% and 76 gram/100cm2, and increased density after immersion. However, when immersing for 56 days, the decrease in strength reached 21%, while geopolymer mortar tended to be stable and even increased to 19%. Microstructure tests in the form of SEM and EDX on MGT15 showed the effect of seawater immersion, such as the presence of cracks, ettringite, and bad reactions. Soaking in seawater caused a decrease in some mortar strength supporting compounds and the appearance of 0.3% free chloride at 28 days of immersion.
Mechanical Performance of Recycled Plastic-Based Paving Blocks with Sand and Fly Ash Fillers Mochammad Qomaruddin; Adi Noor Fakhriyan; Yayan Adi Saputro; Yulita Arni Priastiwi; Fatchur Roehman; Nasyiin Faqih; Arif Hidayat; Akhmad Firdos Khoiril Khitam
Advance Sustainable Science Engineering and Technology Vol. 8 No. 2 (2026): February-April
Publisher : Science and Technology Research Centre Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/asset.v8i2.2664

Abstract

The use of recycled plastic waste as a binder for paving blocks has been reported in a number of previous studies. However, most of these studies focus on feasibility and do not clearly explain how different plastic types behave mechanically over time. In this study, the compressive strength performance of paving blocks made from polypropylene (PP), polyethylene terephthalate (PET), and high-density polyethylene (HDPE) was experimentally compared using sand or fly ash as fillers. All mixtures were prepared with a fixed composition of 60% plastic and 40% aggregate. Compressive strength testing was carried out at 28 and 56 days using three specimens for each mix. The results show that the HDPE–sand mixture achieved the highest compressive strength at 28 days, reaching 15.7 MPa. Nevertheless, a noticeable reduction in strength was observed at 56 days, particularly in the HDPE-based mixtures. This reduction is mainly associated with polymer shrinkage and the development of interfacial stresses between the plastic binder and the aggregates. Overall, the results indicate that plastic-based paving blocks can meet the requirements of SNI 03–0691–1996 for light-duty applications, although their long-term mechanical stability remains a limitation that needs further attention.
Transformasi limbah desa sabang jadi kerajinan ekonomi berbasis IKIGAI Arif Hidayat; Muammar Muammar; Muhammad Nur Fauzi; Jama Dilla Mutsanna; Annisa Trifani; Nasriah Aulia
KACANEGARA Jurnal Pengabdian pada Masyarakat Vol 9, No 1 (2026): February
Publisher : Institut Teknologi Dirgantara Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28989/kacanegara.v9i1.3008

Abstract

Desa Beurawang Sabang Aceh memiliki sumber daya alam yang kaya seperti kelapa, hasil lautan, batu dan karang yang mana belum dimanfaatkan secara optimal karena keterbatasan pengetahuan dan keterampilan masyarakat setempat dalam mengembangkan olahan pangan lokal. Pengabdian masyarakat ditujukan untuk mengembangkan produk kerajinan lokal yang bernilai ekonomis melalui pemanfaatan limbah desa tidak terpakai dan pemasaran yang tepat. Metode kegiatan berupa pelatihan dan penyuluhan dengan menerapkan konsep IKIGAI yang melibatkan partisipasi aktif dari masyarakat. Hasil kegiatan menunjukkan adanya peningkatan wawasan dan keterampilan masyarakat dalam melakukan inovasi pengolahan limbah sehingga hasil produk kerajinan lebih bervariasi dan menghasilkan nilai ekonomis. Disamping itu, masyarakat semakin memahami pemasaran agar produk kerajinan yang dihasilkan lebih diminati oleh wisatan sebagai ciri khas daerah. Pada program ini juga dikembangkan labeling, kemasan, dan katalog produk. Inovasi produk dan pemasaran menjadi salah satu kunci penting agar produk kerajinan dapat menjadi salah satu sumber daya Tarik Desa Beurawang, Sabang, Aceh.
Co-Authors Abi Nabil Hanif Adi Noor Fakhriyan Akhmad Firdos Khoiril Khitam Annisa Trifani Bima Bima Fatchur Roehman Jama Dilla Mutsanna Muammar Muammar Muhammad Nur Fauzi Nasriah Aulia Nasyiin Faqih Qomaruddin, Mochammad Rudi Yuniarto Adi Yayan Adi Saputro Yulita Arni Priastiwi