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All Journal JPM17: Jurnal Pengabdian Masyarakat JHP17 (Jurnal Hasil Penelitian) Emerging Science Journal Civil Engineering Journal ABDI MASSA: Jurnal Pengabdian Nasional
Harjo Seputro, Harjo
Universitas 17 Agustus 1945 Surabaya
Agriculture, Biological Sciences & Forestry Arts Humanities Civil Engineering, Building, Construction & Architecture Economics, Econometrics & Finance Environmental Science Industrial & Manufacturing Engineering Public Health Social Sciences Other

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ANALISA PENGARUH ELECTROLESS PLATING ABU DASAR BATU BARA SEBAGAI PENGUAT KOMPOSIT MATRIKS LOGAM TERHADAP PRODUK REAKSI YANG TERBENTUK PADA PERMUKAAN ABU DASAR BATUBARA santoso, edi; Seputro, Harjo; Himawan, Eka Puji
JHP17 (Jurnal Hasil Penelitian) Vol 1 No 02 (2016)
Publisher : Lembaga Penelitian Dan Pengabdian Kepada Masyarakat Universitas 17 Agustus 1945 Surabaya

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Abstract

An electroless plating process that does not use electric current in the coating process. Coatings that occurs due to the reaction of reduction and oxidation of [ermukaan objects, thus forming a layer of metal derived from the metal salt. Because it does not use an electric current in the electron exchange coating process happens more slowly. The purpose of this study is to see the reaction products formed on the surface of coal bottom ash results electroless plating which is affected by variations in the weight of aluminum and temperature oxidation by testing the SEM-EDX. Results of SEM-EDX will be the reaction products formed by using statistical software version PCPDF WIN 2:01. From the test results SEM-EDX with magnesium weight variation and temperature variation affects the oxidation Wt%-forming elements in it but does not affect the elements formed where for all specimens produce similar reactions, namely Aluminium Silicate Al2SiO5.Keywords: Composites, electroless plating, the reaction products formed
ANALISA PENGARUH VARIASI MEDIA PENDINGIN DAN WAKTU AGING PADA PERLAKUAN PANAS T6 TERHADAP STRUKTUR MIKRO KOMPOSIT ALUMINIUM ABU DASAR BATUBARA Susanto, Juli; Seputro, Harjo; Santoso, Edi
JHP17 (Jurnal Hasil Penelitian) Vol 1 No 02 (2016)
Publisher : Lembaga Penelitian Dan Pengabdian Kepada Masyarakat Universitas 17 Agustus 1945 Surabaya

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Abstract

 Aluminium is a metal which has a mild nature, corrosion resistance, and electrical conductors that are used as matiks. Bottom ash coal used for reinforcement which is useful for producing aluminum composite with excellent mechanical properties and low cost. Besides the mechanical properties of aluminum can be enhanced by the addition of alloying elements (alloying) and the heat treatment process (heat tretment). The purpose of research is a comparative changes in microstructure before and after T6 heat treatment. This research will look at the changes in the microstructure of aluminum composite bottom ash coal that have undergone a process of T6 heat treatment that includes, (solid solution) is done at a temperature of 540 °C with a holding time of 6 hours, (quenching) with media cooling water, salt water (brine), oil, and (aging) with aging time of 2 hours, 4 hours, and 6 hours at a temperature of 180 °C From the results of tests performed on the aluminum composite material coal bottom ash, before and after T6 heat treatment process shows that. Granules greatest average diameter of the grain is shown by the media granules with salt water cooling 6-hour holding time for 165,3pm, and the smallest is 95,58pm with water cooling media holding time 6 hours, while aluminum composite granules of coal bottom ash without treatment equal to 158.4 pmKeywords: aluminum, coal bottom ash, heat treatment, quenching, aging, microstructure
Intensitas Curah Hujan Memicu Tanah Longsor Dangkal di Desa Wonodadi Kulon Gede Satya; Aris Heri Andriawan; Ahmad Ridho'i; Harjo Seputro
JPM17: Jurnal Pengabdian Masyarakat Vol 1 No 01 (2014)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30996/jpm17.v1i01.355

Abstract

Abstract. Almost every year during the rainy season, landslides continue to haunt the villagers Wonodadi Kulon Ngadirojo Pacitan. Biggest landslides occurred in the past 2009 years. At least, dozens of houses were severely damaged, at least 13 cows are victims and impaired access road connecting the village to the other. Within four (4) years after the great disaster, there has been no attempt to anticipate or prevent the occurrence of landslides. Wonodadi Kulon village at an altitude of 80-500 meters above sea level to be exact in South Kendeng Mountains about 55 miles from downtown Pacitan. Its area is hilly with a slope of 68 degrees. From the survey conducted disaster seems to be increasingly threatened due to changes in land use that was originally in the form of community forest turned into farmland. Land use as agricultural land utilize a relatively steep slope, so that erosion will often occur in the form of erosion gully and soil mass movement (landslides). Erosion at this next level causing a big impact for environmental damage, such as flash floods. Public knowledge about forest conservation and water resources is still low proven that many people who are looking for firewood in the forest. Data from the local village administration mentioned critical land area of 102 hectares land area of 309.30 ha mild erosion; a land area of 410.53 ha of erosion was severe erosion and a land area of 10 ha.Keywords: disaster, landslide
Penerapan Teknologi Tepat Guna Bagi Kelompok Usaha Kecil Jamu Tradisional di Kecamatan Sampang Madura Siti Mujanah; Achmad Maqsudi; Harjo Seputro
JPM17: Jurnal Pengabdian Masyarakat Vol 1 No 01 (2014)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30996/jpm17.v1i01.356

Abstract

Abstract. The market opportunities of herb medicine in Indonesia is quite widespread both for domestic needs and for export. Domestic demand for herb medicine was increased each year. This mean that the opportunities to develop the household or small scale herb industries in Indonesia are needed, one of the most popular place of herb medicine in Indonesia is Madura Island, especially in this present the local government of Sampang District concern to develop the Central of Herb Medicine in Jl Pahlawan, and they called “Herb Medicine Putri Pahlawan Cluster. According to our survey we found that they have several problems in management such as marketing, financial and technology, therefore we over the management training to the members of cluster and make a machine or applied technology for producing in the bigger volume ofproduction. Keywords: Applied Technologi, Marketing Management and Finacial management
OPTIMALISASI PJU LED SOLAR CELL UNTUK PENINGKATAN PRODUKTIVITAS EKONOMI KREATIF DI DESA MINGGIRSARI, KECAMATAN KANIGORO, KABUPATEN BLITAR Aris Heri Andriawan; Harjo Seputro; Dheny Jatmiko; Abraham Fery Rosando; Dwi Harini Sulistyowati
JPM17: Jurnal Pengabdian Masyarakat Vol 7 No 1 (2022)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30996/jpm17.v7i1.6036

Abstract

Mengembangkan diri menjadi desa ekonomi kreatif. Desa ini telah memiliki laboratorium pusat studi ekonomi kreatif dan pariwisata Jawa Timur hasil dari kegiatan penelitian dan pengbadian civitas akedemika Universitas 17 Agustus 1945 Surabaya. Dalam upaya pengembangan ekonomi kreatif insfrastruktur pendukung, salah satunya adalah lampu penerangan. Untuk menyelesaikan persoalan tersebut, maka akan dilakukan pengabdian masyarakat dengan kegiatan optimalisasi PJU LED Solar Cell untuk peningkatan produktivitas ekonomi kreatif Minggirsari, Kanigoro, Kabupaten Blitar. Kegiatan pengabdian ini merupakan implementasi dari kegiatan peneltian yang telah dilakukan sebelumnya. Kegiatan pengabdian ini diharapkan memberikan manfaat bagi masyarakat Desa Minggirsari secara umum, pelaku ekonomi kreatif secara khusus, dan Pemerintah Desa Minggirsari secara spesifik. Manfaat yang diharapkan adalah adanya peningkatan produktivitas ekonomi kreatif di Desa Minggirsari sehingga nantinya dapat meningkatkan pertumbuhan ekonmi Desa Minggirsari.Kata kunci: PJU, Solar Cell, Ekonomi Kreatif, Minggirsari. 
PENINGKATAN KETRAMPILAN MASYARAKAT DESA PAPUNGAN MELALUI PELATIHAN DIVERSIVIKASI OLAHAN PANGAN BERBAHAN BAKU IKAN Rini Rahayu Sihmawati; Tiurma Wiliana Susanti Panjaitan; Wardah Wardah; Harjo Seputro
ABDIMAS Vol 2 No 06 (2022): PEMBERDAYAAN MASYARAKAT
Publisher : COMMUNITY OF RESEARCH LABORATORY SURABAYA

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Abstract

Desa Papungan Kecamatan Kanigoro Kabupaten Blitar merupakan desa yang memiliki ikan yang khas yaitu ikan mujair. Ikan mujair oleh masyarakat biasanya hanya dikonsumsi dengan cara digoreng atau dibakar saja. Karakteristik ikan yang mudah membusuk menyebabkan masyarakat harus segera menjual hasilnya dalam keadaan hidup atau segar saat dipanen. Keadaan tersebut dapat diatasi dengan melakukan proses pengolahan hasil ikan yang berlebih agar daya awetnya meningkat. Dalam usaha meningkatkan daya awet dan meningkatkan pendapatan, kendala yang dihadapi masyarakat adalah rendahnya pengetahuan dan ketrampilan dalam mengolah pangan asal ikan, terutama ikan mujair. Tujuan dari pengabdian masyarakat ini adalah untuk memberikan pelatihan dan pendampingan kepada masyarakat yang membudidayakan ikan Mujair agar bisa mengolah hasil ikan menjadi produk lain yang mudah dilakukan serta diminati masyarakat. Metode yang digunakan dalam pengabdian ini adalah memberikan pelatihan dan pendampingan pengolahan ikan menjadi abon ikan dan ikan krispi. Hasil dari pengabdian masyarakat ini adalah memfasilitasi teknologi tepat guna berupa peralatan serta pelatihan dan pendampingan sehingga dapat meningkatkan ketrampilan serta pendapatan masyarakat desa Papungan, khususnya masyarakat pembudidaya ikan mujair.
Corrosion Performance of a Novel Aluminium 6061-Sea Sand Composite Under Electrochemical Method Surojo, Eko; Triyono, Teguh; Akbar, Hammar Ilham; Pramudi, Ganjar; Triyono; Raharjo, Wijang W.; Agiel, Raiddin Muhamad; Majid, Faishal M.; Seputro, Harjo; Habibi, Ilham
Emerging Science Journal Vol. 9 No. 5 (2025): October
Publisher : Ital Publication

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28991/ESJ-2025-09-05-012

Abstract

The need for lightweight materials is increasing from year to year. In its application, lightweight and strong materials also need to be corrosion resistant. Corrosion resistance is an important property in automotive, especially in high humidity areas. Al6061-Sea sand material is a novel material that meets the mechanical standards required in the automotive sector. A previous study of Al 6061-sea sand conducted the mechanical properties of the composite. This current research focuses on the development of Al 6061 material with variations in weight fraction of sea sand reinforcement against the corrosion rate under the potentiodynamic method to determine the corrosion resistance of the composite material. The composite fabrication uses the electroless coating method on sea sand and the stir casting method with a melting temperature of 750°C. The agitation process used a four-bladed impeller for 10 minutes at 600 rpm with a stirring depth of ½ of the height of the molten metal. The tests include density testing, microstructure observation, and corrosion rate under the potentiodynamic method using an electrochemical potentiostat. The test result obtained the lowest corrosion rate results in 2% wt sea sand with a corrosion rate of 0.61875 mmpy. The increase in corrosion rate value is directly proportional to the addition of the weight fraction of sea sand.
Enhancing AA6061–Bottom Ash Composites: Role of Heat Treatment on Properties and Dimensional Stability Seputro, Harjo; Bintoro, Sefrian R.; Ariawan, Dody; Surojo, Eko; Triyono
Civil Engineering Journal Vol. 11 No. 11 (2025): November
Publisher : Salehan Institute of Higher Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28991/CEJ-2025-011-11-023

Abstract

Aluminum matrix composites (AMCs) reinforced with industrial by-products have attracted attention as lightweight, sustainable materials, yet most research has focused on fly ash. The higher density of bottom ash compared to fly ash makes bottom ash suitable for use as reinforcement in AMC. This study investigates the combined effect of BA reinforcement (0, 3, and 6 wt%) and T6 heat treatment (aging at 175, 200, and 225 °C) on the microstructure, mechanical performance, thermal expansion, and dimensional stability of AA6061 composites. Mechanical testing, thermomechanical analysis (TMA), and coordinate measuring machine (CMM) evaluations were conducted to establish correlations between microstructure and macroscopic reliability. The results show that aging plays a decisive role in strengthening and stabilizing the alloy. The unreinforced AA6061 achieved peak hardness (69.43 BHN) and tensile strength (274.60 MPa) at 200 °C, but exhibited the largest distortion due to high thermal expansion. BA addition significantly reduced the mean coefficient of thermal expansion, with the 3 wt% BA composite aged at 200 °C demonstrating the most balanced behavior: stable CTE response, minimal distortion (0.1–0.4 mm²), and improved mechanical reliability. In contrast, 6 wt% BA composites, despite their lowest mean CTE (≈25 ppm/K), suffered from local instabilities due to particle agglomeration and porosity, leading to reduced toughness and higher geometric irregularities. Overall, this work highlights the novelty of employing BA as a sustainable reinforcement distinct from fly ash, showing that moderate BA addition coupled with optimized heat treatment can enhance dimensional stability and mechanical performance. The findings provide new insights into the design of cost-effective, environmentally friendly AMCs for structural applications.
Co-Authors Abraham Fery Rosando Achmad Maqsudi Agiel, Raiddin Muhamad Ahmad Ridho'i Akbar, Hammar Ilham Amanuddin, Aris Arief Wijayanto Aris Heri Andriawan Aris Heri Andriawan Bintoro, Sefrian R. Dheny Jatmiko, Dheny Dody Ariawan Dwi Harini Sulistyowati Edi Santoso Eko Surojo Fanani, Ahmad Arif Gede Satya Hardianto, Dedik Saputro Himawan, Eka Puji Ilham Habibi, Ilham Ismail Ismail Majid, Faishal M. Mastuki , Mastuki Mastuki Mastuki Maula Nafi Nafi', Maula Pramudi, Ganjar Prasetio, Budi Raharjo, Wijang W. Ramadhan, Syaiful Alan Rini Rahayu Sihmawati Siti Mujanah Susanto, Juli Syamsiar, Syamsiar Teguh Triyono Tiurma Wiliana Susanti Panjaitan Triyono Wardah Yulianto, Adam Eko