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All Journal PROSIDING SEMINAR NASIONAL Traksi : Majalah Ilmiah Teknik Mesin EKSAKTA: Journal of Sciences and Data Analysis Jurnal Teknik Sipil Prosiding Seminar Nasional Sains Dan Teknologi Fakultas Teknik Jurnal Ilmiah Dinamika Rekayasa (DINAREK) JITEK (Jurnal Ilmiah Teknosains) Al-Wijdan : Journal of Islamic Education Studies Jurnal Pendidikan Matematika (Kudus) Reviews in Civil Engineering Jurnal DISPROTEK Jurnal Penelitian dan Pengabdian Kepada Masyarakat UNSIQ Jurnal Riset Teknologi Pencegahan Pencemaran Industri Media Komunikasi Dunia Ilmu Sipil (MoDuluS) International Journal of Engineering, Science and Information Technology DEVICE Jurnal Ilmiah Arsitektur Teknika Suluh: Jurnal Seni Desain Budaya Jurnal Teknik Sipil Jurnal Konstruksi dan Infrastruktur : Teknik Sipil dan Perencanaan Jurnal Basement : Jurnal Teknik Sipil Advance Sustainable Science, Engineering and Technology (ASSET) Journal of Green Science and Technology PASAK: Jurnal Teknik Sipil dan Bangunan Journal of Renewable Engineering
Qomaruddin, Mochammad
Program Studi Teknik Sipil, Fakutas Sains & Teknologi, Universitas Islam Nahdlatul Ulama
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Social Sciences Transportation Veterinary Other

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REVIEW PEMANFAATAN SAMPAH PLASTIK UNTUK ENERGI DAN BAHAN KONSTRUKSI Qomaruddin, Mochammad; Tristan, Alfian; Faqih, Nasyiin; Roehman, Fatchur; Mushthofa, Mushthofa
(JITEK)Jurnal Ilmiah Teknosains Vol 10, No 2/Nov (2024): Jitek
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/jitek.v10i2/Nov.20048

Abstract

The problem of plastic waste has become a global concern due to its negative impact on the environment. Plastic, as a non-biodegradable material, results in significant pollution of soil and water. As plastic production increases, efforts to find innovative solutions in reducing environmental impact are important. This article discusses the use of plastic waste as an alternative energy source and construction material. Using a liter-tour review method from various sources that explores the potential of plastics to be converted into energy as well as their use in building materials and as aggregates in concrete. The results of the analysis show that the use of plastic waste can not only reduce pollution, but also provide economic and social benefits, especially as fuel oil and building materials such as paving plastic, plastic aggregate, asphalt plastic mixture. 
Analisa Hubungan Grading Agregat Terhadap Kuat Tekan Dan Porositas Beton Porous Geopolimer Darmoko, Wahyu Setyo; Qomaruddin, Mochammad; Saputro, Yayan Adi; Rochmanto, Decky; Roehman, Fatchur; Faqih, Nasyiin
Jurnal Teknik Sipil Vol. 18 No. 1 (2025): Juni 2025
Publisher : Faculty Of Engineering University 17 August 1945 Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56444/g8nqmc61

Abstract

This research is an experimental study on porous concrete and the use of fly ash as a binder for concrete to analyze the effect of compressive strength and porosity. The research method used in this study is the experimental method which is a research method used to find the effect of certain treatments on concrete. In this research, the concrete mix design uses a ratio of gravel and geopolymer paste as a binder, namely 4: 1 and uses a molarity ratio of 10M with differences in grading of coarse aggregate using sieves number 4, 1/2 ", and 3/8". The optimum compressive strength value was obtained in mix design 1 using sieve gradation no.4 which was 4.25 MPa at 28 days old. While the results of the highest porosity value were found in mix design 1 which was 7.15% at 28 days old
Optimizing Annual Cropping Patterns Using A multi-objective Approach to Maximize Income and Minimize Soil Erosion Faqih, Nasyiin; Suripin, Suripin; Wulandari, Dyah Ari; Qomaruddin, Mochammad
International Journal of Engineering, Science and Information Technology Vol 5, No 3 (2025)
Publisher : Malikussaleh University, Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52088/ijesty.v5i3.923

Abstract

This research investigates planting strategies to optimize productivity and conserve soil, focusing on potatoes and onions grown on erosion-prone land. Cross planting versus perpendicular plantings is evaluated using the MOORA (Multi-Objective Optimization Based on Ratio Analysis) method based on erosion rates, crop productivity, and economic outcomes. Meanwhile, data from six experimental contour and perpendicular planting plots are analyzed. The measurements for sediment and runoff are carried out using a dual-bucket system. After erosion calculations, the highest erosion rate was found in the contour planting of shallots at 385,65 tons/ha/year. At the same time, Potatoes planted perpendicular to the contour lines resulted in the lowest erosion rate, at only 114.51 tons/ha/year. Economic analysis, considering crop productivity and financial outcomes, revealed the highest productivity for potatoes planted perpendicular to the contour at Rp. 26.891 kg/ha, and the highest Income for the contour planting of potatoes at Rp. 215.133.360/ha. Optimization using the MOORA method, which calculates minimal erosion (cost) and maximal Income (benefit), yielded the highest value for potatoes planted along the contour at 0.409963. This was followed by perpendicular planting (0.075816) and shallots along the contour (0.067163). The MOORA method can provide optimal planting pattern recommendations by analyzing multiple criteria, including soil erosion and productivity, thereby offering practical guidance to farmers and policymakers in making more economically viable and sustainable planting decisions.
Smart Cropping Pattern: A Systematic Study of Sustainable Agriculture Optimization Model Mushthofa, Mushthofa; Suripin, Suripin; Wulandari, Dyah Ari; Qomaruddin, Mochammad
International Journal of Engineering, Science and Information Technology Vol 5, No 3 (2025)
Publisher : Malikussaleh University, Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52088/ijesty.v5i3.1132

Abstract

Irrigated agriculture accounts for more than 40% of global food production despite covering only about 20% of the world's agricultural land. However, climate change, water constraints, and multisectoral pressures on natural resources demand greater efficiency in the management of agricultural systems. One key strategy is determining optimal cropping patterns under conditions of water and land constraints. This study aims to review mathematical approaches, especially Linear Programming (LP)-based optimization models, in developing efficient and sustainable cropping pattern strategies. This study was conducted through a systematic literature review of 185 scientific articles from the Scopus and ScienceDirect databases in the period 2014–2025. The analysis was carried out using the PRISMA method and visualization of research trends through VOS viewer software. The results of the review indicate that optimization models, especially Linear Programs, have been widely used to develop data-based land and water allocation strategies, considering agronomic, economic, and environmental aspects. The increasing number of publications in the last decade reflects the urgency of this theme and the shift towards quantitative-based decision-making in agricultural systems. This study provides a conceptual and applicative basis for the development of sustainable planting strategies that are adaptive to environmental changes.
Evaluasi Stabilitas Lereng Dengan Metode Limit Equilibrium pada Sungai Waridin Kurniawan, Andri; Wahyu Adhi, Bagas; Pamungkas, Hannung; Qomaruddin, Mochammad
Media Komunikasi Dunia Ilmu Sipil (MoDuluS) Vol 7 No 1 (2025): Juni 2025
Publisher : Universitas Veteran Bangun Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32585/modulus.v7i1.6699

Abstract

Rivers play an important role in improving the welfare and quality of life of the Indonesian people. In addition, rivers can also cause flooding. The Waridin River is one of the rivers in the Kendal regency area. Flooding is an event where inundation occurs in a flat area around the river due to the overflow of water that the river cannot accommodate. To overcome the flood problem, the addition of parapets and the normalization of the river were carried out. For this reason, it is necessary to analyze the slope stability of the Waridin river from the excisiting conditions, design and construction conditions by paying attention to 3 (three) modeling conditions. The method used in this analysis is the Limit Equilibrium method, which utilizes software, specifically Geostudio, through the SLOPE/W menu. The analysis was carried out on existing conditions, planning, and construction. This analysis was carried out under normal conditions, earthquakes, and rapids. The results of the existing analysis were obtained that in the condition of the combination of earthquakes, the slope stability was below the safe factor, namely 1.02 < 1.2. sendang in other conditions tends to be safe. In the planning analysis by combining normalization and the addition of parapets with a 3-meter mini pile foundation, the results of all analysis conditions exceeded the value of the safety factor. Because at the time of construction a landslide occurred, a back analysis was carried out where the results of the back analysis were added reinforcement to the foot of the river slope with a mini pile of 4 meters with a distance of 1 meter each associated with the frame beams. The analysis results obtained show that it is safe for all implementation conditions.
REDESIGN PEMBANGUNAN GEDUNG B TAHAP 1 RSUD HJ. ANNA LASMANAH BANJARNEGARA MENGGUNAKAN METODE BETON PRACETAK Faqih, Nasyiin; Purwati, Anika; Abdussalam, Ashal; Mushthofa, Mushthofa; Qomaruddin, Mochammad; Febrianty, Ruliana
Jurnal Penelitian dan Pengabdian Kepada Masyarakat UNSIQ Vol 11 No 2 (2024): Mei
Publisher : Lembaga Penelitian, Penerbitan dan Pengabdian Masyarakat (LP3M) UNSIQ

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32699/ppkm.v11i2.7147

Abstract

Seiring dengan terus meningkatnya perkembangan zaman populasi masyarakat juga ikut meningkat, ada beberapa masalah yang timbul di kota besar, salah satunya masalah kesehatan.. Dengan fasilitas yang sudah ada pada gedung lama (existing) kurang memadai, dalam hal ini Pihak RSUD terdorong untuk memberikan fasilitas yang lebih memadahi dengan dilakukannya pengadaan pembangunan gedung baru. Sebagai Studi Perencanaan pada Penelitian ini menggunakan metode beton pracetak.. Perencanaan merujuk pada pedoman yang berlaku di Indonesia yaitu SNI 03-1727-2020, SNI 1726-2019, SNI 2847-2019. Metodologi penelitian yang saya gunakan diawali dari tahap persiapan, pengumpulan data, menentukan desain bangunan dan pembebanan, Penentuan dimensi struktur, Analisa momen dengan menggunakan program SAP2000 v.14, pembuatan Gambar kerja perhitungan RAB struktur, dan diakhiri dengan Pembuatan Rencana Schedule.
Effectiveness of Absorption Wells Using The Sunjoto Method to Control Flooding in The Village of Ngraseh Bojonegoro Mushthofa, Mushthofa; Fadhila, Fajrina Nur; Indriani, Yulia; Faqih, Nasyiin; Qomaruddin, Mochammad
Journal of Green Science and Technology Vol 8 No 1 (2024): Journal of Green Science and Technology Vol.8 No.1 March 2024
Publisher : Faculty of Engineering, Universitas Swadaya Gunung Jati

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33603/jgst.v8i1.133

Abstract

Infiltration wells are a form of hydrological infrastructure used to manage rainwater. Infiltration wells are usually built as part of a rainwater management system to soak rainwater into the ground and reduce surface waterlogging as well as slow down surface runoff and allow rainwater to seep into the ground to renew aquifers or prevent waterlogging. Maintaining groundwater levels is an important step in sustainable water resource management. The aim of this research is to plan effective infiltration wells to replace rainwater catchment areas lost due to building construction. The planning of this infiltration well uses the Sunjoto  method. From the research results, it was found that an effective infiltration well design was calculated using the Sunjoto  method. With the data, each roof area of ​​the house has an optimum number of infiltration wells with a planned infiltration well diameter of 1 m with a depth of 2.5 m with an effective depth according to the calculations is as follows: 60 m2 number of 1 unit of absorption well with an optimum depth of 2.82 m, 80 m2 number of 2 units of absorption well with an optimum depth of 3.76 m, 100 m2 number of 2 units of absorption well with an optimum depth of 4.7 m, 120 m2 number of 2 units of infiltration wells with an optimum depth of 5.64 m, 140 m2 number of 3 units of absorption wells with an optimum depth of 6.58 m, 160 m2 number of 3 units of absorption wells with an optimum depth of 7.52 m, 180 m2 number of 3 units of absorption wells with an optimum depth of 8.46 m, 200 m2 total of 4 units of infiltration wells with  an  optimum depth  of 9.4 m.
Characteristics of The New Material Geopolymer Binder Course Fly Ash and Bottom Ash Saputro, Yayan Adi; Ariyanto, Ariyanto; Qomaruddin, Mochammad
Journal of Green Science and Technology Vol 7 No 2 (2023): JOURNAL OF GREEN SCIENCE AND TECHNOLOGY VOL.7 NO.2 SEPTEMBER 2023
Publisher : Faculty of Engineering, Universitas Swadaya Gunung Jati

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33603/jgst.v7i2.24

Abstract

Selection of concrete specifications is something that must be done according to needs. The use of concrete as a building material is efficiency and effectiveness in terms of processing and supply. The increase in fly ash and bottom ash waste will affect new innovations for new materials in construction. The purpose of this study was to determine the characteristics of the new material geopolymer binder course fly waste and bottom ash whether it complies with standards and is suitable for use as a construction material or for making roads. This research was carried out experimentally in the laboratory to check whether the characteristics of the material used met the standards or not. The results obtained were that the best mixture for the new material was between (FA+BA) with a compressive strength of 5.15 MPa and (FA+PS) with a compressive strength of 25.6 MPa at 28 days old with a mixture composition of 1 : 1.5. As for the mixed wear value (FA+BA) has a wear value of 76% while (FA+PS) has 39% wear. The new material resulting from the wear level can be used as a base course material.
ANALYSIS OF MAPPING OF THE LEVEL OF FLOOD PRONECTION IN BOJONEGORO REGENCY BASED ON GEOGRAPHIC INFORMATION SYSTEM Mushthofa, Mushthofa; Qomaruddin, Mochammad
Journal of Green Science and Technology Vol 7 No 1 (2023): JOURNAL OF GREEN SCIENCE AND TECHNOLOGY VOL.7 NO.1 MARET 2023
Publisher : Faculty of Engineering, Universitas Swadaya Gunung Jati

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33603/jgst.v7i1.13

Abstract

Floods are natural disasters that often occur in various parts of the world, especially in flood-prone areas. Floods occur when water from rivers, lakes or seas overflows beyond its holding capacity. Floods can cause great damage to infrastructure, plants, animals and people. To overcome floods that occur frequently every year, it is necessary to map areas prone to flooding accurately and quickly using GIS which can be used to accurately monitor the location and area of ​​the area that is experiencing flooding. This study aims to analyze flood-prone areas and compile maps of flood-prone areas and describe the conditions of flood-prone areas in Bojonegoro Regency based on Geographic Information Systems (GIS). Data processed using GIS include: RBI Map of Bojonegoro Regency, River Map, Soil Type Map, Rainfall Data, Landsat Imagery Data, Flood incident data in Bojonegoro Regency. From the results of data processing, the results of the analysis are as follows: The level of flood-prone areas in Bojonegoro Regency is divided into 3 classes, namely: very vulnerable class of 49,963.671 Ha or around 21.66% of the sub-districts in Bojonegoro including the District: Margomulyo , Ngraho, Padangan, Kasiman, Malo, Purwosari, Trucuk, Kalitidu, Ngasem, Bojonegoro, Kapas, Dander, Balen, Kanor, Baureno, Sumberrejo, Kepohbaru and Gondang. The vulnerable class of 173,162.171 Ha or around 75.05% is in sub-districts including: Margomulyo, Ngraho, Tambakrejo, Kedewan District, Malo, Trucuk, Sekar, Ngambon, Ngasem, Gondang, Bubulan, Dander, Temayang, Sugihwaras and Kedungadem. The non-prone class is 7,580.157 ha or 3.29% in the sub-districts including: Margomulyo, Ngraho, Tambakrejo, Kedewan, Malo, Trucuk, Sekar, Ngambon, Gondang, Temayang, Sugihwaras and Kedungadem. Areas that have a high level of vulnerability are around the Bengawan Solo River which crosses Bojonegoro Regency. This can be caused because the area around the Bengawan Solo River has a height of <25 m and frequent flooding from the upstream and tributaries of the Bengawan Solo River.
The Effect of Aggregate Gradation Variation on Mechanical Performance and Porosity of Porous Geopolymer Concrete Saputro, Yayan Adi; Qomaruddin, Mochammad; Budianta, Tarsisius Dwi Wibawa
Journal of Green Science and Technology Vol 9 No 1 (2025): Journal of Green Science and Technology Vol. 9 No. 1 March 2025
Publisher : Faculty of Engineering, Universitas Swadaya Gunung Jati

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33603/jgst.v9i1.9940

Abstract

Porous geopolymer concrete has gained attention as a sustainable and environmentally friendly alternative to conventional Portland cement-based concrete, utilizing industrial waste such as fly ash. This study investigates the effect of aggregate gradation variations on the mechanical properties, porosity, and sustainability of fly ash-based porous geopolymer concrete. The experimental method was employed, utilizing fly ash as the primary binder, sodium hydroxide (NaOH) as the activator, and coarse aggregates of varying sizes (3/8", 1/2", and 3/4"). The concrete samples were tested for compressive strength and porosity at 7, 14, and 28 days following ASTM standards. The results indicate that aggregate gradation significantly influences the mechanical properties, porosity, and sustainability of geopolymer concrete. Smaller aggregate sizes (3/8") produced higher compressive strength (5.42 MPa at 28 days) but lower porosity, while larger aggregates (3/4") increased porosity but reduced compressive strength. Additionally, the study confirms that geopolymer concrete using fly ash as a binder meets the standard requirements for setting time, specific gravity, and durability. These findings contribute to optimizing porous geopolymer concrete for sustainable construction applications, particularly in drainage and permeable pavement systems, promoting waste utilization and environmental sustainability.  Keyword: Porous geopolymer concrete, fly ash, , porosity, waste, sustainability
Co-Authors Abda Rizka Nabella Abdussalam, Ashal Adib, Muhammad Ahmad , Arrisal Khoirudin Ahmad Alfin Ahmad Muzaki Ahmad Muzaki Ainis Safaah Akhmad Firdos Khoiril Khitam Alfin, Ahmad ANDRI KURNIAWAN Arie Irvanto Adhi Saputra ARIF HIDAYAT Ariyanto Ariyanto Ariyanto Ariyanto Ariyanto Ashal Abdussalam Bobby Rio Darmoko, Wahyu Setyo Decky Rochmanto Decky Rochmanto, Decky Dian Chandrasasi Dian Eko Santoso Dina Limbong Pamuttu Dina Pasa Lolo Dyah Ari Wulandari Fadhila, Fajrina Nur Fakhriyan, Adi Noor Faqih, Nasyiin Fatchur Roehman Fatimatuz Zahro Febrianty, Ruliana FERI FIRMAN Ferdiasah Hairulla Han Ay Lie Han Ay Lie Hermawan Hermawan Irene Sitohang Istianah Istianah Istianah Istianah Jamil, Alvian Nur Kharianto, Aan khoiru nisa Khotibul Umam Khotibul Umam Khotibul Umam Luqman Hakim Maemonah, Maemonah Maria Yekiana Mulyahati Maulana Anwar Safi’i Muh. Akbar Mushthofa Nabella, Abda Rizka Nastain Nasyiin Faqih Nasyiin Faqih Nasyiin Faqih Nor Hidayati Novita Sari Nunuk Sulistyaningrum Suprapto Nur Khanifah Pamungkas, Hannung Prasetya, Blinka Hernawan Pratama, Andrie Mandala Yudha Purwanto Purwanto Purwanto Purwanto Purwati, Anika Rendy, Oktarisa Aviska Rifa'i, Ahmad Suzaki Roesdina, Tira S. Suripin Saputro, ST., MT., Yayan Adi Saputro, Yayan Adi Sena Mahendra Sholeh Fandi Hendriyono Silva Keiza Sahelangi Silviana Ika Ariyani Sitohang, Irene Sri Tudjono Sudarno Sudarno Sudarno Sudarno Sudarno Sudarno Suprapto, Nunuk Sulistyaningrum surya aninda Tarsisius Dwi Wibawa Budianta Tira Roesdiana Tri Hanafiah Munawaroh Tri Hanafiah Munawaroh Tristan, Alfian Ulumudin, Fadhilah Ilham Umam, Sohibul Victor Victor wahyu adhi, Bagas WICAKSONO, ADI Windiya Lista Putri Yayan Adi Saputro Yulia Indriani Yulita Arni Priastiwi Zulfahmi, Rifqi Iqbal Zuli Rubiatin Zurfa Isnaini