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All Journal PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat International Journal of Research in Vocational Studies (IJRVOCAS) DEVOTE: Jurnal Pengabdian Masyarakat Global Journal of Research and Inovation in Civil Engineering as Applied Science Retensi
ikhwan Arief Purnama
Politeknik Negeri Pontianak
Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Public Health Social Sciences Transportation Other

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Pemanfaatan Limbah Bauksit (Tailing Bauxite) Sebagai Bahan Pengganti Agregat Halus Terhadap Kuat Tekan, Kuat Tarik Belah, dan Modulus Elastisitas Pada Beton Rabihati, Etty; Purnama, Ikhwan Arief; Adjie, Muhammad Syafri; Rachmawan, Valdi Dwi
RETENSI Vol. 1 No. 1 (2020): Retensi
Publisher : Jurusan Teknik Sipil Polnep

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31573/retensi.v1i1.232

Abstract

Until now, bauxite waste (bauxite tailings) has not been utilized in its entirety, causing an increase in the amount of waste in the bauxite producing areas. The percentage between the bauxite produced and the amount of waste produced is 50%: 50%. This research was conducted to see whether or not the use of liquid waste (tailings bauxite) is appropriate as a place for fine aggregate in the manufacture of concrete. This study used an experimental method with the replacement of the concrete mixture, namely sand with bauxite waste (bauxite tailings) with the proportion of bauxite waste (bauxite tailings) of 2.5%, 5%, and 7.5%. The tests carried out were compressive strength testing, split tensile strength testing, and modulus of elasticity. The results of the test for the highest compressive strength average age of 7 days were found in normal concrete with an average compressive strength of 21.58 MPa. The average compressive strength of 28 days was 7.5% bauxite waste concrete with an average compressive strength of 32.07 MPa. The tensile strength of 7 days was in bauxite waste concrete at 7.5% with a split tensile strength of 2.90 Mpa. The tensile strength of 28 days was in bauxite waste concrete 7.5% with a split tensile strength of 3.26 Mpa. The highest average modulus of elasticity is found in 7.5% bauxite waste concrete with a yield of 26607.03 Mpa, Keywords: Bauxite Waste (Tailing Bauxite), Compressive Strength, Modulus of Elasticity, Split Tensile Strength
KARAKTERISASI SIFAT FISIK DAN MEKANIK TANAH TIMBUNAN BABALESI YANG BERDASAR DARI LIMBAH BAUKSIT DAN BAKTERI PROBIOTIK: KARAKTERISASI SIFAT FISIK DAN MEKANIK TANAH TIMBUNAN BABALESI YANG BERDASAR DARI LIMBAH BAUKSIT DAN BAKTERI PROBIOTIK marini, lelly; Hariyani, susi; Purnama, Ikhwan Arief
RETENSI Vol. 2 No. 1 (2021): Retensi
Publisher : Jurusan Teknik Sipil Polnep

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31573/retensi.v2i1.405

Abstract

Bauxite waste in the form of red mud is known as waste could pollute water and soil in theenvironment around the mining area and endanger public health if not given advance prevention. Bythe increasing amount of waste and the growing amount of bauxite production, this problem becomeimportant issue for the mining sector, the government and the surrounding public directly affected.Utilization on a large scale and environmentally friendly are the points in this bauxite waste solution.The Babalesi landfill for road construction is a consideration in utilizing bauxite waste by usingprobiotic bacteria as a modifier. The feasibility and potential testing of Babalesi soil is carried out byphysical and mechanical tests of the soil based on ASTM Standards. These tests produce parametersthat refer to the AASHTO and USCS Classifications to determine the requirements for embankment2soil. For the physical test in the initial test of the red mud condition, the parameters indicated the A-7-6 classification, namely clay with poor quality. Furthermore, the physical test on Babalesi soilshowed A-4 classification, namely silt soil with medium quality. Meanwhile, the mechanical test forboth conditions, namely the original red mud condition and the Babalesi soil condition, could not becarried out because even in dry conditions, Babalesi soil proved to be very hard, but if it was inwatery conditions as a procedure in the mechanical test, it could not be formed and the mechanicalparameters could not be measured. The results of the physical test concluded that Babalesi landfillmeet the requirements and could be recommended as a road construction embankment. Themanufacture of Babalesi soil could be carried out directly in the waste pond by layered way usingheavy equipment as a stirrer of bacterial solution and bauxite waste.
Tinjauan Waktu Dan Biaya Menggunakan Metode Crashing Dengan Sistem Shift Tenaga Kerja: Tinjauan Waktu Dan Biaya Menggunakan Metode Crashing Dengan Sistem Shift Tenaga Kerja Maulidyah, Maulidyah; rizkiyah, sri; Arena, Azza; Purnama, Ikhwan Arief
RETENSI Vol. 3 No. 1 (2022): Retensi
Publisher : Jurusan Teknik Sipil Polnep

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31573/retensi.v3i1.502

Abstract

Pada saat membangun proyek gedung, keterlambatan pekerjaan proyek sering terjadi saat dilaksanakan. Jadi dibutuhkan alternatif yang dapat membantu menyelesaikan proyek konstruksi lebih cepat salah satunya dengan menggunakan metode shift tenaga kerja. Penelitian ini menganalisis percepatan periode menggunakan shift tenaga kerja pada proyek konstruksi gedung SMAN 4 Kota Pontianak Kalimantan Barat. Total anggaran biaya proyek pada kondisi pasca-crashing dengan sistem shift tenga kerja dengan total biaya Rp2.731.667.460,24 lebih tinggi dari total anggaran proyek dalam kondisi normal yaitu Rp. 2.222.022.510,48, dan periode pelaksanaan proyek 77 hari lebih cepat dari periode normal dari 180 hari pada durasi normal Dapat disimpulkan bahwa penerapan sistem shift lebih efektif dalam durasi karena lebih cepat dari rencana durasi normal. Menjadi efektif dan efisien dalam proyek konstruksi sangat penting karena ada banyak mekanisme kerja yang saling mempengaruhi seperti biaya, waktu, sumber daya manusia, sistem manajemen kesehatan dan keselamatan kerja (SMK3) untuk identifikasi resiko yang kemungkinan terjadi dalam proyek konstruksi, dan manajemen komunikasi proyek sangat penting dalam konstruksi.
DESIGN OF 5 STORIES REINFORCED CONCRETE STRUCTURE DATA CENTER BUILDING IN SOUTH PONTIANAK SUB-DISTRIC: PERANCANGAN STRUKTUR BETON BERTULANG 5 LANTAI PADA BANGUNAN GEDUNG DATA CENTER DI KECAMATAN PONTIANAK SELATAN Kurniawan, Farhan; Purnama, Ikhwan Arief; GINTING, RAFANI; Irpan, Muhammad
RETENSI Vol. 3 No. 2 (2023): Retensi
Publisher : Jurusan Teknik Sipil Polnep

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31573/retensi.v3i2.605

Abstract

The demand for supporting facilities in the advancement of information technology, specifically in Pontianak City, is increasing, a building that is suitable, strong, and earthquake resistant is needed as an effort to support the sustainability of centralized information technology infrastructure. The design of the data center also used a hebel brick as a wall to reduce the dead load of the building. The entire structure uses reinforced concrete structures in soft soil conditions (SE) with a intermediate moment frame system (IMF) that refers to SNI 2847-2019, also takes into the calculation of seismic aspects according to SNI 1726-2019 with the spectrum response method. The serviceability of this building is estimated according to the service load of office buildings and computer rooms based on SNI 1727-2020. This 5-storey building is modeled and structural analysis using the SAP2000 program, as well to 2D detail engineering design using the AutoCAD 2020 program, has a site area of 980 m². The strength of the foundation structure is based on Cone Penetration Test on Purnama street. All structural components use concrete strength fc' 30 MPa and steel strength 400 MPa. The design results thick deck plate 150 mm and floor/stair/step plate 120 mm, prymary beam and sloof B1 with dimensions 300×600 mm, secondary beam B2 with dimensions 250×500mm, secondary beam B3 with dimensions 150×300mm, primary column K1 with dimensions 600×600 mm, column K2 with dimensions 350×350mm, fondation pilecap P1 with dimensions 3100×3100×700mm, fondation pilecap P2 with dimensions 5100×1800×700mm, fondation pilecap P3 with dimensions 700×700×500mm with bearing capacity of square pile dimensions 350×350mm with length of 24m. Keywords: Building, Data center, Structure, Reinforced concrete, IMF
Pelatihan Auto Level untuk Survei Lokasi pada SMKN 4 SPP Singkawang: Auto Level Training for Location Survey at SMKN 4 SPP Singkawang Anggraini, Irene; Hafiyyan, Qalbi; Rabihati, Etty; Ryanti, Eva; Muhtadi, Ahmad; Purnama, Ikhwan Arief; Setiawan, Randy; Rizal, Rizal; Sasongko, Hartanto Wahyu; Perangin Angin, Imanuel Kemenangenta
PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat Vol. 10 No. 1 (2025): PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat
Publisher : Institute for Research and Community Services Universitas Muhammadiyah Palangkaraya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33084/pengabdianmu.v10i1.8393

Abstract

SMKN 4 SPP Singkawang is one of the vocational schools that provides education with a focus on agriculture and agribusiness. The purpose of providing education at this school is to produce graduates who are skilled in agriculture. One of the important skills to have in agriculture is topographic surveying. For this reason, students at school are expected to have these skills. These skills can later be used to support various activities in agriculture, such as irrigation planning and determining plant types based on topographic conditions. Topographic surveys can be carried out effectively and efficiently using optical tools such as auto levels. Based on this, Community Service (PKM) activities in the form of auto level training were carried out by students at SMKN 4 SPP Singkawang. The purpose of this training is for students to be able to use auto levels in mapping land contours for agricultural and agribusiness purposes. The training began by providing an explanation of the optical tools that would be used for the survey. The next stage is for students to practice using the optical tools accompanied by the Community Service (PKM) team. The result of this training is that students are able to understand and practice measuring land contours using auto levels. Finally, this training is expected to improve the skills of students of SMKN 4 SPP Singkawang, which will later be able to support various activities in the fields of agriculture and agribusiness, such as irrigation planning, determining plant types, and so on.
Analysis of Concrete Compressive Strength by Adding Plastic Waste as an Additional Material Mixed in Cement for Manufacturing Pavling Blocks Anggraini, Irene; Purnama, Ikhwan Arief; Hafiyyan, Qalbi
International Journal of Research in Vocational Studies (IJRVOCAS) Vol. 5 No. 1 (2025): IJRVOCAS - April
Publisher : Yayasan Ghalih Pelopor Pendidikan (Ghalih Foundation)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/ijrvocas.v5i1.334

Abstract

In daily life, plastic waste feels very close to us as humans. This type of waste is very difficult to decompose,which significantly disrupts both life on land and in the ocean. In this study, the use of heated plastic waste as an additive incement mixtures for making paving blocks is still rarely explored. The aim of this research is to examine the impact of usingplastic waste as an additive in cement mixtures. Additionally, the use of plastic waste as an additive in cement is based on theidea that plastic waste can be transformed into something useful to reduce the troubling amount of plastic waste. For this purpose,this study employs both the Literature Review Method and the Experimental Method to determine how the addition of plasticwaste in paving block mixtures affects the compressive strength of the paving blocks. In this study, plastic waste will be used asan additive to cement with the following compositions: 0% (ordinary concrete), 2.5%, 5%, and 7% of the cement weight. Theresults showed that paving blocks with a 2.5% plastic mixture achieved the highest compressive strength of 26.2 MPa at 21 days,while the highest water absorption was observed in the 5% plastic mixture, with a value of approximately 6.14%. Overall, thetotal strength exceeded the planned compressive strength of 20 MPa based on the SNI 03-0691-1996 standard, making it suitablefor road use with a B quality grade.
PERANCANGAN MANAJEMEN STRUKTUR PADA BANGUNAN GEDUNG 5 LANTAI SEKOLAH SD/SMP KRISTEN IMMANUEL KABUPATEN KUBU RAYA Syahwalitya Fahdila, Sucy; Eka Pratami, safitri; Syafriadi, syafriadi; Purnama, Ikhwan Arief
RETENSI Vol. 4 No. 2 (2024): Retensi
Publisher : Jurusan Teknik Sipil Polnep

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31573/retensi.v4i1.765

Abstract

Improving school building facilities and infrastructure is very necessary because of the rapid development in the world of education. Building planning is very influential because it will produce a building that meets the requirements of being sturdy, economical and aesthetic in order to avoid damage to the building. Construction management is a very appropriate solution for planning the needs of cost, quality, time, and human resources as well as Occupational Safety and Health (K3). In planning the management of the Immanuel Elementary/Junior High School Building, Kubu Raya Regency, an analysis of the working drawings used as the object of management planning is carried out first. So that a job description is obtained from the work drawing to analyze cost management, quality management, time management by making a Network Planning using the Critical Path Method (CPM), human resource management, and occupational health safety management. In this write, the author uses data sources in the form of primary data and secondary data. Primary data is in the form of working drawings and field documentation, while secondary data is in the form of 2020 Unit Price Analysis (AHS), work plans and requirements (RKS), laws/government regulations, and literature. Based on the processed data, the final results include the Draft Budget (RAB) of Rp. 13,751,000,000 , the duration of the work is 228 days, project quality management is made an analysis of the quantity of work in which there are specifications for each job in detail and in accordance with existing guidelines and in accordance with standards, Human Resources (HR) results in the highest number of workers a lot for reinforcement work as many as 88 people and at least on the work of installing bolts and anchors, installing 12mm plates and installing 16mm plates on the roof as many as 2 people. Occupational Health and Safety (K3) is the result of risk control and the need for personal protective equipment that is in accordance with standards and needs.
The Use of Expanded Polystyrene (EPS) Waste on the Compressive Strength of Concrete Using Fiber Reinforced Polymer (FRP) Rasendriya, Shafa; Effendi, Rizki; Setiawan, Randy; Purnama, Ikhwan Arief
International Journal of Research in Vocational Studies (IJRVOCAS) Vol. 5 No. 4 (2026): IJRVOCAS - Special Issues - Hybrid International Conference on Construction, Ma
Publisher : Yayasan Ghalih Pelopor Pendidikan (Ghalih Foundation)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/ijrvocas.v5i4.263

Abstract

The increase in restaurants and online food ordering can increase waste or waste made from Expanded Polystyrene (EPS).  Expanded Polystyrene (EPS) can be used as an additive to concrete because it has properties that are difficult to decompose naturally. Along with the development of the times, many innovations have sprung up in the world of construction to increase the strength of structures. The reinforcement of concrete is done by providing alternative materials that are quite popular, namely Fiber Reinforced Polymer (FRP). This study was conducted to determine the physical properties, mechanical properties of concrete, and the percentage of the use of the most optimum additives that will be applied to the foundation structure using additional materials in the form of Expanded Polystyrene (EPS) with variations of 0%, 1%, 1.5%, 2%, and 2.5% and a layer of Fiber Reinforced Polymer (FRP) as much as 1 layer which will be tested compressively, by looking at the effect of two types of water for curing, namely peat water and normal water with a planned concrete quality of 21.7 MPa using a cylindrical concrete mold 15 cm in diameter and 30 cm high. Concrete compressive strength tests were conducted at 7 days and 28 days of concrete age. Based on the test results, there is an increase in the highest water absorption of concrete, namely in the 28-day normal water immersion variation of 2% EPS + FRP by 4.05% The addition of Expanded Polystyrene (EPS) and Fiber Reinforced Polymer (FRP) in concrete can increase the highest concrete compressive strength, namely in the 7-day NORMAL water immersion variation 1.5% EPS + FRP by 27.54 MPa. While the highest concrete strength value in peat water immersion for 7 days of normal variation is 27.10 MPa.
Pengaruh Substitusi Agregat Kasar PET terhadap Kuat Tekan Beton Normal 7 Hari: Evaluasi Pengaruh Variasi Persentase PET terhadap Kuat Tekan Beton Normal 7 Hari Kurniawan, Pramudya; Purnama, Ikhwan Arief; Nugroho, Dimas; Ravika, Sri Wahyuni
Journal of Research and Inovation in Civil Engineering as Applied Science (RIGID) Vol 5 No 1 (2026)
Publisher : Teknik Sipil, Politeknik Negeri Ketapangg

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58466/mvffq463

Abstract

Polyethylene Terephthalate (PET) is a type of plastic waste that degrades very slowly and has the potential to cause environmental pollution. The use of PET as an artificial aggregate in concrete mixtures is an alternative to reduce dependence on natural aggregates while minimizing negative impacts on the environment. This study aims to evaluate the effect of coarse aggregate substitution using PET on the compressive strength of concrete at 7 days of age. Cylindrical test specimens measuring 15 × 30 cm were made with PET substitution variations of 0%, 5%, 10%, 15%, 20%, and 25%. Compressive strength testing was carried out at 7 days with a target compressive strength of 20 MPa. The test results showed a decrease in compressive strength as the PET substitution content increased. Normal concrete had an average compressive strength of 24.89 MPa, while 5% substitution resulted in 20.38 MPa and 10% substitution resulted in 17.39 MPa, which still met the planned compressive strength range. At 15% substitution, the compressive strength decreased to 16.10 MPa, at 20% to 14.80 MPa, and at 25% to 11.80 MPa. Based on these results, the use of PET as a partial replacement for coarse aggregate is considered effective up to a substitution limit of 5%–10%.
PEMBERDAYAAN MASYARAKAT DESA SUNGAI DURI II MELALUI SOSIALISASI PENGOLAHAN AIR SUNGAI MENGGUNAKAN METODE FILTERING BERJENJANG SEBAGAI SOLUSI AIR BERSIH DALAM MENGHADAPI PERUBAHAN IKLIM Rafani, Muhammad; Arianti, Iin; Fitriani, Nurul; Wattini, Wattini; Supardi, Iwan; Rabihati, Etty; Widhiastuti, Rahayu; Haris, Didik M Nur; Anggraini, Irene; Purnama, Ikhwan Arief
Devote: Jurnal Pengabdian Masyarakat Global Vol. 5 No. 1 (2026): Devote : Jurnal Pengabdian Masyarakat Global, Maret 2026 (In Press)
Publisher : LPPM Institut Pendidikan Nusantara Global

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55681/devote.v5i1.5753

Abstract

Sungai Duri II Village, Mempawah Regency, is facing serious challenges regarding access to clean water due to climate change, which has deteriorated river water quality. High turbidity and organic contamination have rendered river water unfit for consumption without treatment. This Community Service (PKM) activity aims to increase community independence through socialization and training on Tiered Filtering technology. The method used is Participatory Rural Appraisal (PRA) through education stages, filter assembly demonstrations, and technical assistance. The results of the activity showed a significant increase in community understanding (85%) and the availability of independent filter units at the household level. This technology is proven to reduce water turbidity visually and decrease the economic burden on residents for purchasing clean water, while also serving as a concrete adaptation step against the impacts of climate change in coastal areas. This activity successfully achieved its primary goal of socialising river water treatment using the Tiered Filtering method as a clean water solution for the people of Sungai Duri II village, as well as establishing sustainable collaboration between academics and local government/community. Questionnaire results indicated that 100% of participants stated this activity was beneficial for improving their understanding of simple yet effective clean water treatment systems. Participants expressed that the filter units are easy to use, the clean water produced is tangible, and they feel happy and satisfied with the program.
Co-Authors Adjie, Muhammad Syafri Ahmad Muhtadi Arena, Azza Didik M Nur Haris, Didik M Nur Dimas Nugroho Effendi, Rizki Eka Pratami, safitri Eva Ryanti Fitriani, Nurul GINTING, RAFANI Hafiyyan, Qalbi Hariyani, Susi Iin Arianti Irene anggraini Irpan, Muhammad Iwan Supardi Kurniawan, Farhan Kurniawan, Pramudya lelly marini Maulidyah, Maulidyah Perangin Angin, Imanuel Kemenangenta Rabihati, Etty Rachmawan, Valdi Dwi Rafani, Muhammad Rahayu Widhiastuti Randy Setiawan, Randy Rasendriya, Shafa Ravika, Sri Wahyuni Rizal Rizal rizkiyah, sri Sasongko, Hartanto Wahyu Syafriadi Syafriadi Syahwalitya Fahdila, Sucy Wattini, Wattini