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BANGUN REKAPRIMA
Published by Politeknik Negeri Semarang
ISSN : 24432709     EISSN : 25413899     DOI : http://dx.doi.org/10.32497/bangunrekaprima
Core Subject : Humanities, Education, Engineering,
Humanities Civil Engineering, Building, Construction & Architecture Education Engineering Other
Bangun Rekaprima: Jurnal Pengembangan Rekayasa, Sosial dan Humaniora as an information container that contains articles about the field of science consisting of results of research, literature review, review of books, journal reviews, popular scientific knowledge, results of translations, and other related texts. The articles of this journal are published every six months, that is on April and Oktober (2 issues per year), and published by Politeknik Negeri Semarang.
Arjuna Subject : Umum - Umum
Articles 241 Documents
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ANALISIS KERUSAKAN JALAN MENGGUNAKAN METODE IRI DAN RCI (STUDI KASUS RUAS JALAN KLANGON-TEMPEL) Gutama, Detha Sekar Langit Wahyu; Sutrisno, Widarto; Mustofa, Rizqi; Apriadin, Apriadin; Tommy, Nofry Wanly
Bangun Rekaprima Vol. 9 No. 2 (2023): Oktober 2023
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/bangunrekaprima.v9i2.5310

Abstract

Pentingnya jalan sebagai komponen krusial dalam sistem transportasi memungkinkan pergerakan manusia, barang, dan jasa di antara wilayah. Jalan yang baik adalah cermin dari pembangunan infrastruktur transportasi yang berkualitas. Namun, dengan meningkatnya lalu lintas kendaraan, sering kali jalan mengalami kerusakan. Untuk menangani masalah ini, diperlukan program penilaian kondisi jalan yang mampu menentukan jenis perawatan yang diperlukan. Dalam evaluasi ini, digunakan metode International Roughness Index (IRI) untuk mengukur tingkat ketidakrataan permukaan jalan dan Road Condition Index (RCI) untuk menilai tingkat kenyamanan berkendara atau performa jalan. Dari penggunaan aplikasi Roadlab Pro pada ruas jalan Klangon-Tempel STA 12+000 hingga 14+000, ditemukan bahwa kondisi jalan secara umum buruk. Nilai rata-rata IRI mencapai 6,16% untuk jalur kiri dan 6,76% untuk jalur kanan, menunjukkan bahwa permukaan jalan tidak rata dan bergelombang, yang bias mengakibatkan ketidaknyamanan bagi pengguna jalan. Melalui korelasi antara nilai IRI dan RCI, diperoleh nilai rata-rata RCI sebesar 6,35% untuk jalur kiri dan 5,91% untuk jalur kanan pada ruas jalan tersebut. Nilai-nilai RCI tersebut menunjukkan bahwa kondisi ruas jalan ini berada dalam tingkat pelayanan yang buruk. Oleh karena itu, diperlukan tindakan perawatan yang tepat guna meningkatkan kualitas jalan serta kenyamanan berkendara bagi pengguna jalan.
TEKNIK PEMERIKSAAN DAN PERBAIKAN INSTALASI PIPA GALVANIS Abdillah, Rifqi Aulia; Setiawan, Dedi Budi; Supriyo, Supriyo; Ariyanto, Arief Subakti; Pamungkas, Nur Setiaji
Bangun Rekaprima Vol. 10 No. 1 (2024): April 2024
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/bangunrekaprima.v10i1.5530

Abstract

The plumbing system must be able to anticipate pollution from outside, So damage to pipes must be minimized because if there is a leak in the pipe it will not only affect water distribution but can also cause the water to be contaminated with dirt. Research needs to be carried out regarding inspection methods and techniques for repairing leaks in pipe installations so that if the installation experiences a leak it can be repaired immediately. The method used in this research is an experimental method, namely modeling a water pipe installation that has a leak, then applying inspection techniques and repair techniques to the pipe installation. Based on water discharge measurements carried out during 1 minute of water flow in pipe installations in normal conditions with pipes experiencing leaks, there was a decrease in water discharge of 39.023 liters/minute. To find out the leak point, it is necessary to carry out a further inspection using a pipe leak listening device. The results of the inspection carried out three times with different people showed that the inspection results shifted from the leak point by a maximum of 10 mm. Based on the research results, it was found that a repair technique that can be applied to leaks in galvanized pipe installations is strengthening with pipe clamps capable of withstanding a pressure of 1.2 Mpa with an implementation cost of Rp. 277,500.00, and the welded reinforcement is able to withstand a pressure of 3.4 Mpa with an implementation cost of Rp. 463,458.00. So the inspection method of measuring flow and checking with a listening device can be applied to check leak points in pipe installations, while the most appropriate method for repairing leaks in galvanized pipe installations is to use pipe clamp reinforcement, because it obtains a compressive strength that meets the minimum pressure requirements in pipe installations. residential house and in terms of costs it is cheaper than using welding reinforcement techniques.
KAJIAN DAYA DUKUNG PONDASI BORED PILE BERDASARKAN DATA N-SPT, DATA RENCANA DAN PDA TEST (Studi Kasus : Pembangunan Jalan Tol Yogyakarta ”“ Bawen Seksi 1 Paket 1) Junaidi, Junaidi; Supriyadi, Supriyadi; Larasati, Novita; Utama, Clara Arnindhita Sekar Wira Satya
Bangun Rekaprima Vol. 10 No. 1 (2024): April 2024
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/bangunrekaprima.v10i1.5491

Abstract

The bored pile foundation work at the locations of Kali Konteng, Sangu Banyu, and Kali Mataram in the Yogyakarta - Bawen Toll Road Construction Project Section 1 Package 1 exhibits differences in planned and actual (field) load-bearing capacity values. The aim of this study is to analyze the load-bearing capacity values of bored piles. This research utilizes secondary data in the form of planning data, PDA test results, and N-SPT data. Load-bearing capacity calculations are conducted using a conventional method with the Reese & Wright formula. The research findings reveal that the ultimate load-bearing capacity of cast-in-place concrete bored piles calculated based on N-SPT data using the Reese & Wright 1977 method is 1918.08 tons at the Kali Konteng location, 1532.34 tons at the Sangu Banyu location, and 1416.34 tons at the Kali Mataram location. Meanwhile, the planned load-bearing capacity at the Kali Konteng location is 1312.5 tons, at the Sangu Banyu location is 1175 tons, and at the Kali Mataram location is 1300 tons. At the abutment locations of Kali Konteng and Sangu Banyu, the load-bearing capacity values based on the PDA Test exceed the planned load-bearing capacity values but are smaller than the load-bearing capacity values calculated using the Reese & Wright method. Conversely, at the abutment location of Kali Mataram, the load-bearing capacity value determined by the PDA Test exceeds both the planned load-bearing capacity value and the load-bearing capacity value calculated using the Reese & Wright method.
ANALISIS KUAT TEKAN GREEN CONCRETE FC 20 MPa MENGGUNAKAN BIJI PLASTIK PETE (POLYETHYLENE TEREPHTHALATE) Widyarini, Galih; Herdiarti, Etika; Azizah, Nur; Mukti, Galang Wicaksono
Bangun Rekaprima Vol. 10 No. 1 (2024): April 2024
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/bangunrekaprima.v10i1.5465

Abstract

Concrete is a building material consisting of a mixture of coarse aggregate, fine aggregate, cement, water and other additional materials (Firdaus, 2019). Concrete materials come from nature (gravel, sand and aggregate) which will eventually run out because they cannot be renewed. Therefore, the use of concrete materials needs to be innovated to become green concrete or environmentally friendly concrete. Environmentally friendly concrete is made using waste or comes from industrial waste materials. One of them is replacing aggregate with materials that do not damage the environment, such as Polyethylene Terephthalate (PETE) plastic pellets. PETE plastic pellets are a type of plastic material that has wrinkle-free fibers. This material is often used for packaging food and drinks such as bottles of soft drinks, mineral water and so on. The aim of this research is to determine the influence and trend of compressive strength of fc'20 MPa concrete on replacing some of the coarse aggregate with PETE (Polyethylene Terephthalate) plastic pellets varying 10%, 20% and 30%. The research method used was to make cylindrical test objects of each variation and then test them at the age of 7 days, 14 days and 28 days. The compressive strength test results for concrete variations of 10% PETE at 7 days, 14 days and 28 days were 21.84 MPa; 22.78 MPa and 24.35 MPa. In the concrete test variation of 20% PETE aged 7 days, 14 days and 28 days was 21.03 MPa; 22.09 MPa and 23.21 MPa. The compressive strength test for concrete variations of 30% PETE aged 7 days, 14 days and 28 days was 20.22 MPa; 20.71 MPa; and 20.95 MPa. These results show that the test object produces concrete compressive strength exceeding FC 20 MPa with an increasing trend from 7 days - 28 days.
ANALISA PENGARUH BATU PORI DAN KERTAS FILTER PADA PENGUJIAN TRIAXIAL TERHADAP LAJU DRAINASE Widoanindyawati, Vemi; Triwardaya, Triwardaya; Fatmawati, Leily; Parhadi, Parhadi; Suparman, Suparman; Wasino, Wasino
Bangun Rekaprima Vol. 10 No. 1 (2024): April 2024
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/bangunrekaprima.v10i1.5634

Abstract

Soil shear strength testing is a test required for analysis of soil bearing capacity, slope stability, and analysis related to retaining walls. One method of testing soil shear strength is to use a Triaxial tool. The Triaxial test equipment consists of a glass tube which is then filled with water as a pressure cell. Then it is connected to the drainage regulator inside and outside the test object. Failure of the test object is carried out by applying vertical stress to the test object until it collapses. From the Triaxial test, there are several parts that can influence the testing stage process. Among them are the stages of the drainage process, to speed up the rate of drainage, Triaxial test objects require pore stones and filter paper. The use of pro stone and filter paper is based on the type of porosity property. In this research, an analysis of the effectiveness of several types of pore stone will be carried out, including Kaolin dust and types for filter paper, including Whatman No. 54. The placement of pore stone is provided in two variations, including samples with one layer of pore stone and samples with two layers of pore stone. Meanwhile, the sample filter paper is modified by using one layer of filter paper, 2 layers of filter paper, and a drain strip around the sample.
Cover, Daftar Isi, Dari Redaksi Oktober 2023 Dari Redaksi, Cover Daftar Isi
Bangun Rekaprima Vol. 9 No. 2 (2023): Oktober 2023
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/bangunrekaprima.v9i2.5313

Abstract

Cover, Daftar Isi, Dari Redaksi edisi Oktober 2023
PENDAMPINGAN PEMBANGUNAN PONDASI JEMBATAN SEBAGAI AKSES PERUMAHAN PERMATA JANGLI TAHAP 2 Sulistiawati, Baiq Heny; Pangesti, Rendy Dwi; Supriyadi, Supriyadi; Fatmawati, Leily; Rahmawati, Roselina; Setyono, Karnawan Joko; Sukoyo, Sukoyo; Mulyono, Tedjo; Sudarmono, Sudarmono; Warsiti, Warsiti
Bangun Rekaprima Vol. 10 No. 1 (2024): April 2024
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/bangunrekaprima.v10i1.5584

Abstract

Bridges have a central role as routes that connect between regions, one of which is Permata Jangli Housing Phase 2. Because of the importance of this connectivity, community dedication to repairing bridges is a major concern in efforts to maintain the safety and sustainability of the bridge. This community service examines repair methods for the retaining walls around the bridge to avoid the potential for the bridge to be eroded by water flow. Through the active participation of community members and the implementation of appropriate construction techniques, the results of this collaboration show that the retaining walls around the bridge have been successfully repaired, as well as increasing their resistance to water pressure and erosion. The success of this community service not only improves the quality of life of local residents by ensuring sustainable connectivity, but also empowers communities in efforts to preserve their vital infrastructure. This community service can be an inspiring example for similar efforts in similar housing complexes that face similar challenges in maintaining important infrastructure such as bridges. This underlines the important role of community service in maintaining infrastructure as a key aspect in sustainable development in urban housing.
PENERAPAN TEKNOLOGI BIODIGESTER SKALA RUMAH TANGGA SEBAGAI SARANA PENDUKUNG PRODUKSI SUSU KAMBING DI KUNCEN FARM MIJEN Roihatin, Anis; Aulia, Nur Fatowil; Mulyono, Mulyono; Sahid, Sahid; Hendrawati, Dwiana; Prasetyo, Totok; Supriyo, Supriyo; Safaruddin, Yanuar Mahfudz
Bangun Rekaprima Vol. 10 No. 1 (2024): April 2024
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/bangunrekaprima.v10i1.5492

Abstract

Biogas is an environmentally friendly alternative energy source that is widely developed in society. Livestock waste is a source of biogas that is easy to obtain and the installation of digestion is easy, making biogas used by the community as an alternative to LPG. Kuncen Farm is a livestock farmer group that has a business cultivating dairy goats, fattening goats (Jawarandu Goats) and breeding Etawa goats. So far, goat manure waste is still managed conventionally, where only organic fertilizer is used for community agricultural needs and only makes up 30-50% of the total manure waste. Goat waste that is not used ends up being simply collected, producing an unpleasant odor and disturbing the environment. Based on the problems faced by Kuncen Farm and the potential of goat manure waste as a source of biogas, the application of biodigester technology on a household scale is a solution to goat manure waste as well as being a supporting facility for goat milk production at Kuncen Farm. This biodigester technology is made from PE plastic and utilizes used items around the house that can be used, such as used bottles, used stoves, motorbike tire rubber, etc. The main product in the form of biogas is used as fuel in gas stoves for goat's milk production and the by-product can be used as liquid fertilizer or organic compost which has economic value. This biogas stove can replace LPG fuel for cooking goat's milk. Furthermore, this biodigester technology can be installed on each group member.
OPTIMALISASI PEMANFAATAN LIMBAH PECAHAN BATA UNTUK MENINGKATKAN KETERAMPILAN BATU DI KELURAHAN NGADIRGO KOTA SEMARANG Wicaksono, Teguh Mulyo; Wasino, Wasino; Mukhlisin, Muhammad; Supriyadi, Supriyadi; Sudarmono, Sudarmono; Junaidi, Junaidi; Sukoyo, Sukoyo; Suwarno, Anung; Mahmudi, Wildana Latif; Abdillah, Rifqi Aulia
Bangun Rekaprima Vol. 10 No. 1 (2024): April 2024
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/bangunrekaprima.v10i1.5467

Abstract

2022 is the beginning of offline learning after the Covid-19 pandemic. where previously learning was carried out online including practicums. One of the practicums carried out in the Semarang State Polytechnic Civil Engineering department is the masonry practicum which is carried out for semester 1 students. With the offline masonry practicum, the practicum will leave behind brick fragments that can no longer be used. These broken bricks will usually be thrown away at the end of each semester after all the practicums have been carried out. the proportion of brick fragments to intact bricks usually reaches 30% to 40%. The construction workers come from the Ngadirgo community, they learn building work autodidactically based on experience. With the continued development of BSB, there are quite a lot of employment opportunities, including development workers. Techniques and methods of masonry work that comply with construction standards can increase the ability of craftsmen to become skilled workers so that it is hoped that they can improve the welfare of the community around Ngadirgo sub-district, Mijen sub-district. Ngadirgo sub-district currently has a village cemetery which is located in Ngadirgo hamlet RW 2, in this cemetery there is no coffin house which is used to store death equipment including the coffin which is currently still entrusted to one of the residents' house. With the existence of coffin house products made from brick masonry in the village cemetery area.
PENERAPAN SISTEM PEMERIKSAAN DAN PERBAIKAN RETAKAN PADA DINDING DI KELURAHAN PAKINTELAN KECAMATAN GUNUNGPATI KOTA SEMARANG Kusumastuti, Dianita Ratna; Marsudi, Marsudi; Goro, Garup Lambang; Santosa, Stefanus; Supriyo, Supriyo; Rabinah, Aiun Hayatu; Praharseno, Fikri; Abdillah, Rifqi Aulia; Sulaiman, Sriwahyuningsih
Bangun Rekaprima Vol. 10 No. 1 (2024): April 2024
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/bangunrekaprima.v10i1.5635

Abstract

Community service in the form of implementing a system for checking and repairing cracks in walls in Pakintelan Village, Gunungpati District, Semarang City aims to increase residents' knowledge regarding the problem of cracks in walls which are thought to be caused by ground movement. This activity starts from a site survey, equipment preparation, and training carried out with the correct procedures, ensuring the implementation of correct repair methods and according to standards. Based on the results of surveys and interviews with local residents, the cracks in the walls of houses that occurred at the Citra Pesona Pakintelan Housing Complex were caused by ground movements which caused non-uniform structural settlement and vibrations resulting from housing construction behind the service location. The service team and students provide guidance and assistance to stone masons and the surrounding community. There were 6 masons who took part in the training and several members of the local community. The repair method used to repair cracked walls is the stitching method.

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