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All Journal Wahana Teknik Sipil: Jurnal Pengembangan Teknik Sipil Mitra Akademia: Jurnal Pengabdian Masyarakat
I Made Jaya, I Made
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Humanities Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Economics, Econometrics & Finance Engineering Environmental Science Industrial & Manufacturing Engineering Social Sciences Transportation

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Modifikasi Beton Normal Sebagai Rigid Pavement Yang Memenuhi Syarat Kuat Lentur Kader, I Made Suardana; Jaya, I made
Wahana Teknik Sipil: Jurnal Pengembangan Teknik Sipil Vol 23, No 2 (2018): Wahana Teknik Sipil
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/wahanats.v23i2.1361

Abstract

Minimum specification of concrete flexural strength for rigid pavement structure is 4.5 MPa. If it is estimated, the concrete quality that meets these requirements is f'c 41. To get concrete f'c 41 requires very good material, measurable methods of implementation and strict supervision. Therefore, the procurement of concrete is very expensive. In addition to price issues, the provision of coarse aggregates with specific gravity above 2.5 in Bali Province is still difficult. Under these conditions, normal concrete is designed but meets the requirements by 1) adding wire fibers with a variation of 0.5%, 0.75%, 1%, 3% and 5% of the concrete weight and 2) giving a layer of carbon fiber under a layer of concrete without resin adhesive. The results of the study revealed that the addition of wire fibers of less than 5% turned out to make the value of flexural strength lower than without wire, so that at 5% wire content the flexural strength slightly exceeded the flexural strength without wire. The value of flexural strength without wire is 4.57 MPa, flexural strength with a 5% wire content is 4.94 MPa, resulting in a difference of 0.44 MPa or greater 9.47%. For flexural strength with carbon fiber layer at the bottom, the value of flexural strength increased significantly to 5.63 MPa or about 25.10%. This is understandable because carbon fiber has a high tensile strength  pecification and is the main material in retrofit activity.Kata kunci : rigid pavement, flexural strenght, wire fibers, carbon fiber
Peningkatan Pengetahuan Serta Keterampilan Penulangan dan Pengecoran Pada Masyarakat Candi Kuning, Tabanan, Bali Surya Herlambang, Fajar; Purnawirati, I.G.A. Neny; Ardika, I Nyoman; Intara, I Wayan; Suasira, Wayan; Jaya, I Made
Mitra Akademia: Jurnal Pengabdian Masyarakat Vol 6 No 3 (2023): Mitra Akademia: Jurnal Pengabdian Masyarakat
Publisher : Pusat Penelitian dan Pengabdian kepada Masyarakat (P3M) Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/mapnj.v6i3.5725

Abstract

Reinforced concrete is the most widely used structure compared to steel or wood. Reinforced concrete is generally very easy to work with. The material is very easy to get. It's so easy, it's often done by workers who don't have knowledge and skills about concrete structures. This condition is exacerbated by building owners who do not pay attention to the details of reinforced concrete structures. The owner does not want to pay for the planning consultant or supervisor. The combination of these causes the condition of the building to be not in a safe condition even though in reality there are still many buildings that are being worked on haphazardly and are still in good condition. In the rules of Civil Engineering where safety is the main thing, the conditions above must be corrected. One of the efforts of the academic community to improve this situation is to implement a Community Service Program (PKM) in the form of Technical Guidance (Bimtek) for construction workers. This Bimtek is filled with the provision of theory and practice. The theory presented is knowledge about reinforcement and concrete constituent materials. While the practice consists of working on reinforcement: cutting, bending and assembling reinforcement. For concrete practice consists of mixing and casting concrete. From this Bimtek, the construction workers understand and able to do reinforcement, mix and pour concrete properly. It is hoped that after attending this Bimtek, the construction workers will be able to apply their knowledge and skills to the projects they are working on in order to obtain a good reinforced concrete structure. In its implementation, this Bimtek received a good reception from the Perbekel and the community. In his speech, the Perbekel of Candi Kuning Village hoped that the masons who had attended this Bimtek would become pioneers of correct concrete structure work, be able to increase competitiveness and get increased wages. Through the representatives of the participants, they expressed their gratitude for the knowledge taught and hoped that similar activities could be carried out again.
Co-Authors Fajar Surya Herlambang I Made Suardana Kader I NYOMAN ARDIKA Intara, I Wayan Purnawirati, I.G.A. Neny Suasira, Wayan