Analisis penambahan serat karbon terhadap kekuatan lentur dan kinerja defleksi balok beton bertulang mutu tinggi = Analysis of carbon fiber addition on the flexural strength and deflection performance of high strength reinforced concrete beams

Sondakh, Joshua Michael (2025) Analisis penambahan serat karbon terhadap kekuatan lentur dan kinerja defleksi balok beton bertulang mutu tinggi = Analysis of carbon fiber addition on the flexural strength and deflection performance of high strength reinforced concrete beams. Bachelor thesis, Universitas Pelita Harapan.

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Abstract

Beton merupakan salah satu bahan konstruksi yang paling banyak digunakan karena memiliki sifat mudah dibentuk dan harga yang relatif murah. Salah satu jenis beton, yaitu beton mutu tinggi (HSC), dapat digunakan untuk proyek tertentu seperti gedung bertingkat tinggi, jembatan dan beton pracetak. Beton HSC dipilih karena memiliki kekuatan tekan yang tinggi serta berbagai keunggulan lainnya. Seiring dengan peningkatan kuat tekan pada beton HSC, karakteristik getas beton semakin terlihat. Karakteristik ketangguhannya menurun, sehingga beton menjadi lebih rentan terhadap retak. Pelebaran keretakan dapat mengurangi kemampuan dalam menanggung beban. Dalam proyek-proyek yang menggunakan beton HSC, perlu dilakukan penelitian untuk mengembangkan metode penguatan yang bertujuan meningkatkan kinerja beton mutu tinggi dan meminimalkan keretakan secara efektif. Penelitian ini bertujuan untuk menganalisis pengaruh penambahan serat karbon pada beton HSC untuk meningkatkan kinerjanya dan meminimalkan keretakan yang terjadi. Variasi penambahan serat karbon yang digunakan adalah 0%, 0,2%, 0,6% dan 1% dari berat cementitious materials. Metode penelitian ini meliputi pengujian kuat tekan pada silinder beton dan pengujian kuat lentur pada balok beton bertuang. Hasil dari pengujian tersebut dapat dianalisis untuk melihat pengaruh penambahan serat karbon pada beton HSC dalam aspek kuat tekan, momen ultimit, defleksi serta ketahanan terhadap retak pada balok beton bertulang. Hasil penelitian ini menunjukkan bahwa penambahan serat karbon sebesar 1 wt% secara keseluruhan meningkatkan kinerja beton HSC dalam aspek nilai kuat tekan, momen ultimit, defleksi maksimum dan ketahanan terhadap retak. Namun, pada variasi penambahan serat karbon lainnya terdapat penurunan dalam beberapa aspek tersebut. Ketahanan terhadap retak pada balok beton bertulang pada daerah elastis mengalami peningkatan pada balok beton bertulang HSCFRC. Penelitian ini menyimpulkan bahwa penambahan serat karbon dapat meningkatkan kinerja beton HSC dan meningkatkan ketahanan terhadap retak balok beton bertulang pada daerah elastis. Dengan demikian, beton HSCFRC berpotensi memberikan solusi potensial dalam meningkatkan kinerja beton HSC. / Concrete is one of the most widely used construction materials due to its ease of shaping and relatively low cost. One type of concrete, known as high-strength concrete (HSC), is suitable for specific projects such as high-rise buildings, bridges, and precast concrete. HSC is chosen for its high compressive strength and various other advantages. However, as the compressive strength of HSC increases, the brittle characteristics of the concrete become more pronounced. Its toughness decreases, making it more prone to cracking. Crack widening can reduce its load-bearing capacity. In projects utilizing HSC, research is needed to develop methods aimed at enhancing the performance of high-strength concrete and minimizing cracking effectively. This study aims to analyze the effect of carbon fiber addition on HSC to improve its performance and minimize cracking. The variations of carbon fiber addition used are 0%, 0.2%, 0.6%, and 1% of the cementitious materials weight. The research methods include compressive strength tests on concrete cylinders and flexural strength tests on reinforced concrete beams. The results of these tests are analyzed to determine the effect of carbon fiber addition on HSC in terms of compressive strength, ultimate moment, deflection and crack resistance at the elastic region in reinforced concrete beams. The findings indicate that the addition of 1 wt% carbon fiber improves the overall performance of HSC in all aspects which are compressive strength, moment ultimate, maximum deflection and crack resistance at the elastic region. However, other variations in carbon fiber addition showed reductions in some of these aspects. Crack resistance at the elastic region in reinforced HSCFRC beams exhibit significant increases. The study concludes that the addition of carbon fiber can enhance the performance of HSC and improve crack resistance at the elastic region in reinforced concrete beams. Thus, HSCFRC offers potential as a solution for improving the performance of HSC.
Item Type: Thesis (Bachelor)
Creators:
Creators
NIM
Email
ORCID
Sondakh, Joshua Michael
NIM01021210003
joshuasondakh411@gmail.com
UNSPECIFIED
Contributors:
Contribution
Contributors
NIDN/NIDK
Email
Thesis advisor
Purba, Sadvent Martondang
NIDN0317049801
sadvent.purba@uph.edu
Thesis advisor
Wibowo, Kevin Aprilio
NIDN0317049801
kevin.wibowo@uph.edu
Uncontrolled Keywords: beton mutu tinggi; carbon fiber reinforced concrete (cfrc); kuat tekan; kuat lentur; keretakan; high strength concrete; carbon fiber reinforced concrete (cfrc); compressive strength; flexural strength; cracking.
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Divisions: University Subject > Current > Faculty/School - UPH Karawaci > Faculty of Science and Technology > Civil Engineering
Current > Faculty/School - UPH Karawaci > Faculty of Science and Technology > Civil Engineering
Depositing User: Stefanus Tanjung
Date Deposited: 27 Mar 2025 06:40
Last Modified: 27 Mar 2025 06:40
URI: http://repository.uph.edu/id/eprint/67981

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