Perilaku Tegangan Regangan Pada Beton Agregat Ringan Buatan Mutu 30 Mpa Yang Diperkuat Dengan Fiber Reinforced Polymer (CFRP dan GFRP)

Fajar, Adetya Rijiyawanto (2023) Perilaku Tegangan Regangan Pada Beton Agregat Ringan Buatan Mutu 30 Mpa Yang Diperkuat Dengan Fiber Reinforced Polymer (CFRP dan GFRP). Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Beton pada konstruksi bangunan memiliki kekurangan, yaitu pada berat beton. Untuk mengatasi kekurangan tersebut yaitu mengganti penggunaan agregat kasar dengan agregat ringan. Penggunaan agregat ringan dapat mengurangi berat hingga 30%. Salah satu agregat ringan buatan yang dapat digunakan sebagai pengganti agregat kasar alami adalah ALWA Cilacap. Namun beton ringan memiliki kelemahan yaitu pada kekuatan dan daktilitasnya rendah dibandingkan dengan beton normal. Fiber Reinforced Polymer (FRP) merupakan material perkuatan yang dapat digunakan sebagai alternatif untuk meningkatkan kekuatan dan daktilitas beton ringan. Penelitian ini berfokus pada perilaku tegangan dan regangan benda uji beton ringan berbahan agregat ringan buatan (ALWA) yang diperkuat dengan Fiber Reinforced Polymer (FRP). Benda uji beton ringan ini memiliki bentuk penampang segi empat dengan lengkungan pada ujung-ujungnya, dimana panjang dan lebar penampang masing-masing 150 mm dengan radius sudut sebesar 25 mm dan tinggi benda uji 300 mm. Total benda uji yang dibuat sebanyak 8 buah dengan variasi jenis FRP dan jumlah lapis. Pengujian benda uji beton ringan ini dilakukan menggunakan Universal Testing Machine (UTM) berkapasitas 2000 kN dan menggunakan displacement control dengan rate beban yang diberikan sebesar 3 mm/menit. Rate beban ini diberikan dari dimulainya pengetesan benda uji hingga benda uji tersebut hancur. Untuk memperoleh nilai tegangan dan regangan, benda uji dipasang strain gauge dan LVDT (Linear Variable Differential Transformer). Hasil pada penelitian ini menunjukkan bahwa benda uji beton ringan ALWA yang diberi FRP mengalami peningkatan nilai kuat tekan. Sementara itu, hasil grafik tegangan regangan menunjukkan bahwa beton ringan ALWA yang diperkuat CFRP menghasilkan tegangan puncak lebih tinggi daripada yang diperkuat GFRP. Namun, beton ringan ALWA dengan CFRP karakteristiknya lebih kaku dan getas dibandingkan dengan yang diperkuat GFRP.
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Concrete in building construction has a disadvantage, namely its weight. To overcome this drawback, coarse aggregate can be replaced with lightweight aggregate. The use of lightweight aggregate can reduce the weight by up to 30%. One artificial lightweight aggregate that can be used as a replacement for natural coarse aggregate is ALWA Cilacap. However, lightweight concrete has a weakness in terms of its strength and ductility compared to normal concrete. Fiber Reinforced Polymer (FRP) is a reinforcement material that can be used as an alternative to enhance the strength and ductility of lightweight concrete. This study focuses on the stress and strain behavior of lightweight concrete test specimens made from ALWA lightweight aggregate reinforced with Fiber Reinforced Polymer (FRP). These lightweight concrete test specimens have a rectangular cross-sectional shape with curvature at the ends, with each cross-section having a length and width of 150 mm and a corner radius of 25 mm, and a height of 300 mm. A total of 8 test specimens were made with variations in the type of FRP and the number of layers. The testing of these lightweight concrete test specimens was carried out using a 2000 kN capacity Universal Testing Machine (UTM) with displacement control, applying a loading rate of 3 mm/minute. This loading rate was applied from the beginning of the test until the test specimens were fractured. To obtain stress and strain values, strain gauges and LVDT (Linear Variable Differential Transformer) were installed on the test specimens. The results of this study show that the ALWA lightweight concrete test specimens reinforced with FRP experienced an increase in compressive strength. Meanwhile, the stress-strain graph results show that ALWA lightweight concrete reinforced with CFRP (Carbon Fiber Reinforced Polymer) produces higher peak stress compared to those reinforced with GFRP (Glass Fiber Reinforced Polymer). However, ALWA lightweight concrete reinforced with CFRP is stiffer and more brittle than those reinforced with GFRP.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	agregat ringan buatan(ALWA), beton ringan, Strain gauges, Tegangan regangan, Lightweight concrete, Artificial lightweight aggregates (ALWA), Fiber Reinforced Polymer, Linear Variable Differential Transformer, Stress-Strain Value
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) > TA439 Lightweight concrete. High strength concrete.
Divisions:	Faculty of Vocational > Civil Infrastructure Engineering (D4)
Depositing User:	ADETYA RIJIYAWANTO FAJAR
Date Deposited:	09 Nov 2023 05:26
Last Modified:	09 Nov 2023 05:26
URI:	http://repository.its.ac.id/id/eprint/103115

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