Kbarek, Ahmad Toriq Maudrey (2025) Studi Eksperimental Respons Geser Kritis Balok Beton Bertulang Pada Beton Teraktivasi Alkali (Alkali Activated Concrete) Dengan Perawatan Pada Suhu Lingkungan. Masters thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Beton teraktivasi alkali merupakan salah satu inovasi material konstruksi ramah lingkungan karena memanfaatkan fly ash dari sisa pembakaran batu bara dan ground granulated blast furnace slag dari sisa proses produksi baja. Berbagai penelitian telah dilakukan untuk meninjau karakteristik beton teraktivasi alkali agar dapat diaplikasikan sebagai pengganti material semen. Namun, studi mengenai perilaku strukturalnya, khususnya perilaku geser pada balok beton bertulang masih terbatas. Oleh sebab itu, penelitian ini berfokus pada analisis perilaku geser elemen struktur balok geser kritis beton teraktivasi alkali dengan menggunakan metode pencampuran satu tahap dan perawatan pada suhu lingkungan. Studi ini dilakukan untuk membuat pendekatan yang sesuai dengan pengerjaan beton di lapangan. Eksperimen dilakukan dengan memproduksi empat spesimen balok beton teraktivasi alkali berukuran 150 x 250 x 1600 mm dengan mutu rencana 30 MPa. Variabel yang diuji mencakup jumlah dan jarak tulangan sengkang. Pengujian dilakukan menggunakan metode three-point bending sesuai dengan standar ASTM C78/C78M-16. Selain itu, analisis pola retak pada balok menggunakan metode Digital Image Correlation dengan bantuan perangkat lunak Ncorr untuk memperoleh hasil yang lebih akurat. Dengan begitu, diperoleh pemahaman yang lebih mendalam mengenai perilaku elemen struktur balok geser kritis beton teraktivasi alkali secara komprehensif.
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Alkali-activated concrete is one of the innovations in environmentally friendly construction materials because it utilises fly ash from coal combustion residues and ground granulated blast furnace slag from the rest of the steel production process. Various studies have been conducted to review the characteristics of alkali-activated concrete so that it can be applied as a substitute for cement materials. However, studies on its structural behaviour, particularly the shear behaviour of reinforced concrete beams are still limited. Therefore, this study focuses on the analysis of the shear behaviour of critical shear beam structural elements of alkali-activated concrete using the one-part mixing method and curing at ambient temperature. This study was conducted to make a suitable approach to concrete working in the field. Experiments were conducted by producing four alkali activated concrete beam specimens measuring 150 x 250 x 1600 mm with a plan quality of 30 MPa. The variables tested included the number and spacing of stirrups. The tests were conducted using the three-point bending method in accordance with ASTM C78/C78M-16. In addition, the crack patterns in the beams were analysed using the Digital Image Correlation method with the help of Ncorr software to obtain more accurate results. Therefore, a better understanding of the structural behaviour of alkali activated concrete critical shear beams was comprehensively obtained.
| Item Type: | Thesis (Masters) |
|---|---|
| Uncontrolled Keywords: | Beton teraktivasi alkali, fly ash, metode pencampuran satu tahap, perilaku geser, pola retak, perawatan pada suhu lingkungan, Alkali activated concrete, fly ash, one-part mixing, shear behaviour, crack pattern, ambient temperature cured. |
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) > TA418.16 Materials--Testing. T Technology > TA Engineering (General). Civil engineering (General) > TA433 Strength of materials. T Technology > TA Engineering (General). Civil engineering (General) > TA440 Concrete--Cracking. T Technology > TA Engineering (General). Civil engineering (General) > TA444 Reinforced concrete |
| Divisions: | Faculty of Civil, Planning, and Geo Engineering (CIVPLAN) > Civil Engineering > 22101-(S2) Master Thesis |
| Depositing User: | Ahmad Toriq Maudrey Kbarek |
| Date Deposited: | 29 Jul 2025 08:23 |
| Last Modified: | 29 Jul 2025 08:23 |
| URI: | http://repository.its.ac.id/id/eprint/122672 |
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