Investigation of shear behavior in geopolymer concrete beams
with different ratios of slag and polyamide fibers
under oven and ambient curing condition
Ali İhsan Çelik,Ufuk Tunç,Memduh Karalar,Atahan Güven,Yasin Onuralp Özkiliç
Abstract
The purpose of this study was to investigate the effect that varying proportions of slag and polyamide fibers have on the shear performance of reinforcing geopolymer concrete. For the purpose of accomplishing this goal, the performance of geopolymer concrete was evaluated by adjusting the ratios of slag to polyamide fiber and the percentage of replacement. Furthermore, it was investigated how to reinforce geopolymer concrete by combining ambient and oven curing techniques. The slag ratio was adjusted in various amounts, such as 5%, 10%, and 15%, to accomplish this aim. The polyamide fiber ratios, however, were determined to be 1%, 2%, and 3%, respectively. This aim was attained by creating a total of twelve distinct mixing proportion examples. The impact of altering the slag ratio while maintaining a constant polypropylene fiber ratio was examined in this study. When the slag ratio was increased by 15%, the load bearing capacities of R-C-Bs were directly improved by 21.85% and 10.28%, respectively, when they were cured in an oven and in an ambient environment. Furthermore, it was found that by increasing the ratio of polypropylene fibers by 1% during the ambient and oven curing processes, the load carrying capacity of R-C-B was significantly increased by 10.59% and 3.61%, respectively. The findings of the research demonstrated that the use of an oven curing technique to the concrete resulted in a considerable improvement in the reinforcing geopolymer concrete’s ability to be strengthened. Furthermore, the experimental results obtained were compared with various design codes, including ACI-318, CEB-FIB, Eurocode, and the Iranian National Building Codes.
Ali İhsan Çelik, Ufuk Tunç, Atahan Güven — Department of Construction, Tomarza Mustafa Akincioglu Vocational School, Kayseri University, Kayseri, 38940, Turkey
Memduh Karalar — Department of Civil Engineering, Zonguldak Bulent Ecevit University, Zonguldak, Turkey
Yasin Onuralp Özkiliç — Department of Civil Engineering, Faculty of Engineering, Necmettin Erbakan University, Konya 42000, Turkey; Department of Unique Buildings and Constructions Engineering, Don State Technical University, Gagarin Sq. 1, 344003 Rostov-on-Don, Russia; Department of Technical Sciences, Western Caspian University, Baku, 1001, Azerbaijan
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