Kuranlı, Ömer FarukUysal, MüctebaAbbas, Mele TidjaniÇoşgun, TurgayNiş, AnılAygörmez, YurdakulCanpolat, OrhanAl-Mashhadani, Mukhallad M.2023-10-052023-10-0520231964-81892116-7214https://hdl.handle.net/11363/5773https://doi.org/Alkali-activated composites are significant materials in reducing CO2 emissions and ensuring sustainability. With the increasing concerns about climate change globally, the interest in alkali-activated materials has also increased. Researching different fibers has very important potential in this area. This study aims to make alkali-activated concretes widespread in the concrete sector by using the materials common in conventional concretes and ensuring that alkali-activated concretes are an alternative in terms of sustainability. Experimental studies were conducted to examine the mechanical, durability, and microstructural properties (SEM) of slag-based alkaliactivated concrete (AASC) reinforced with three various fibers. The fibers, polypropylene (PP), polyamide (PA), and steel (ST), were used with two ratios (%0.4 and %0.8 by vol.). Compressive, splitting tensile, and flexural strength tests were carried out at 28 and 90 days. In terms of durability properties, the samples were exposed to high temperatures (300–600–900 C) and freeze-thaw test (250 cycles). The results showed that the addition of fibers improved the strength and durability properties; for instance, the existence of steel and polypropylene fibers increased the flexural toughness factor values by 430% and 260%, respectively. Moreover, the compressive strength of the fibrous samples exposed to 900 C was obtained in the range of 6-23 MPa.eninfo:eu-repo/semantics/openAccessAttribution-NonCommercial-NoDerivs 3.0 United StatesGGBSalkali-activated concretesteel fibersynthetic fibershigh-temperaturefreeze-thawArticle27111413910.1080/19648189.2022.20313022-s2.0-85124288143Q2WOS:000750784100001Q3