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Mechanical and durability properties of steel, polypropylene and polyamide fiber reinforced slag-based alkali-activated concrete
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 alkali-activated 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.
Mechanical and durability properties of steel, polypropylene and polyamide fiber reinforced slag-based alkali-activated concrete
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 alkali-activated 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.
Mechanical and durability properties of steel, polypropylene and polyamide fiber reinforced slag-based alkali-activated concrete
Kuranlı, Ömer Faruk (Autor:in) / Uysal, Mucteba (Autor:in) / Abbas, Mele Tidjani (Autor:in) / Çoşgun, Turgay (Autor:in) / Niş, Anıl (Autor:in) / Aygörmez, Yurdakul (Autor:in) / Canpolat, Orhan (Autor:in) / Al-mashhadani, Mukhallad M. (Autor:in)
European Journal of Environmental and Civil Engineering ; 27 ; 114-139
02.01.2023
26 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Unbekannt
Mechanical Properties and Durability of Fiber Reinforced Alkali Activated Slag Concrete
| Online Contents | 2017
Mechanical Properties and Durability of Fiber Reinforced Alkali Activated Slag Concrete
| British Library Online Contents | 2017