Bazalt liflerin geleneksel betonların mekanik özelikleri ve kırılma enerjilerine etkilerinin incelenmesi
Abstract
Bu
çalışmanın temel amacı, bazalt liflerinin geleneksel betonun mekanik özelikleri
ve eğilme altında kırılma parametrelerine etkilerini incelemektir. Betonun
kırılma enerjilerinin belirlenmesi amacıyla, RILEM TC 50-FMC standardına uygun
olarak, lifsiz ve 24 mm boyunda 0.5, 1, 2 ve 3 kg/m³ bazalt lif içeriğine sahip
15 adet 50x100x480 mm boyutlarında çentikli kiriş numuneleri üretilmiştir.
Üretilen çentikli kiriş numuneleri üzerinde üç nokta eğilme deneyi
gerçekleştirilmiştir. Çentikli kiriş numunelerin kırılma enerjileri, yük-çatlak
açıklığı eğrisinin altında kalan alan kullanılarak hesaplanmıştır. Elde edilen
sonuçlar, bazalt liflerin betonun kırılma enerjisini önemli oranda artırdığını
göstermiştir. Bunun yanında bazalt liflerin betonun, basınç dayanımı ve
elastisite modülü üzerinde önemli bir etkisinin olmadığı görülmüştür. Yarmada
ve eğilmede çekme dayanımlarında ise 2 kg/m³ lif içeriğinden sonra azalma
başladığı görülmüştür. Elde edilen sonuçların tamamı beraber
değerlendirildiğinde geleneksel beton için en uygun lif oranının 2 kg/m³ olduğu
belirlenmiştir.
References
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Year 2017,
Volume: 23 Issue: 3, 203 - 208, 30.06.2017
Abstract
References
- Jiang C, Fan K, Wu F, Chen D."Experimental study on the mechanical properties and microstructure of chopped basalt fibre reinforced concrete". Materials & Design, 58(6), 187-193, 2014. Tassew ST, Lubell AS. "Mechanical properties of glass fiber reinforced ceramic concrete". Construction and Building Materials, 51, 215-224, 2014. Mohammadi Y, Singh SP, Kaushik SK. "Properties of steel fibrous concrete containing mixed fibres in fresh and hardened state". Construction and Building Materials, 22(5), 956-965, 2008. Shaikh FUA. "Review of mechanical properties of short fibre reinforced geopolymer composites". Construction and Building Materials, 43(6), 37-49, 2013. Di Ludovico M, Prota A, Manfredi G. "Structural upgrade using basalt fibers for concrete confinement". Journal of Composites for Construction, 14(5), 541-552, 2010. Kabay N. "Abrasion resistance and fracture energy of concretes with basalt fiber". Construction and Building Materials, 50, 95-101, 2014. Brigante D. New Composite Materials: Selection, Design, and Application. Switzerland, Springer International Publishing, 2014. Sim J, Park C, Moon DY. "Characteristics of basalt fiber as a strengthening material for concrete structures". Composites Part B: Engineering, 36(6-7), 504-512, 2005. Dias DP, Thaumaturgo C. "Fracture toughness of geopolymeric concretes reinforced with basalt fibers". Cement and Concrete Composites, 27(1), 49-54, 2005. Li W, Xu J. "Mechanical properties of basalt fiber reinforced geopolymeric concrete under impact loading". Materials Science and Engineering: A, 505(1-2), 178-186, 2009. Hillerborg A. Analysis of one Single Crack. Fracture Mechanics of Concrete (Developments in civil engineering) Editors: Wittmann FH. Fracture Mechanics of Concrete (Developments in Civil Engineering), 223-249, Michigan University, USA, Elsevier, 1983. Hillerborg A. "The theoretical basis of a method to determine the fracture energy GF of concrete". Materials and Structures, 18(4), 291-296, 1985. RILEM FMC-50. "Determination of the fracture energy of mortar and concrete by means of three-point bend tests on notched beams". Materials and Structures, 18(4), 287-290, 1985. Peterson PE. "Fracture energy of concrete: Method of determination". Cement and Concrete Research, 10(1), 79-89, 1980. Bayramov F, Taşdemir C, Taşdemir MA. "Optimisation of steel fibre reinforced concretes by means of statistical response surface method". Cement and Concrete Composites, 26(6), 665-675, 2004. Şahin Y, Köksal F. "The influences of matrix and steel fibre tensile strengths on the fracture energy of high-strength concrete". Construction and Building Materials, 25(4), 1801-1806, 2011. Kizilkanat AB, Kabay N, Akyüncü V, Chowdhury S, Akça AH. "Mechanical properties and fracture behavior of basalt and glass fiber reinforced concrete: An experimental study". Construction and Building Materials, 100, 218-224, 2015. Bažant ZP. Fracture Mechanics of Concrete Structures. New York, USA, Taylor and Francis, 1992. Shah SP, Swartz SE, Ouyang C. Fracture Mechanics of Concrete: Applications of Fracture Mechanics to Concrete, Rock and Other Quasi-Brittle Materials. New York, USA, John Wiley & Sons, 1995. Patel PA, Desai Atul K, Desai Jatil A. "Evaluation of engineering properties for polypropylene fibre reinforced concrete". International Journal of Advanced Engineering Technology, 3(1), 42-45, 2012.
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Details
| Journal Section | Research Article |
|---|---|
| Authors | |
| Publication Date | June 30, 2017 |
| Published in Issue | Year 2017 Volume: 23 Issue: 3 |
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