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Analyzing the Low-Temperature Behavior of Self-Compacting Concretes through Non-Destructive Testing Methods

Yıl 2018, Cilt: 6 Sayı: 3, 8 - 15, 30.09.2018
https://doi.org/10.21541/apjes.400243

Öz

Among the non-destructive testing methods, ultrasonic
pulse velocity and resonant frequency are often used to determine material
properties. The dynamic modulus of elasticity provides information about the
freeze-thaw resistance of concrete specimens and is a characteristic used
especially in designs under dynamic loading. This study investigated the
possible effects of the contact of concrete with a cryogenic liquid and the
behavior of concrete using non-destructive testing methods. To this end, a
high-strength self-compacting concrete mix was designed using blast-furnace slag
(BFS), fly ash (FA), and silica fume (SF). The water-cured, membrane-cured and
air-cured specimens gaining strength for 28, 56, and 90 days were exposed to
the cryogenic liquid. The dynamic modulus of elasticity test and ultrasonic
pulse velocity test were performed on the specimens exposed to the cryogenic
liquid. The test results indicated that the dynamic modulus of elasticity value
and the ultrasonic pulse velocity value decreased with the increase in the time
of exposure to the cryogenic liquid. Considering the curing times and curing
methods, the SF specimens had the highest R2 values.

Kaynakça

  • [1] P. L. Domone, "A review of the hardened mechanical properties of self-compacting concrete," Cement and Concrete Composites, vol. 29, pp. 1-12, 1// 2007.
  • [2] Efnarch, "The european guidelines for self-compacting concrete: specification, production and use," ed: The european federation of specialist construction chemicals and concrete systems., 2005.
  • [3] P. Kumar, "Self-compacting concrete: methods of testing and design," Journal of the Institution of Engineers, vol. 86, pp. 145-150, 2006.
  • [4] M. H. Özkul, "Beton teknolojisinde bir devrim: kendiliğinden yerleşen-sıkışan beton," Hazır Beton Dergisi, vol. 52, pp. 64-71, 2002.
  • [5] M. Safiuddin, "Development of self-consolidating high performance concrete incorporating rice husk ash," University of Waterloo, 2008.
  • [6] Ü. Yurt, M. Emiroğlu, B. Çomak, and M. Yüksek, "The Effect of Cryogenic Temperature Conditions on the Mechanical and Physical Properties of Self-Compacting Concretes " El-Cezeri Journal of Science and Engineering, vol. 3, 2016.
  • [7] Ü. Yurt and M. Emiroğlu, "Doğalgaz Depolama Tankları İçin Üretilmiş Betonların Mekanik Özelliklerinin Belirlenmesi," in 1. International Conference on Engineering Technology and Applied Sciences Afyon Kocatepe University, Turkey 21-22 April 2016, (ICETAS), 2016, pp. 432-435.
  • [8] Ü. Yurt, "Fracture Mechanics Performance Of Self-Consolidating Concrete Exposed To Cryogenic Temperatures " Ph.D., Departmant of Composite Materials Technologies, University of Düzce, 2015.
  • [9] D. E. Berner, "Behavior of prestressed concrete subjected to low temperatures and cyclic loading (cryogenic, offshore)," 8512756 Ph.D., University of California, Berkeley, Ann Arbor, 1984.
  • [10] D. E. Berner and B. C. Gerwick, Jr., "Static and cyclic behavior of structural lightweight concrete at cryogenic temperatures," in Ocean Space Utilization ’85, W. Kato, B. C. Gerwick, Jr., M. Homma, R. Lenschow, O. T. Magoon, C. C. Mei, et al., Eds., ed: Springer Japan, 1985, pp. 439-445.
  • [11] P. Domone and J. Illston, Construction Materials: Their Nature and Behaviour. Taylor and Francis Group e-Library: Spon Press, 2002.
  • [12] A. Hanaur, "Testing of concrete specimens for permeability at cryogenic temperatures," Magazine of Concrete Research, pp. 155-162, 1982.
  • [13] F. S. Rostásy and U. Pusch, "Strength and deformation of lightweight concrete of variable moisture content at very low temperatures," International Journal of Cement Composites and Lightweight Concrete, vol. 9, pp. 3-17, 2// 1987.
  • [14] L. Vandewalle, "Bond between a reinforcement bar and concrete at normal and cryogenic temperatures," vol. Journal of Materials Science letters, pp. 147-149, 1989.
  • [15] G. Lee, T. Shih, and K. Chang, "Mechanical properties of concrete at low temperature," Journal of cold regions engineering, vol. 2, pp. 13-24, 1988.
  • [16] Elices M., Planas J., and Maturana P., "Fracture of Concrete at Cryogenic Temperatures," in Fracture of Concrete and Rock, S. Shah and S. Swartz, Eds., ed: Springer New York, 1989, pp. 106-116.

Kendiliğinden Yerleşen Betonların Düşük Sıcaklıklardaki Davranışının Tahribatsız Yöntemlerle İncelenmesi

Yıl 2018, Cilt: 6 Sayı: 3, 8 - 15, 30.09.2018
https://doi.org/10.21541/apjes.400243

Öz



Yapıların hasara
uğratılmadan test edilmesinde tahribatsız test yöntemlerinden olan ultrases
geçiş hızı ve rezonans frekansından yararlanılarak malzeme özelliklerinin
belirlenmesi sıklıkla tercih edilmektedir. Dinamik elastisite modülü değeri
beton numunelerin donma çözünme dirençleri hakkında fikir vermekle birlikte
özellikle dinamik yüklemeler altında tasarım yapılırken kullanılan bir
karakteristiktir. Bu çalışmada betonun kriyojenik sıvı ile teması sonucunda
ortaya çıkabilecek etkiler ve beton davranışı tahribatsız yöntemlerle
incelenmiştir. Bu kapsamda Yüksek Fırın Cürufu (YFC) Uçucu Kül (UK) ve Silis
Dumanı (SD) kullanılarak hazırlanan yüksek dayanımlı kendiliğinden yerleşen
beton tasarımı gerçekleştirilmiştir. Su, örtü ve hava küründe 28,56 ve 90 gün
dayanım kazanan numuneler kriyojenik sıvıya maruz bırakılmıştır. Kriyojenik
sıvı etkisinde kalan numuneler üzerinde, dinamik elastisite modülü ve ultrases
geçiş hızı deneyleri yapılmıştır. Sonuç olarak, dinamik elastisite modülü ve
Ultrases geçiş hızı değerlerinin kriyojenik sıvıya maruz kalma süresinin artışı
ile azaldığı görülmüştür. Ayrıca tüm kür süresi ve kür tipi incelendiğinde en
yüksek R2 değerlerini SD numunelerinin aldığı gözlemlenmiştir.



Kaynakça

  • [1] P. L. Domone, "A review of the hardened mechanical properties of self-compacting concrete," Cement and Concrete Composites, vol. 29, pp. 1-12, 1// 2007.
  • [2] Efnarch, "The european guidelines for self-compacting concrete: specification, production and use," ed: The european federation of specialist construction chemicals and concrete systems., 2005.
  • [3] P. Kumar, "Self-compacting concrete: methods of testing and design," Journal of the Institution of Engineers, vol. 86, pp. 145-150, 2006.
  • [4] M. H. Özkul, "Beton teknolojisinde bir devrim: kendiliğinden yerleşen-sıkışan beton," Hazır Beton Dergisi, vol. 52, pp. 64-71, 2002.
  • [5] M. Safiuddin, "Development of self-consolidating high performance concrete incorporating rice husk ash," University of Waterloo, 2008.
  • [6] Ü. Yurt, M. Emiroğlu, B. Çomak, and M. Yüksek, "The Effect of Cryogenic Temperature Conditions on the Mechanical and Physical Properties of Self-Compacting Concretes " El-Cezeri Journal of Science and Engineering, vol. 3, 2016.
  • [7] Ü. Yurt and M. Emiroğlu, "Doğalgaz Depolama Tankları İçin Üretilmiş Betonların Mekanik Özelliklerinin Belirlenmesi," in 1. International Conference on Engineering Technology and Applied Sciences Afyon Kocatepe University, Turkey 21-22 April 2016, (ICETAS), 2016, pp. 432-435.
  • [8] Ü. Yurt, "Fracture Mechanics Performance Of Self-Consolidating Concrete Exposed To Cryogenic Temperatures " Ph.D., Departmant of Composite Materials Technologies, University of Düzce, 2015.
  • [9] D. E. Berner, "Behavior of prestressed concrete subjected to low temperatures and cyclic loading (cryogenic, offshore)," 8512756 Ph.D., University of California, Berkeley, Ann Arbor, 1984.
  • [10] D. E. Berner and B. C. Gerwick, Jr., "Static and cyclic behavior of structural lightweight concrete at cryogenic temperatures," in Ocean Space Utilization ’85, W. Kato, B. C. Gerwick, Jr., M. Homma, R. Lenschow, O. T. Magoon, C. C. Mei, et al., Eds., ed: Springer Japan, 1985, pp. 439-445.
  • [11] P. Domone and J. Illston, Construction Materials: Their Nature and Behaviour. Taylor and Francis Group e-Library: Spon Press, 2002.
  • [12] A. Hanaur, "Testing of concrete specimens for permeability at cryogenic temperatures," Magazine of Concrete Research, pp. 155-162, 1982.
  • [13] F. S. Rostásy and U. Pusch, "Strength and deformation of lightweight concrete of variable moisture content at very low temperatures," International Journal of Cement Composites and Lightweight Concrete, vol. 9, pp. 3-17, 2// 1987.
  • [14] L. Vandewalle, "Bond between a reinforcement bar and concrete at normal and cryogenic temperatures," vol. Journal of Materials Science letters, pp. 147-149, 1989.
  • [15] G. Lee, T. Shih, and K. Chang, "Mechanical properties of concrete at low temperature," Journal of cold regions engineering, vol. 2, pp. 13-24, 1988.
  • [16] Elices M., Planas J., and Maturana P., "Fracture of Concrete at Cryogenic Temperatures," in Fracture of Concrete and Rock, S. Shah and S. Swartz, Eds., ed: Springer New York, 1989, pp. 106-116.
Toplam 16 adet kaynakça vardır.

Ayrıntılar

Birincil Dil Türkçe
Konular Mühendislik
Bölüm Makaleler
Yazarlar

Ümit Yurt

Mehmet Emiroğlu

Yayımlanma Tarihi 30 Eylül 2018
Gönderilme Tarihi 1 Mart 2018
Yayımlandığı Sayı Yıl 2018 Cilt: 6 Sayı: 3

Kaynak Göster

IEEE Ü. Yurt ve M. Emiroğlu, “Kendiliğinden Yerleşen Betonların Düşük Sıcaklıklardaki Davranışının Tahribatsız Yöntemlerle İncelenmesi”, APJES, c. 6, sy. 3, ss. 8–15, 2018, doi: 10.21541/apjes.400243.

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