SIFCON ile Üretilen Beton Yolların Bazı Mekanik Özelliklerinin Optimizasyonu

Yıl 2019, Cilt: 12 Sayı: 1, 411 - 424, 24.03.2019

Osman Ünsal Bayrak , Muhammed Ziya Bingöl Halim Ferit Bayata

https://doi.org/10.18185/erzifbed.476045

Öz

Son zamanlarda geliştirilen kompozit bir malzeme
olan çimento bulamacı emdirilmiş lifli beton (SIFCON), inşaat mühendisliği
alanında çok popüler malzemelerden biri olmuştur. Yüksek dayanımlı betonlardan
en önemli farkı kırılma sırasında sünek davranış göstermesidir. Bu çalışmada
SIFCON'un rijit kaplama olarak kullanımı araştırılmıştır. Deneyler, L₁₆
ortogonal dizi tekniği kullanılarak her biri dört seviyeli dört faktör ile
tasarlanmıştır. Faktörler ve seviyeleri 40, 55, 65, 80 lif
boyunun çapına oranı, 3%, 6%, 9%, 12% lif hacmi, 0,30, 0,35, 0,40, 0,45
su/çimento oranı ve 0%, 5%, 10%, 15% silis dumanı oranıdır. Deney sonuçları Taguchi
yöntemi ile varyans analizi (ANOVA) tekniği kullanılarak değerlendirilmiştir. ANOVA'ya
göre, beton kaplamaların basınç ve eğilme mukavemetinde en önemli rolü lif
boyunun çapına oranı (L/d) oynamıştır. Ayrıca basınç mukavemeti için optimum koşullar 55
(L/d), % 3 lif oranı, 0.45 su / bağlayıcı oranı ve % 5 SD oranı, eğilme
mukavemeti için 80 L/d, % 12 lif oranı, 0.45 su / bağlayıcı oranı ve % 5 SD
oranı olarak bulunmuştur. Optimum koşullarda
145.72 MPa ve 31.58 MPa'lık maksimum basınç ve eğilme dayanımı elde edilmiştir.

Anahtar Kelimeler

Beton Yollar, SIFCON, Çelik Lif, Taguchi Metodu

Optimization of the Some Mechanical Properties of Concrete Pavements Produced with SIFCON

Öz

Slurry Infiltrated Fiber Reinforced Concrete (SIFCON) is one of the recently developed composite material
became a very popular material in civil engineering. The difference between high strength concrete (HSC) and
SIFCON is the ductile behavior at failure. In this study, usage of SIFCON as a rigid pavement is investigated.
The experiments were designed according to Taguchi method using orthogonal array technique in an L16 array
with four factors with four levels each. The factors and their levels are 40, 55, 65, 80 fiber aspect ratio, 3%, 6%,
9%, 12% fiber volume, 0,30, 0,35, 0,40, 0,45 water/cement ratio (w/c) ratios and 0%, 5%, 10%, 15% silica fume
ratio. Analysis of variance technique (ANOVA) was used for analyzing the test results. According to the
ANOVA, the fiber aspect ratio (L/d) plays a significant role in compressive and flexural strength. Moreover,
the optimum conditions were found to be 55 fiber aspect ratio, 3%fiber content, 0.45 w/c ratio and 5% SF ratio
for compressive strength and 80 fiber aspect ratio, 12%fiber content, 0.45 w/c ratio and 5% SF ratio for flexural
strength. Maximum compressive and flexural strength of 145.72 and 31.58 MPa was obtained under the
optimum conditions respectively.

Anahtar Kelimeler

Concrete Pavements, SIFCON, Steel Fiber, Taguchi Method

Kaynakça

• Abdou, H. M., Naaman, A. E.,Wight, J. K. (1989). Cyclic response of reinforced concrete connections using cast-in-place sifcon matrix (No. UMCE 89-1).
• ACI, C. 1996. "State-of-the-art report on fiber reinforced plastic (FRP) reinforcement for concrete structures. Closure", Aci Structural Journal, 93(1), 151-151.
• Bayramov, F., Taşdemir, C.,Taşdemir, M. 2004. "Optimisation of steel fibre reinforced concretes by means of statistical response surface method", Cement and Concrete Composites, 26(6), 665-675.
• Beglarigale, A., Yalçınkaya, Ç., Yiğiter, H.,Yazıcı, H. 2016. "Flexural performance of SIFCON composites subjected to high temperature", Construction and Building Materials, 104, 99-108.
• Bingöl, M. Z. (2017) "Optimization of Compressive and Flexural Strength of Concrete Pavements Produced with SIFCON". Unpublished MSc Thesis, Ataturk University Graduate School of Natural and Applied Science.
• Chan, Y. W.,Chu, S. H. 2004. "Effect of silica fume on steel fiber bond characteristics in reactive powder concrete", Cement and Concrete Research, 34(7), 1167-1172.
• Erdoğan, T. Y. (1997). "Admixtures for concrete".Middle East Technical University Press.
• Eren, Ö.,Celik, T. 1997. "Effect of silica fume and steel fibers on some properties of high-strength concrete", Construction and Building Materials, 11(7-8), 373-382.
• Farnam, Y., Moosavi, M., Shekarchi, M., Babanajad, S.,Bagherzadeh, A. 2010. "Behaviour of slurry infiltrated fibre concrete (SIFCON) under triaxial compression", Cement and Concrete Research, 40(11), 1571-1581.
• Hinislioglu, S.,Bayrak, O. U. 2004. "Optimization of early flexural strength of pavement concrete with silica fume and fly ash by the Taguchi method", Civil Engineering and Environmental Systems, 21(2), 79-90.
• Hinislioglu, S.,Bayrak, O. U. 2005. "A robust approach for evaluating modulus of elasticity of pavement concrete", Indian Journal of Engineering and Materials Sciences, 12(2), 111-116.
• Ikpong, A.,Okpala, D. 1992. "Strength characteristics of medium workability ordinary Portland cement-rice husk ash concrete", Building and Environment, 27(1), 105-111.
• Ipek, M., Aksu, M., Yilmaz, K.,Uysal, M. 2014. "The effect of pre-setting pressure on the flexural strength and fracture toughness of SIFCON during the setting phase", Construction and Building Materials, 66, 515-521.
• Karadelis, J. N.,Lin, Y. 2015. "Flexural strengths and fibre efficiency of steel-fibre-reinforced, roller-compacted, polymer modified concrete", Construction and Building Materials, 93, 498-505.
• Lankard, D. R. 1984. "Slurry infiltrated fiber concrete (SIFCON): Properties and applications", MRS Online Proceedings Library Archive, 42.
• Lankard, D. R. (1985). Preparation, properties and applications of cement-based composites containing 5 to 20 percent steel fiber. Paper presented at the Steel Fibre Concrete US-Sweden joint seminar, Stockholm, Ed. by Shah, SP and Skarendahl, A.(June 1985).
• Lankard, D. R.,Newell, J. K. 1984. "Preparation of highly reinforced steel fiber reinforced concrete composites", Special Publication, 81, 287-306.
• Lee, J.-H. 2017. "Influence of concrete strength combined with fiber content in the residual flexural strengths of fiber reinforced concrete", Composite Structures, 168, 216-225.
• Lee, J.-H., Cho, B.,Choi, E. 2017. "Flexural capacity of fiber reinforced concrete with a consideration of concrete strength and fiber content", Construction and Building Materials, 138, 222-231.
• Mehta, P. K. 1986. "Concrete. Structure, properties and materials".
• Musmar, M. 2013. "Tensile strength of steel fiber reinforced concrete", Contemporary Engineering Sciences, 6(5), 225-237.
• Neville, A. M. (1995). "Properties of concrete", (Vol. 4).Longman London.
• Rao, H. S., Ghorpade, V. G., Ramana, N.,Gnaneswar, K. 2010. "Response of SIFCON two-way slabs under impact loading", International Journal of Impact Engineering, 37(4), 452-458.
• Richard, P.,Cheyrezy, M. 1995. "Composition of Reactive Powder Concretes", Cement and Concrete Research, 25(7), 1501-1511.
• Roy, R. 1990. "A primer on the Taguchi method, competitive manufacturing series", New York, 7-80.
• Shah, A. A.,Ribakov, Y. 2011. "Recent trends in steel fibered high-strength concrete", Materials & Design, 32(8), 4122-4151.
• Taguchi, G. 1962. "Tables of orthogonal arrays and linear graphs", Maruzen, Tokyo.
• Teng, T.-L., Chu, Y.-A., Chang, F.-A., Shen, B.-C.,Cheng, D.-S. 2008. "Development and validation of numerical model of steel fiber reinforced concrete for high-velocity impact", Computational Materials Science, 42(1), 90-99.
• Tuyan, M.,Yazıcı, H. 2012. "Pull-out behavior of single steel fiber from SIFCON matrix", Construction and Building Materials, 35, 571-577.
• Wang, Z., Wu, J.,Wang, J. 2010. "Experimental and numerical analysis on effect of fibre aspect ratio on mechanical properties of SRFC", Construction and Building Materials, 24(4), 559-565.
• Yazıcı, Ş., İnan, G.,Tabak, V. 2007. "Effect of aspect ratio and volume fraction of steel fiber on the mechanical properties of SFRC", Construction and Building Materials, 21(6), 1250-1253.