Krom magnezit tuğla tozunun portland çimentosunun priz başlama ve bitiş sürelerine etkisinin bulanık mantıkla tahmini

Bu çalışmada, portland çimentosunun (PÇ 42,5) ağırlıkça %0, %5, %10, %15, %20 ve %25’i yerine Krom Mağnezit tuğla tozları konularak altı değişik karışım elde edilmiş ve çimentonun priz başlama ve bitişine olan etkisi araştırılmıştır. Sonuç olarak, %5 katkılı Krom Mağnezit tuğla tozunun çimentoda priz başlama ve bitiş sürelerini kontrol çimentosuna göre nispeten kısalttığı ancak miktar arttıkça priz başlama ve bitiş süresinin uzadığı tespit edilmiştir. Deneylerle belirlenmemiş olan priz başlama ve bitiş süresinin Krom Mağnezit tuğla tozu miktarına bağlı olarak tahmin edilebilmesi amacıyla da Bulanık Mantık metoduyla tahmin modeli oluşturulmuş ve oluşturulan modelin bu amaç için kullanılabileceği gösterilmiştir.

Prediction the effect of chrome magnesit brick dust on the starting and finishing setting time of portland cement with fuzzy logic

In this study, Portland cement (PÇ 42,5) replaced with Chrome Magnesit brick dust as a ratio of its weight of %0, %5, %10, %15, %20, and %25. By this procedure, six different mixtures were prepared and effect of cement was investigated on the starting and finishing time of the setting. As a result, while the mixture with 5% Chrome Magnesit brick dust decreases the starting and finishing setting time in small amount with, the increasing amount of the Chrome Magnesit increases the starting and finishing setting time. Also, by using Fuzzy Logic method, prediction model was constituted based on the quantity of Chrome Magnesit brick dust to predict the starting and finishing time of the setting for cement which could not be determined with experimental. It was showed that the prediction model could be used to predict the starting and finishing time of the setting for cement based on the quantity of brick dust.

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  • 1. H.F.W. Taylor, Cement Chemistry., Academic Press, London (1990).
  • 2. D.P. Bentz, Three-dimensional computer simulation of Portland cement hydration and microstructure development. The Journal of the American Ceramic Society. 80 1 (1997), pp.3– 21.
  • 3. Y.M. Zhang and T.J. Napier-Munn, Effects of particle size distribution, surface area and chemical composition on Portland cement strength. Powder Technology. 83 3 (1995), pp. 245–252.
  • 4. B. Osbaeck and V. Johansen, Particle size distribution and rate of strength development of Portland cement. The Journal of the American Ceramic Society.. 72 2 (1989), pp. 197–201
  • 5. N.J. Carino, The maturity method: theory and application. Cement Concrete and Aggregates, 6 2 (1984), pp. 61–73.
  • 6. S. Tsivilis, S. Tsimas, A. Benetatou and E. Haniotakis, Study on the contribution of fineness on cement strength. ZKG 43 (1990), pp. 26–29.
  • 7. B. Osbaeck, The influence of alkalis on the strength properties of Portland cement. ZKG 32 (1979), pp. 72–77.
  • 8. F.F. Radjy and D.W. Vunic, Heat signature testing of concrete. In: Proceedings of Structural Materials Technology—An NDT Conference (Atlantic City, NJ, 1994), Techomic Publishing, Lancaster, PA (1994), pp. 8–15.
  • 9. Şimşek, O., Yapı Malzemeleri, A.Ü. Basımevi, Ankara 2000.
  • 10. TS EN 197–1 “Genel Çimentolar- Bileşim, Özellikler ve Uygunluk Kriterleri”, Türk Standartları Enstitüsü, Ankara, 2002.
  • 11. Zhang, L,M., “Investigation of Phosphate Cement-Based Binder with Super High Early Strength for Repair of Concrete”, J. Wuhan Univ. Technol.-Mat Sci.Edit., 2001.
  • 12. Pera, J., Soudee, E., “Influence of Magnesia Surface on the setting Time of Magnesia Phosphate Cement”, Cement Concrete Research, 32 (1), 153-157, 2002.
  • 13. Nilforoushan, Mr., Sharp, J.h., “The effect of additions of Alkalıne-Earth Metal Chlorides on the Setting Behavior of a Refractory Calcium Aluminate Cement”, Cement and Concrete Research, 25 (7), 1523-1534, 1995.
  • 14. Harmuth, H., Nevherz H., Schrempf S., “Investigation of a Magnesia Binder in the System MgO-Mg(CH3COO)2-H2O”, Cement and Concrete Research, 28 (6), 811-814, 1998.
  • 15. Çelik, M.H., Şimşek, O., Sancak, E., “Silis Dumanı Kullanımının Çimentonun Priz Başlama ve Bitiş Sürelerine Etkisi”, Politeknik Dergisi Cilt:4 Sayı: 4, 55-60, 2001.
  • 16. Tantawi, S.H., “Durability of Blended Cement Incorporating Condenset Silika Fume (CSF) in Agressive Media in the Presence of Concrete Admixtures”, Iterceram C.51, No:5 342-348, 2002.
  • 17. Naik, T.R., Singh S.S., “Influence of Fly Ash on Seeing and Hardening Characteristics of Concrete System”, ACI Materials Journal, 94 (5), 355- 360, 1997.
  • 18. Çelik M.H., Aruntaş H.Y., Baran Y., “Seyitömer ve Çayırhan Uçucu Küllerinin Portland Çimentosu-Uçucu Kül (PÇ-UK) Hamurunun Priz Başlama ve Bitiş Sürelerine Etkisi”, Politeknik Dergisi Cilt:6 Sayı:1, 397-409, 2003.
  • 19. Roy S., Ghosh S.N., Case Study of Rising Cement Mill Temperatures. Incidence of False Set ZKG, No:4 206-208, 2001.
  • 20. Çelik M. H., Özgan E., Kösen N., “Krom Magnezit Tuğla Tozunun Portland Çimentosunun Priz Başlama ve Bitiş Sürelerine Etkisi” Politeknik Dergisi,Cilt 7, Sayı 1, 2004.
  • 21. S. Tsivilis and G. Parissakis, A mathematicalmodel for the prediction of cement strength. Cement and Concrete Research, 25 (1995), pp. 9– 14.
  • 22. C.E. de Siquera Tango, An extrapolation method for compressive strength prediction of hydraulic cement products. Cement and Concrete Research, 28 7 (1998), pp.969–983.
  • 23. S. Akkurt, S. Ozdemir, G. Tayfur and B. Akyol, The use of GA-ANNs in the modelling of compressive strength of cement mortar. Cement and Concrete Research, 33 (2003), pp. 973– 979.
  • 24. M. Sebastia, I.F. Olmo and A. Irabien, Neural network prediction of unconfined compressive strength of coal fly ash–cement mixtures. Cement and Concrete Research, 33 (2003), pp. 1137–1146.
  • 25. G. Fa-Liang, A new way of predicting cement strength-fuzzy logic. Cement and Concrete Research. 27 (1997), pp. 883–888.
  • 26. European Committee for Standardization (CEN), Methods of testing cement: Part 1. Determination of strength, European Standard EN 196-1.
  • 27. Akurt S., Tayfur G., Can S., “Fuzzy logic model for the prediction of cement compressive strength” Cement and Concrete Research, Vol:34, Issue:8, Pages 1429-1433, 2004.
  • 28. TS EN 196–3 “Çimento Deney Metotları- Bölüm3: Priz Süresi ve Hacim Genleşme Tayini” Türk Standartları Enstitüsü, 2002.
  • 29. Matlab Documentation Set, The MathWorks Inc, 2004.
  • 30. E., H., Mamdani, S, Assilian., “An Experiment in Linguistic Synthesis with a Fuzzy Logic Controller” International Journal of Man- Machine Studies, 7 (1): 1-15, 1975.
  • 31. Sugeno, M., “Introductory survey of fuzzy control”, INFO. Sci., (36):1-2, 59-83. 1985.
  • 32. Zadeh L., “Man and Computer, Outline of a new approach to the analysis of complex systems and decision processes”, IEEE Trans, Vol. SMC-3 28- 44, 1973.