Interceram - International Ceramic Review

, Volume 65, Issue 7, pp 28–34 | Cite as

Study on the Effect of Deflocculant Variation in High-Alumina Low-Cement Castable

  • R. SarkarEmail author
  • A. D. Samant
Review Papers


The effect of three different, types of deflocculants and their amounts on high-alumina low-cement castables is studied. Castable formulations were done as per continuous particle size distribution of a Dinger-Funk model using a distribution coefficient of q = 0.21. Castable compositions were processed as per conventional processing techniques and variation in properties were evaluated regarding flowability of the mix and densification and strength development after drying and firing at 900 and 1500°C. Phase analysis of the matrix phase was also done for the 1500°C compositions to evaluate the phase formations at high temperature in the presence of cement. The alumina-based dispersant was found to have resulted in better properties in the castable.


deflocculants type and amount castable properties 


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  1. [1]
    Musikant, S: What every engineer should know about ceramics. Preface, Marcel Dekker Inc., New York (1991)Google Scholar
  2. [2]
    Perkins, W.W.: Ceramics Glossary. The Amer. Ceram. Soc. (1984) 91Google Scholar
  3. [3]
    Hommer, H., Wutz, K.: Studies on a binder matrix of refractory castables-influence of dispersants on flow characteristics. Ceram. News 6 (2002) 46–50Google Scholar
  4. [4]
    Myrhe, B., Hundere, A.: On the influence of super fines in high alumina castables. 39th Internat. Colloquium on Refractories, Eurogress, Aachen, (1996) 184–188Google Scholar
  5. [5]
    Gerotto, M.V., Studart, A.R., Pileggi, R.G., Pandolfelli, V.C.: Zero-cement, high-alumina castables. Amer. Ceram. Soc. Bull. 79 (2000) 75–83Google Scholar
  6. [6]
    Myhre, B., Sandberg, B.: The use of microsilica in refractory castables. Proceeding of Internat. Seminar on Monolithic Refractory Materials, Tehran, Iran (1997) 113–140Google Scholar
  7. [7]
    Studart, A.R., Zhong, W., Pandolfelli, V.C.: Rheological design of zero-cement self-flow castables. Amer. Ceram. Soc. Bull. 78 (1999) [5] 65–72Google Scholar
  8. [8]
    Hommer, H., Wutz, K.: Recent developments in deflocculants for castables. Proceedings of the 9th Unified Internat. Technical Conference on Refractories, UNITECR 05, Orlando, FL, USA (2005) 186–190Google Scholar
  9. [9]
    Studart, A.R., Zhong, W., Pileggi, R.G., Bonadia, P., Pandolfelli, V.C.: Dispersion of microsilica-containing zero-cement high-alumina castables. Amer. Ceram. Soc. Bull. 79 (2000) [2] 49–55Google Scholar
  10. [10]
    Studart, A.R., Pandolfelli, V.C.: Thermomechanical behaviour of zero-cement, high-alumina castables. Amer. Ceram. Soc. Bull. 79 (2000) [10] 53–60Google Scholar
  11. [11]
    Sarkar, R., Mishra, A.: High alumina self flow castable with different cement binders. Refractories Manual (2012) 107–111Google Scholar
  12. [12]
    Studart, A.R., Gallo, J., Pandolfelli, V.C.: Citric and polyacrylic acids as dispersants for high-alumina refractory castables. Amer. Ceram. Soc. Bull. 81 (2002) [4] 36–44Google Scholar
  13. [13]
    Studart, A.R., Pandolfelli, V.C., Tervoort, E., Gauckler, L.J.: Selection of dispersants for high-alumina zero-cement refractory castables. J. of the Europ. Ceram. Soc. 23 (2003) 997–1004CrossRefGoogle Scholar
  14. [14]
    Vasilik, P.: New Dispersants (Deflocculants) for the Production of Refractory Castables. Novye Ogneupory 8 (2003) 28–31Google Scholar
  15. [15]
    Uchikawa, H., Hanehara, S., Sawaki, D.: The Role of Steric Repulsive Force in the Dispersion of Cement Particles in Fresh Paste Prepared with Organic Admixture Cement and Castable. Research 27 (1997) [1] 37–50Google Scholar
  16. [16]
    Sarkar, R., Parija, A.: Effect of alumina fines on high alumina self-flow low cement castables. Refractories World Forum 6 (2014) [1] 73–77Google Scholar
  17. [17]
    Monosi, S., Troli, R., Collepardi, M.: High-alumina cement-silica fume mixtures in the presence of superplasticizers, Proceedings of the fifth CANMET/ACI International Conference Rome, Italy, (1997) 615–635Google Scholar
  18. [18]
    Sarkar, R., Parija, A.: Effect of alumina fines on vibratable high alumina low cement castable. Interceram 63 (2014) [3] 113–116Google Scholar
  19. [19]
    Goberis, S., Pundiene, I.: Some Aspects of Influence of Microsilica and Admixtures on Hydration Kinetics of the Alumina Cement “Gorkal-40”. Materials Sci. (Medžiagotyra) 10 (2004) [1] 50–54Google Scholar
  20. [20]
    Pan, L.S., Qiu, X., Pang, Y.X., Yang, D.J.: Effect of Water-reducing Chemical Admixtures on Early Hydration of Cement Advances in Cement. Research 20 (2008) [30] 93–100Google Scholar
  21. [21]
    Wutz, K.: Advanced Polymers for Monolithic Refractories. Proceedings of the Biennial Wordwide Congress on Refractories UNITECR, (2001) 85–97Google Scholar
  22. [22]
    Abbasian, A.R., Rahimipour, M.R., Nouranian, H., Salardini, A.A., Amin, M.H.: Effect of deflocculants on microsilica containing ultra low cement Al2O3-SiC refractory castable. Industrial Ceram. 30 [2] (2010) 113–119Google Scholar
  23. [23]
    Hommer, H., Wutz, K.: The effect of organic deflocculants in castables. Proceedings of the Technical Association of Refractories 58 (2006) [5] 248–255Google Scholar
  24. [24]
    Bier, T., Parr, C.: Admixtures with Calcium Aluminate Cements and CAS Based Castables. Presented at the 28th Annual SA Ceramic Society Symposium (1996) 1–8Google Scholar
  25. [25]
    Goberis, S., Pundiene, I.: The medium refractory castable — a promising material for thermal power units. Refractories and Industrial Ceram. 43 (2002) [9–10] 306–309CrossRefGoogle Scholar
  26. [26]
    Hommer, H., von Seyer, J.: Impact of dispersant structure on workability and green strength development of LCC at different temperature. Proceedings of the 51th Internat. Colloquium on Refractories, Aachen, 15–16 October, (2008) 92–94Google Scholar
  27. [27]
    Von Seyer, J.: Influence of temperature and deflocculant on the handing properties of the high density high alumina castables. Refractory Manual (2008) 62–65Google Scholar
  28. [28]
    Goberis, S., Pundiene, L., Antonovich, V.: The effect of sodium tri-polyphosphate on the properties of medium cement refractory castables based on Gorkal-40 cement. Refractories and Industrial Ceram. 46 (2005) [6] 403–408CrossRefGoogle Scholar
  29. [29]
    Antonovich, V., Goberis, S., Pundienė, I., Stonys, R.: A new generation of deflocculants and microsilica used to modify the properties of a conventional refactory based on a chamotte filler. Refractories and Industrial Ceram. 47 (2006) [3] 178–182CrossRefGoogle Scholar
  30. [30]
    Goberis, S., Antonovich, V., Pundiene, I., Stonys, R.: Effect of the quality of microsilica on the flow properties of cement slurry and characteristics of low-cement refractory castable on a chamotte filler, Refractories and Industrial Ceram. 48 (2007) [2] 123–127CrossRefGoogle Scholar
  31. [31]
    Pundiene, I., Goberis, S., Stonys, R., Antonovich, V.: The influence of various plastizing elements on hydration and physical-mechanical properties of refractory castable with porous fillers. Proceedings of Conference on Refractory Castables (2005) 86–95Google Scholar
  32. [32]
    Hommer, H., Von Seyerl, J.: The effect of polycarboxylate ethers as deflocculants in microsilica containing castables. Proceedings of the 10th Biennial Wordwide Congress on Refractories UNITECR 07 (2007) 401–404Google Scholar
  33. [33]
    Mathieu, A.: Aluminous Cement with High Alumina Content and Chemical Binders, Presented at Engineering and Use of Monolithic Refractories. South Africa (1993) 8Google Scholar
  34. [34]
    Routschka, G., Daichennolt, D.M., Wutz, K.: New plasticizer for ultralow cement (ulcc) andalusite and bauxite castables. Interceram 49 (2000) [5] 356–359Google Scholar
  35. [35]
    Otroj, S., Mazban, R., Adibi, M., Nikoo, K.: The factors of influence on the properties of glumina-spinel self-flowing castables, The 48th Internat. Colloquium on Refractories Aachen (2005) 52–55Google Scholar
  36. [36]
    Von Seyerl, J.: Use of polycarboxylate ethers to improve workability of castables. Ceram. Forum Internat. 9 (2007) E46–E49Google Scholar
  37. [37]
    Pivinskii, Yu. E., Dyakin, Pav. V., Dyakin, P.V.: Dispersing (deflocculating) aluminas, Refractories and Industrial Ceram. 45 (2004) [3] 201–209CrossRefGoogle Scholar
  38. [38]
    Nagosoe, A., Oota, S., Onizuka, K., et al.: Dispersion and fluidity of alumina powder suspension. Taikabutsu Refr. 50 (1998) [7] 389–394Google Scholar
  39. [39]
    Kriechbaum, J.W., Laurich, O., Van Jarsel, D.: The matrix advantage system — New raw materials for low moisture self-leveling and vibration placed alumina and magnesium aluminate spinel castables. Proceedings of Unitecr’97, New Orleans (1997) 645–655Google Scholar
  40. [40]
    Van Garsel, D., Laurich, J.O., Boor, A.: Synthetic raw materials — a clue to advanced technologies in the production of refractories. Proceedings of Internat. Conf. “Physical chemistry and technology of oxide-silicate materials” (2000) 13–26Google Scholar
  41. [41]
    Buizinene, I.D., Pundiene, I.: Effect of amount of deflocculant on change in physico-mechanical properties of medium-cement heat-resistant concretes during drying and heat treatment. Refractories and Industrial Ceram. 55 (2014) [2] 121–127CrossRefGoogle Scholar
  42. [42]
    Pundiene, I., Antonovic, V., Stonys, R., Aleknevicius, M., Buiziniene, I.D., Gailius, A.: The effect of deflocculants on the structure and physical-mechanical properties of fireclay refractory castables. Materials Science (Medziagotyra) 18 (2012) [4] 390–395Google Scholar
  43. [43]
    Otroj, S., Sagaeian, A., Daghighi, A., Nemati, Z.A.: The effect of nano-size additives on the electrical conductivity of matrix suspension and properties of self-flowing low-cement high alumina refractory castables. Ceramics Internat. 36 (2010) [4] 1411–1416CrossRefGoogle Scholar
  44. [44]
    Pivinskii, Yu. E., Dobrodon, D.A., Ermak, Yu. N. Cherevatova, A.V.: Eeffect of thinning agents on properties of high-alumina ceramic castables. Refractories and Industrial Ceram. 45 (2004) [2] 78–83CrossRefGoogle Scholar
  45. [45]
    Otroj, S., Nilforoushan, M.R., Marzban, R.: The effect of additives on the properties of high alumina low-cement self-flowing castables. Ceramics — silikáty 53 (2009) [1] 42–47Google Scholar
  46. [46]
    Andreasen, A.H.M.: Validity of Stokes’ Law for non-spherical particles. Kolloid-Zeitschrift 48 (1929) [2] 175–179CrossRefGoogle Scholar
  47. [47]
    Andreasen, A.H.M.: Relation between grain size and interstitial space in products of unconsolidated granules. Kolloid-Zeitschrift 50 (1930) [3] 217–228CrossRefGoogle Scholar
  48. [48]
    Dinger, D.R., Funk, J.E.: Particle packing, Part I — Fundamentals of particle packing monodisperse spheres. Interceram 41 (1992) [1] 10–14Google Scholar
  49. [49]
    Dinger, D.R., Funk, J.E.: Particle packing, Part II — Review of packing of polydisperse particle system. Interceram 41 (1992) [2] 95–97 and [3] 176–179Google Scholar
  50. [50]
    Dinger, D.R., Funk, J.E.: Particle packing, Part III — Discrete versus continuous particle sizes. Interceram 41 (1992) [5] 332–334Google Scholar
  51. [51]
    Fang., H.S., Cha, C.H., Yong, S.Y.: Development of self flow castable. UNITECR’95, Proceedings, Vol. 1. Kyoto, Japan (1995)Google Scholar

Copyright information

© Springer Fachmedien Wiesbaden 2016

Authors and Affiliations

  1. 1.Department of Ceramic EngineeringNational Institute of TechnologyRourkelaIndia

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