한국세라믹학회지 (Journal of the Korean Ceramic Society)

  • 제47권5호
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  • Pages.357-364
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  • 2010
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  • 1229-7801(pISSN)
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  • 2234-0491(eISSN)
한국세라믹학회 (The Korean Ceramic Society)
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숏크리트용 고분말도 슬래그 시멘트의 특성

A Study on Properties of High Blaine Slag Cement for Shotcrete

  • 김재영 ((주)성신양회 기술연구소) ;
  • 염수경 ((주)성신양회 기술연구소) ;
  • 유동우 ((주)성신양회 기술연구소) ;
  • 최현국 ((주)성신양회 기술연구소)
  • 투고 : 2010.08.09
  • 심사 : 2010.09.14
  • 발행 : 2010.09.30
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초록

This study was performed to get basic information about properties of high blaine slag cement(HSC) to use shotcrete(or sprayed concrete and mortar). Particle size distribution, setting time and compressive strength test, analysis like as SEM, DSC thermal analysis, XRD was carried out to investigate principle properties of HSC. Setting time of HSC was delayed slightly, but influence of accelerators was more bigger than ordinary portland cement(OPC). Compressive strength of HSC at 28 days was more higher than OPC regardless of using accelerators. Results of analysis showed early period hydration products of HSC is more small and located widely, because of the interface of between cement particle and water is increased as specific surface of cement increase. From the SEM observation and analysis of DSC and XRD results, aluminates accelerators bring on some hydration products like as calcium aluminium hydrates, alkali free accelerators increases ettringite and monosulfates. Aluminates accelerators has a advantage of setting time and early strength, alkali free accelerators increases strength after 7 days.

키워드

참고문헌

  1. Peter C. Hewlett, "Lea's Chemistry of Cement and Concrete", 4th edition, pp633-674, ANORLD, London, 1997.
  2. J. T. Song, J. Y. Kim, H. K. Choi, and S. H. Byun, "Properties of Blended Cement Using Ground Blastfurnace Slag with Low Blaine Value (in Korean)," J. Kor. Ceram. Soc., 37 [1] 70-6 (2000).
  3. Y. Y. Kim, J. S. Kim, G. J. Ha, and J. K. Kim, "Development of an ECC (Engineered Cementitious Composite) Desingned with Ground Granulated Blast Furnace Slag (in Korean)," J. Kor. Con. Insti., 18 [1] 21-8 (2006). https://doi.org/10.4334/JKCI.2006.18.1.021
  4. S. B. Park, J. S. Kim, and Y. Y. Kim, "Rheology Control of Cement Paste for Applying ECC Produced with Slag Particles to Self-Consolidating and Shotcreting Process (in Korean)," J. Kor. Con. Insti., 20 [1] 67-75 (2008). https://doi.org/10.4334/JKCI.2008.20.1.067
  5. G. H. Lee, S. K. Kim, S. H. Lee, S. J. Kim, and J. W. Park, "Effect of Alkali-Activator and Method of Pulverization and Fineness on the Hydration in Slag-Cement (in Korean)," Proceedings of the Kor. Con. Insti., 20 [2] 525-28 (2008).
  6. D. H. Ryu, J. Y. Jeun, H. S. Kim, H. J. Kim, C. D. You, and H. J. Hwang, "A Study on the Low Heat-Blended Cement using Blast Furnace Slag with Low Blaine Value(in Korean)," Proceedings of the Kor. Con. Insti., 21 [2] 313-14 (2009).
  7. J. T. Song, J. Y. Kim, and J. Y. Jun, "Effect of the Fineness of the Properties of Portland Cement (in Korean)," J. Kor. Ceram. Soc., 36 [1] 77-81 (1999).
  8. J. Y. Shin, J. Y. Kim, J. S. Hong, J. K. Suh, and J. S. Rho, "The Hydraulic Characteristics of Liquid Shotcrete Accelerators within Cement System (in Korean)," J. Kor. Con. Insti., 17 [6] 1011-18 (2005). https://doi.org/10.4334/JKCI.2005.17.6.1011
  9. S. S Lee, "A Study on the Strength and Flowing Properties of Cementless Type Eco-friendly Inorganic Composites by Using Alkali Accelerator (in Korean)," J. Archi. Insti. Kor., 26 [5] 67-74 (2005).
  10. J. W. Ahn, J. S. Cho, H. S. Kim, C. C. Han, and H. Kim, "Activation Property of Blast Furnace Slag by Alkaline Activator (in Korean)," J. Kor. Ceram. Soc., 40 [10] 1005-14 (2003). https://doi.org/10.4191/KCERS.2003.40.10.1005
  11. Palglia, F. Wombacher, and H, Bohni, "The Influence of Alkali-free and Alkaline Shotcrete Accelerators within Cement Systems-I. Characterization of the Setting Behavior," Cem. Concr. Res., 31 [6] 913-18 (2001) https://doi.org/10.1016/S0008-8846(01)00509-9
  12. Luiz Roberto Prudencio Jr, "Acceleration Admixtures for Shotcrete," Cem. Concr. Compo., 20 [2-3] 213-19 (1998). https://doi.org/10.1016/S0958-9465(98)80007-3
  13. C. G. Han, M. C. Han, and S. W. Kim, "Effect of the Fineness of the Cement made by Particle Size Screening Method on Mechanical Properties of the Concrete (in Korean)," J. Archi. Insti. Kor., 23 [8] 123-30 (2007).
  14. K. H. Sho and K. M. Kim, "A Study onf the Practical Application of High Early Strength Type Concrete Using Fine Particle Cement (in Korean)," J. Archi. Insti. Kor., 25 [6] 99-106 (2009).

피인용 문헌

  1. Effect of Gypsum on Hydration Properties of Natural Hydraulic Lime vol.24, pp.1, 2015, https://doi.org/10.7844/kirr.2015.24.1.12