Korean Chemical Engineering Research

The Korean Institute of Chemical Engineers (한국화학공학회)
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Characteristics of Polyester Polymer Concrete Using Spherical Aggregates from Industrial By-Products(II)(Use of Fly Ash and Atomizing Reduction Steel Slag)

산업부산물 구형골재를 사용한 폴리에스테르 폴리머 콘크리트의 특성(II) (플라이 애쉬와 아토마이징 제강 환원슬래그 사용)

  • Hwang, Eui-Hwan (Department of Chemical Engineering, Kongju National University) ;
  • Kim, Jin-Man (Department of Architecture, Kongju National University)
  • Received : 2014.08.21
  • Accepted : 2014.09.17
  • Published : 2015.06.01
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Abstract

For the cost down of polymer concrete, It is very important to reduce the use amount of polymer binder, which occupies most of the production cost of polymer concrete. Fly ash and atomizing reduction steel slag are spherical materials obtained from industrial by-products. Spherical atomizing reduction steel slag was manufactured using steel slag from reduction process of ladle furnace by atomizing technology. To investigate the physical properties of polymer concrete, polymer concrete specimens were prepared with the various proportions of polymer binder and replacement ratios of atomizing steel slag. Results showed that compressive and flexural strengths of the specimens were remarkably increased with the addition amount of polymer binder and the replacement ratios of atomizing steel slag. In the hot water resistance test, compressive strength, flexural strength, bulk density and average pore diameter decreased but total pore volume and pore diameter increased. We found that polymer concrete developed in this study reduced the amount of polymer binder by 18.2% compared to the conventional product because of the remarkable improvement of workability of polymer concrete using spherical fly ash and atomizing reduction steel slag instead of calcium carbonate (filler) and river sand (fine aggregate).

폴리머 콘크리트의 원가절감을 위해서 생산비의 대부분을 차지하는 폴리머 결합재의 사용량을 절감하는 것이 매우 중요하다. 산업부산물로 얻을 수 있는 플라이 애쉬와 아토마이징 제강 환원슬래그는 구형의 재료이다. 구형의 제강환원슬래그는 래들로 환원공정에서 생산되는 제강슬래그를 아토마이징 기술로 제조하였다. 폴리머 콘크리트 복합재료의 제 물성을 조사하기 위하여 폴리머 결합재의 첨가율과 아토마이징 제강 환원슬래그의 대체율에 따라 다양한 배합의 폴리머 콘크리트 공시체를 제조하고 물성시험을 실시하였다. 시험결과, 아토마이징 제강 환원슬래그의 대체율과 폴리머 결합재의 첨가량이 증가됨에 따라 공시체의 압축 및 휨강도는 현저하게 향상되었다. 내열수성시험에서 압축강도, 휨강도, 밀도 및 세공의 평균직경은 감소되었으나 총세공량과 공극률은 증가되었다. 탄산칼슘(충전재)과 강모래(잔골재)대신 구형의 플라이 애쉬와 아토마이징 제강 환원슬래그를 사용하여 만든 폴리머 콘크리트의 작업성이 현저히 개선되어 본 연구에서 개발된 폴리머 콘크리트는 종래의 제품보다 폴리머 결합재의 사용량을 18.2% 절감할 수 있게 되었다.

Keywords

References

  1. Gorninski, J. P., Dal Molin, D. C. and Kazmierczak, C. S., "Strength Degradation of Polymer Concrete in Acidic Environments," Cem. Conc. Compos., 29, 637-645(2007). https://doi.org/10.1016/j.cemconcomp.2007.04.001
  2. Murhaf Haidar, Elhem Ghorbel and Houssam Toutanji, "Optimization of the Formulation of Micro-Polymer Concretes," Const. Build. Mater., 25, 1632-1644(2011). https://doi.org/10.1016/j.conbuildmat.2010.10.010
  3. Fowler, D. W., "Polymers in Concrete: a Vision for the 21st Century," Cem. Conc. Com., 21, 449-452(1999). https://doi.org/10.1016/S0958-9465(99)00032-3
  4. Lech Czarnecki, Andrzej Garbacz and Jonna Kurach, "On the Characterization of Polymer Concrete Fracture Surface", Cem. Conc. Compos., 23, 399-409(2001). https://doi.org/10.1016/S0958-9465(01)00009-9
  5. Ohama, Y., "Recent Research and Development Trends of Concrete-Polymer Composites in Japan," Proc. 12th Inter. Cong. on polym. in Conc., September, Chuncheon(2007).
  6. Dionys Van Gemert, Lech Czarnecki, et al., "Cement Concrete and Concrete-Polymer Composites: Two Merging Worlds," Cem. Conc. Compos., 27, 926-933(2005). https://doi.org/10.1016/j.cemconcomp.2005.05.004
  7. Jose T. San-Jose, Ingo J. Vegas and Moises Frias, "Mechanical Expectations of a High Performance Concrete Based on a Polymer Binder and Reinforced with Non-Metallic Rebars," Const. Build. Mater., 22, 2031-2041(2008). https://doi.org/10.1016/j.conbuildmat.2007.08.001
  8. Gorninski, J. P., Dal Molin, D. C. and Kazmierczak, C. S., "Comparative Assessment of Isophtalic and Orthophtalic Polyester Polymer Concrete: Different Costs, Similar Mechanical Properties and Durability," Const. Build. Mater., 21, 546-555(2007). https://doi.org/10.1016/j.conbuildmat.2005.09.003
  9. Hwang, E. H. and Kim, J. M., "Characteristics of Concrete Polymer Composite Using Atomizing Reduction Steel Slag (I) (Use of PMMA as a Shrinkage Reducing Agent)," Appl. Chem. Eng., 25(2), 181-187(2014). https://doi.org/10.14478/ace.2014.1003
  10. Hwang, E. H. and Kim, J. M., "Characteristics of Concrete Polymer Composite Using Atomizing Reduction Steel Slag as an Aggregate (II) (Use of Polystyrene as a Shrinkage Reducing Agent)," Appl. Chem. Eng., 25(4), 380-385(2014). https://doi.org/10.14478/ace.2014.1044
  11. Bae., G. B., Lee, S. G., Yoon, H. J. and Lee, J. D., "Preparation and Characteristic of Sheet Molding Compound using Unsaturated Polyester Resin with Low Profile Agent of Polystyrene," Korean Chem. Eng. Res., 50(3), 588-593(2012). https://doi.org/10.9713/kcer.2012.50.3.588
  12. Hwang, E. H., Kim, J. M. and Yeon, J. H., "Characteristics of Polyester Polymer Concrete Using Spherical Aggregates from Industrial By-Products," J. Appl. Polym. Sci., 2905-2912(2013).
  13. Kim, J. M., Cho, S. H., Oh, S. Y. and Kwak, E. G., "The Properties of Underwater-Harding Epoxy Mortar Used the Rapidly Cooled Steel Slag," J. Korea Conc. Instit., 19, 39-45(2007). https://doi.org/10.4334/JKCI.2007.19.1.039
  14. Hwang, E. H., Lee, C. H. and Kim, J. M., "Physical Properties of Polymer Concrete Composite Using Rapid-Cooled Steel Slag (I)," Appl. Chem. Eng., 23, 210-216(2012).
  15. Hwang, E. H., Lee, C. H. and Kim, J. M., "Physical Properties of Polymer Concrete Composite Using Rapid-Cooled Steel Slag (II)," Appl. Chem. Eng., 23, 409-415(2012).
  16. Montgomery, D. G. and Wang, G., "Instant-Chilled Steel Slag Aggregate in Concrete(Strength Related Properties)," Cem. Conc. Res., 21, 1083-1091(1991). https://doi.org/10.1016/0008-8846(91)90068-S
  17. Montgomery, D. G. and Wang, G., "Instant-Chilled Steel Slag Aggregate in Concrete(Fracture Related Properties)," Cem. Conc. Res., 22, 755-760(1992). https://doi.org/10.1016/0008-8846(92)90098-G
  18. O. S. Oh et al., Patent No. 10-0098062-0000(1996).
  19. Semerad, E., Kremnitzer, Lacom, P., Holub, W. F. and Sattler, P., "Influence of Polymer Addition on Microscopic Properties," Proc. 5th Inter. Cong. on polym. in Conc., September, Brighton (1987).

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