한국세라믹학회지 (Journal of the Korean Ceramic Society)

  • 제35권11호
  • /
  • Pages.1227-1232
  • /
  • 1998
  • /
  • 1229-7801(pISSN)
  • /
  • 2234-0491(eISSN)
한국세라믹학회 (The Korean Ceramic Society)
권호 표지

플라이애쉬 혼합시멘트에 미치는 Na$_2$SO$_4$의 영향

The Effects of Na$_2$SO$_4$ on the Hydration of Fly ash Blended Cement

  • 정석재 (연세대학교 세라믹공학과) ;
  • 방완근 (연세대학교 세라믹공학과) ;
  • 김창은 (연세대학교 세라믹공학과)
  • 발행 : 1998.11.01
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초록

In order to prohibit the delay of early stage hydration activator Na2SO4 was added to Fly Ash blended ce-ment and its effects were investigated. Various measurements such as Compressive strength Heat of hy-dration Pore size distribution Hydration products Microstructure were evaluated and the results show that specimens of Fly Ash(50wt%) with 5% Na2SO4 dramatically improved the compressive strength because pozzolanic reaction of Fly Ash and the formation of ettringite make th microstructure denser than OPC and flyash cement paste.

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참고문헌

  1. Rep. of Technical Committee 67-FAB Characterization of Fly Ash J.L. Alonso;K. Wesche
  2. 시멘트의 化學槪論 Fly Ash cement 笠井順一
  3. Annaki Di Chimica Applicate v.44 Controllo chim dei Cementi Pozzolanici N. Fratini
  4. Auxciments Portland Artificiels in Revud Des Materiax NR v.517 Controle Simple Des Cindres Volantes Pozzolanques L. Guinallome
  5. Highway Research Board Bulletin v.231 Pozzolamic Reactivity Study of Fly Ash R.J. Leonard
  6. Cement and Concrete Research v.2 no.1 Acceleration of the Reactivity of Fly ash by Chemical Actuvation Caijun Shi;Robert L. Day
  7. Portland Cement Associationm Skokie Ⅲ Fly ash in Cement and Concrete R. Helmuth
  8. Cement and Concrete Research v.23 no.6 Chemical Activation of Blended Cements made with Lime and Natural Pozzolans Caijun Shi;R.L. Day
  9. Cement and Concrete Research v.13 DTA-TG Study on the$Ca(OH)_2$-pozzolan Reaction in Cement Pastes Hydrated up to three year V. Kasselouri
  10. Material Research Society v.829 no.1 Study of the Hydration Reactions and Microstructure of Cemen-Fly Ash Pasters Ghosea
  11. J. Appl. Chem. v.16 Pozzolanic Properties of Fly Ashes as Determined by Chemical Method Watt J.P