Proceedings of the Korea Concrete Institute Conference (한국콘크리트학회:학술대회논문집)

Korea Concrete Institute (한국콘크리트학회)
권호 표지

Fluidity and Compressive Strength Properties of Cement-Mortar admixed with II-Anhydrite and Pozollanic Fine Powders

불산부생 II -형 무수석고와 포졸란 미분체가 혼입된 시멘트.몰탈 유동성 및 압축강도 특성

  • 김도수 (충남대학교 정밀공업화학과 대학원) ;
  • 김재호 (충남대학교 정밀공업화학과 대학원) ;
  • 조민형 (대전대학교 건축공학과 대학원) ;
  • 전진환 (대전대학교 건축공학과 대학원) ;
  • 남재현 (대전대학교 건축공학과) ;
  • 노재성 (충남대학교 정밀공업화학과)
  • Published : 1996.10.01
Download PDF
⟨ Previous Next ⟩

Abstract

As II-anhydrite reacts with C3A(aluminate), C4AF(ferrite) at initial hydration of cement and assists the hydrolysis of C3S(calcium silicate), the production rate of ettringite(3C3A.3CaSO4.32H2O) and C-S-H gel was acclerated. It was known that compressive strength of cement concrete improved due to the effect of II-anhydrite. For the checking these effects of II-anhydrite, the fluidity and compressive strength of cementmortar admixed with II-anhydrite and pozollanic fine powders were investigated. By means of SEM analysis, the surface structure of mortar with the condition of steam curing at curing days=28 was investigated. As a result of this experiment, it was examined that II-anhydrite had an increase on the fluidity of cementpaste and compressive strength of mortar.

Keywords