분쇄된 플라이애시를 혼합한 3성분계 시멘트의 유동특성 (Rheological Properties of Ordinary Portland Cement - Blast Furnace Slag - Fly Ash Blends Containing Ground Fly Ash)

서지정보

· 발행기관 : 한국세라믹학회
· 수록지 정보 : 한국세라믹학회지 / 46권 / 1호 / 58 ~ 68페이지
· 저자명 : 박효상, 유동우, 변승호, 송종택

초록

In this study, rheological properties of ternary system cement containing ground fly ash(F3, Blaine specific surface area 8,100 ㎠/g)
were investigated using mini slump, coaxial cylinder viscometer and conduction calorimeter. In the results, the segregation resistance
was observed at high W/B and PC area while the replacement ratio of F3 was increasing. The 2:5:3 system was shown in higher
fluidity and lower hydration heat than 3:4:3 system. The segregation range of cement pastes occurred over 175 mm in average diameter
by mini slump and below 10 dynesec/㎠ of the plastic viscosity or below 50 cP of the yield stress by coaxial cylinder viscometer.
It was observed that even if BFS and FA blended together admixture properties would remaine as they were separately. The properties
of admixture would not be changed. On the above results, the decreased replacement ratio of OPC and increased replacement ratio
of admixtures would be possible.

영어초록

In this study, rheological properties of ternary system cement containing ground fly ash(F3, Blaine specific surface area 8,100 ㎠/g)
were investigated using mini slump, coaxial cylinder viscometer and conduction calorimeter. In the results, the segregation resistance
was observed at high W/B and PC area while the replacement ratio of F3 was increasing. The 2:5:3 system was shown in higher
fluidity and lower hydration heat than 3:4:3 system. The segregation range of cement pastes occurred over 175 mm in average diameter
by mini slump and below 10 dynesec/㎠ of the plastic viscosity or below 50 cP of the yield stress by coaxial cylinder viscometer.
It was observed that even if BFS and FA blended together admixture properties would remaine as they were separately. The properties
of admixture would not be changed. On the above results, the decreased replacement ratio of OPC and increased replacement ratio
of admixtures would be possible.

참고자료

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