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Title |
Hydration and Compressive Strength of High-volume Fly Ash Cement Paste
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Authors |
황철성(Chul-Sung Hwang) ; 문은진(Eun-Jin Moon) |
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DOI |
https://doi.org/10.11112/jksmi.2017.21.5.156 |
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Keywords |
HVFC ; 하이볼륨 플라이애시 시멘트 ; 미소수화열 ; 압축강도 HVFC ; High-Volume Fly ash Cement ; Heat of hydration ; Compressive strength |
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Abstract |
Recently, researches on High-Volume Fly ash Cement(HVFC), which is replacing high portion of cement to fly ash, have been actively conducted to reduce CO2 formation. Though HVFC has various advantages, low strength development in early ages is pointed out as the biggest problem in the application of fly ash. In order to overcome such limitations, this study investigated the hydration and compressive strength characteristics of HVFC paste depending on the fly ash content with the mixing ratio varying from 0 to 80 %. Experimental results show that the HVFC paste with low water-binder ratio can overcome the limitation of low compressive strength at early ages. Also, from the result of heat flow delay, 50 % of fly ash weight ratio was the critical point of the filler effect.
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