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Strength Development and Durability of High-Strength High-Volume GGBFS Concrete
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 Title & Authors
Strength Development and Durability of High-Strength High-Volume GGBFS Concrete
Kim, Joo-Hyung; Jeong, Ji-Yong; Jang, Seung-Yup; Jung, Sang-Hwa; Kim, Sung-Il;
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 Abstract
To develop high-strength high-volume ground granulated blast-furnace slag (GGBFS) concrete, this study investigated the characteristics of strength development and durability of concrete with the water-to-binder ratio of 23% and the GGBFS replacement ratio of up to 65%. The results show that the compressive strength of GGBFS blended concrete is lower than that of ordinary Portland cement (OPC) concrete up to 3-day age, but the becomes higher after 7-day age. Together with strength increase, the pore structure becomes tighter, and thus the resistance to chloride ion penetration increases. Therefore, the GGBFS blended concrete has high resistance to freezing and thawing without additional air-entraining, and high resistance to carbonation despite low amount of calcium hydroxide (). On the other hand, if silica fume (SF) is blended with GGBFS, the strength becomes lower than that of the concrete blended with GGBFS only, and the resistance to chloride ion penetration deceases. Therefore, it needs further studies on the reaction of SF in high-strength high-volume GGBFS concrete.
 Keywords
Ground granulated blast-furnace slag (GGBFS);High strength;High volume;Strength;Durability;
 Language
Korean
 Cited by
1.
PSC 교량용 고강도 콘크리트의 재료 특성 평가,이주하;최락준;

한국방재학회 논문집, 2016. vol.16. 6, pp.69-75 crossref(new window)
1.
Structural Capacity of Water Channel Fabricated of Blast Furnace Slag Concrete, Journal of the Korean Recycled Construction Resources Institute, 2016, 4, 4, 446  crossref(new windwow)
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