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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Effects of Replacement Ratio and Curing Condition on Properties of Concrete Incorporating Blast-Furnace Slag
Author(s): K. Uji, D. Kwak, K. Kokubu, and K. Ono
Publication: Special Publication
Appears on pages(s): 559-573
Keywords: blast-furnace slag; carbonation; equivalence factor; replacement ratio; strength development
Abstract:The purpose of this study is to investigate the characteristics of strength development and carbonation rate due to the replacement ratio of blast-furnace slag and the curing conditions. Cementing efficiency factor k is introduced to evaluate the ability of blast-furnace slag. The water-binder ratios were 0.40, 0.50 and 0.65 containing blast-furnace slag with replacement ratio of 50%, and the specimens were cured in water for 5, 10, 28 days. After the designated curing duration, the compression tests were con-ducted and the concrete prisms were stored in accelerated carbonation test chamber. Test results show that the equivalence factor kc on strength development is larger than the factor kn on carbonation rate in every curing condition. Furthermore, the pore structure and the variation of calcium hydroxide and calcium carbonate were measured to evaluate the influence of replacement ratio of blast-furnace slag and curing condition.
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