Title Influence of Various Replacing Ratios of SCMs on Properties of High Fluidity Concrete
Authors Han, In-Deok
DOI https://doi.org/10.5659/JAIK_SC.2019.35.12.165
Page pp.165-172
ISSN 1226-9107
Keywords Supplementary cemetnitious materials; Fly ash; Blast furnace slag; High fluidity concrete
Abstract The aim of the research is to evaluate the influence of various replacing ratios of supplementary cementitious materials(SCMs) such as fly ash(FA), blast furnace slag(BS), and both FA and BS on general properties including segregation resistance as a powder based high fluidity concrete of normal strength grade with water-to-cement ratio 0.40. Specifically, by replacing the SCMs with low density powders, it was assessed that the decreased segregation resistance due to the decreased viscosity by J-ring test. As a result of the experiment, from the general test, the mixtures with SCMs showed increased segregation resistance by increased viscosity as the references, while some segregation was shown from J-ring test due to the decreased density of fresh state mixture related with the capacity of delivering coarse aggregate.