2015 Volume 6 Pages 52-59
The development of concrete using industrial waste and industrial byproducts has been studied in various areas, in consideration of several factors such as protection of environmental resources or CO2 reduction. In particular, fly ash and blast furnace slag fine powder have been used as admixtures for the purpose of improving the quality of concrete. The standard curing is used in most cases in existing research, but less researches have been conducted under conditions similar to those of actual structure. In this study, concrete specimens made with fly ash or blast furnace slag fine powder are used. Their mechanical properties and durability were evaluated by using the standard curing and steam curing as experimental factors. As a result, higher value was shown in strength development of concrete than the concrete of normal cement alone. In addition, drying shrinkage strain and inhibitory effect on salt penetration was observed. As the result of this experiment, it was confirmed that the use of fly ash and blast furnace slag fine powder as PC member concrete is useful.
