Furnace slag powder used currently in Korea needs to add special functions in response to the increase of large-scale projects. In addition, it is advantageous in that it has a lower hydration heat emission rate than ordinary Portland cement and improves properies such as the inhibition of alkali aggregate reaction, watertightness, salt proofness, seawater resistance and chemical reslstance. However, furnace slag powder is not self-hardening, and requires activators such as alkali for hydration. Accordingly, if recycled fine aggregate, from which calcíum hydroxide is generated, and furnace slag, which requires alkali stimulation, are used together they play mutually complementary roles, so we expect to use the mixture as a resource-recycling construction material. Thus the present study purposed to examine the properties and characteristics of furnace slag powder and recycled aggregate, to manufacture recycled fine aggregate mortar using furnace slag and analyze its performance based on the results of an experiment, to provide materials on mortar using furnace slag as a cement additive and recycled fine aggregate as a substitute of aggregate, and ultimately to provide basic materials on the manufacturing of resource-recycled construction materials using binder and fine aggregate as recycled resources.

• 정상진(단국대학교 건축대학 건축공학과 교수, 공학박사) | Jung, Sang-Jin
• 한다희(단국대학교 대학원 건축공학과 박사과정) | Han, Da-Hee
• 임명관(단국대학교 대학원 건축공학과 석사과정) | Lim, Myung-Kwan Corresponding author