폐(廢)콘크리트계(系) 미분말(微粉末)의 소성조건(燒成條件)에따른 수화성(水化性) 회부(回復) = Recovering Hydration Performance of Cementitious Powder by Concret Waste according to Burning Temperature

다국어 초록 (Multilingual Abstract)

The purpose of this study is the development of a recycling process to recover the hydrated ability of cement hydrate which accounts for a large proportion of cementitious powder by concrete waste in order to recycle cementitious powder by concrete waste as recycle cement. Therefore, after having theoretical consideration based on the properties of high-heated concrete, we consider the properties of hydration of cementitious powder in hardened mortar under various temperature conditions. As a result of experiment, it is revealed that an effective development of recycling cement is possible since the cementitious powder by concrete waste recovers a hydraulic property during burning at 600℃ or 700℃. And it is shown that the fluidity of mortar decreases rapidly as the burning temperature of recycle cement increases. however, the improved effect of fluidity is predominant if adding the additive such as fly-ash or blast furnace slag.