An Experimental Study on the Application of Recyeled Aggregate Concrete Using the Demolished High Strength Conrete (Part 1 The Experimental Program and Preliminary Experiment)

고강도영역 재생골재 콘크리트의 현장적용을 위한 실험적 연구 (제 1보 실험계획 및 예비실험)

Large-scaling recycling of demolished concrete will contribute not only to the solution of a growing waste disposal problem. it will also help to conserve natural resoures of sand and gravel and to secure future supply of reasonly priced aggregates for builiding and other construction purposes within large urban areas. because recycled aggregate particles consist of substaintial amount of relatively soft cement paste component, it is less resistant to mechanical actions. With this view in mind, to obtain a reference data for the development of recycling system and to a basic data the guideline of recycled aggregate concrete construction and mix design, this study deals with the comparative analysis of the workability and engineering properties of recycled aggregate concrete according to the factors, such as blending ratio of recycled aggregate with the natural aggregate, addition of flyash, water cement ration.