고유동 콘크리트용 분리저감형 유동화제의 개발에 관한 기초적 연구 = A Fundamental Study on the Development of Segregation-Reducing Type Superplasticizer for High-Flowing Concrete

다국어 초록 (Multilingual Abstract)

The purpose of this paper is to develope segregation reducing type superplasticizer for high fluidity concrete and to manufacture high fluidity concrete by applying developed segregation reducing type superplasticizer using flowing concrete method in the rane go of 45% of W/C. According to test results, as dosage of superplasticizer increases, it shows that fluidity and bleeding increase, while air content and segregation resistance decrease. It also shows that adding of viscosity agent reduce bleeding and improve segregation resistance. Dosage of AE agent recovers loss of air contents during flowing Procedure. Combination of proper contents of superplasticizer, viscosity agent and AE agent make possible to develope segregation reducing type soperplasticizer According to experimental results, optimal proportion of superplasticizer, viscosity agent and AE agent show to be 1'0.60'0.027 Compressive strength of high fluidity concrete is simihar to comprssive strength of base concrete