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Title |
The Fluidity of High Flowing Concrete According to the Component Ratio of Superplasticizer
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Authors |
김무한 ; 김용로 ; 김재환 ; 장종호 ; 이태희 |
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Keywords |
고성능감수제 구성비율; 유동성; 점성; 흡착률; 분산성능; component ratio of superplasticizer; fluidity; viscosity; adsorption ratio; dispersive capacity performance |
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Abstract |
It is the aim of this study to propose the fundamental data for the establishment of the application and qualify standard of the mixed type superplasticizer after investigating and comparing the fluidity of high flowing concrete according to the component ratio of superplasticizer such as naphthalene sulfonated and melamine sulfonated. The results of this study were shown as the followings; 1) The fluidity and adsorption ratio of cement-paste were improved according to the increasing of naphthalene sulfonated component ratio, and apparent viscosity of cement-paste was improved according to the Increasing of melamine sulfonated component ratio. 2) In case of using the granulated blast-furnace slag, the fluidity of cement-paste was considerably good and the adsorption ratio was decreased and in case of using fly-ash, the apparent viscosity and adsorption ratio of cement-paste were improved. 3) The dispersive capacity performance of concrete can be improved by means of the increasing of naphthalene sulfonated component ratio. Also the viscosity and early strength can be improved by means of the increasing of melamine sulfonated component ratio.
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