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http://dx.doi.org/10.4334/JKCI.2004.16.2.147

The Fluidity of High Flowing Concrete According to the Component Ratio of Superplasticizer  

Kim Moo-Han (Dept. of Architectural Engineering, Chungnam National University)
Kim Yong-Ro (Dept. of Architectural Engineering, Chungnam National University)
Kim Jae-Hwan (Dept. of Architectural Engineering, Chungnam National University)
Ho Jang-Jong (Dept. of Architectural Engineering, Chungnam National University)
Lee Tae-Hee (Dept. of Architectural Engineering, Chungnam National University)
Publication Information
Journal of the Korea Concrete Institute / v.16, no.2, 2004 , pp. 147-154 More about this Journal
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.
Keywords
component ratio of superplasticizer; fluidity; viscosity; adsorption ratio; dispersive capacity performance;
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