| 시멘트의 초기수화에서 폴리머의 영향 |
| 박필환, 송명신1, 이경희2 |
(주)아이에스오코리아
1강원대학교 화학공학과
2명지대학교 신소재공학과 |
| The Influence of Polymer on the Early Hydration of OPC |
| Phil-Hwan Park, Myong-Sin Song1, Kyoung-Hee Lee2 |
Isokorea Co., Ltd.
1Department of Chemical Engineering, Kangwon University
2Department of Materials Science and Engineering, Myongji University |
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| ABSTRACT |
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The properties of the polymer-modified mortars are influenced by the polymer film, cement hydrates and the combined structure between the organic and inorganic phases. Also, this quality of polymer modified cement strongly depend on weather condition and polymer cement ratio. To overcome this problem, polymer-modified cement were prepared by varying polymer/cement mass ratio (P/C) with $0{sim}20%$ and constant water/cement mass ratio of 0.5. The effect of polymer on the hydration of this polymer cement is studied on different polymer cement ratio. The results showed that the polymer cement paste have increased the viscosity in addition the amount of polymer dosage and the polymers is completed resulting in a reduced degree of hydration caused by different ion elution amount. Also we know that the reactants is calcium acetate as a results of chemical reaction between acetate group in EVA which is hydrolysis in water and $Ca^{2+}$ ion during hydration of cement. |
| Key words:
Polymer cement, Polymer film, Cement hydration |
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