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http://dx.doi.org/10.4191/KCERS.2010.47.5.387

Effect of Superplasticizer on the Early Hydration Ordinary Potland Cement  

Na, Seung-Hun (Research Institute of Chemical Engineering, Kangwon National University)
Kang, Hyun-Ju (Research Institute of Chemical Engineering, Kangwon National University)
Song, Young-Jin (Research Institute of Chemical Engineering, Kangwon National University)
Song, Myong-Shin (Research Institute of Chemical Engineering, Kangwon National University)
Publication Information
Journal of the Korean Ceramic Society / v.47, no.5, 2010 , pp. 387-393 More about this Journal
Abstract
To improve concrete quality one of the most widely used chemical admixtures is polycarboxylate type superplasticizer. Unlike lignosulfonate and naphthalene-sulfonate, it has high dispersion property and excellent sustainable dispersion property for cement and concrete. Thus, polycarboxylate type superplasticizer has been widely used as a high-performance water reducing admixture together with silica fume in high-performance concrete and other applications for the dispersion of high-strength concrete over 100 MPa. However, even though there have been many studied on the dispersion of concrete by the structure of polycarboxylate type superplasticizer, there have a few studied that clarified the relationships between its rheological properties and microstructure properties in the early hydration behavior of ordinary portland cement. To investigate the correlations between the rheological properties and microstructure of cementitious materials with polycarboxylate type superplasticizer, this study experimented on the rheology, pore structure, heat evolution, and consistency in early hydration as well as on the compressive strength by early dispersion characteristics.
Keywords
Cement; Polycarboxylate; Pore structure; Heat of hydration;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
Times Cited By SCOPUS : 2
연도 인용수 순위
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