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http://dx.doi.org/10.5345/JKIBC.2018.18.5.413

Fundamental Tests on Compressive Strength Development and Thermal Conductivity of Cement Pastes Including Fumed Silica  

Park, Jong-Beom (Department of Architectural Engineering, Kyonggi University Graduate School)
Yoon, Hyun-Sub (Department of Architectural Engineering, Kyonggi University Graduate School)
Yang, Keun-Hyeok (Department of Plant.Architectural Engineering, Kyonggi University)
Publication Information
Journal of the Korea Institute of Building Construction / v.18, no.5, 2018 , pp. 413-418 More about this Journal
Abstract
This fundamental study is to examine the significance and limitation of the fumed silica addition to enhance the early compressive strength gain and thermal conduction resistance of cement pastes. The fumed silica content varied from 0% to 1.6% of the cement content by wt% at an interval of 0.4%. Test results showed that the addition of fumed silica is favorable to enhancing the early strength gain of the cement pastes, indicating that 1-day compressive strength corresponded to 45% of the 28-day strength. This high-early strength gain rate is comparable to the trend commonly observed in steam-cured cement concrete. However, the addition of fumed silica little influenced the thermal conduction resistance of cement pastes.
Keywords
fumed silica; early strength; insulation; thermal conductivity;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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