Hydration of Portland Cement in Presence of Silica Fume
Maha Rabea Abu-Serea; D. A. Ahmed; Essam A. Kishar;
Abstract
The hydration of ordinary Portland cement at room temperature was studied in the presence of silica fume. The silica fume content was 0, 5, 10, 15 and 20 wt % of the weight of cement for all mixtures. The mixtures were stirred in 100 ml deionized water for different time intervals up to 7 days. The filtered solutions were analyzed for pH, silicon and calcium ions. Most of the calcium hydroxide released during the hydration of Portland cement was reacted with silica fume within 7 days. The X-ray diffraction and scanning electron microscopy studies on the hydration products showed a considerable reduction in the amount of calcium hydroxide as result of its reaction with silica fume. The optimum condition obtained by addition of 20% SF.
Other data
Title | Hydration of Portland Cement in Presence of Silica Fume | Authors | Maha Rabea Abu-Serea ; D. A. Ahmed ; Essam A. Kishar | Keywords | Silica Fume;Cement Hydration;XRD;SEM | Issue Date | Jul-2010 | Publisher | ICE Publishing | Journal | Advances in Cement Research | Volume | 22 | Issue | 3 | Start page | 143 | End page | 148 | DOI | 10.1680/adcr.2010.22.3.143 |
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