ISSN 0862-5468 (Print), ISSN 1804-5847 (online) 

Ceramics-Silikáty 48, (1) 29 - 33 (2004)


EFFECT OF LIMESTONE FILLERS AND SILICA FUME POZZOLANA ON THE CHARACTERISTICS OF SULFATE RESISTANT CEMENT PASTES
 
El-Alfi E. A. 1, Radwan A. M. 1, El-Aleem S. Abed 2
 
1 National Research Center, Dokki, Cairo, Egypt
2 Faculty of Science, Cairo University, Egypt

Keywords: Portland cement, Limestone, Hydration, Compressive strength
 

Characteristics of sulfate resistant cement pastes containing limestone as well as silica fume cured up to 90 days were studied. The results show that the addition of 5 wt.% of limestone as well as silica fume to the above cement improve its mechanical properties as well as give a lower porosity at 3-90 days curing times. In addition, the free lime contents give lower values (2.4 and 0.91 wt.%) in the pastes containing 8 and 10 wt.% silica fume, respectively.


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