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

Ceramics-Silikáty 41, (1) 29 - 34 (1997)


PROPERTIES OF A CEMENT BASED ON ALKALI-ACTIVATED SLAG
 
Škvára František, Kopecká Michaela
 
Department of Glass and Ceramics, Institute of Chemical Technology, Technická 5, 166 28 Prague

Alkaline activation of slags by alkali hydroxide, carbonate or silicate is an effective way of utilizing their hydraulic activity. The present study was concerned with alkaline activation of granulated blast-furnace slags by sodium silicate (water glass with various SiO₂/Na₂O ratios) in the presence of a plasticizer (lignine sulphonate), with the effect of specific surface area of the ground slag, and with that of the concentration of additives on the rheological properties, the time of initial set and the time development of strength.


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