1. The effect of fly ash on the setting time of concrete - chemical or physical;Dodson,1981
2. Zusammensetzung und Eigenschaften von Flugaschen;Richartz;Zement-Kalk-Gips,1984
3. The influence of pulverized fuel ash on the early and long term strength of concrete;Cabrera,1980
4. Comparative studies of the effects of lignitic and bituminous fly ashes in hydrated cement systems;Diamond,1981