Reactivity of fly ash in cement paste studied by means of thermogravimetry and isothermal calorimetry Universiteit Gent
Four paste mixtures with varying replacement level of the cement content by fly ash have been studied. Due to fly ash, the acceleration period decreased and a third hydration peak was noticed with isothermal calorimetry. The total heat after 7 days increased with increasing fly ash content. From 1 to 7 days, thermogravimetry showed a higher chemically bound water and Ca(OH)(2)-content for the pastes with fly ash. Between 7 and 14 days the ...