Informace o publikaci
Investigation on early hydration of ternary Portland cement-blast-furnace slag-metakaolin blends
| Autoři | |
|---|---|
| Rok publikování | 2014 |
| Druh | Článek v odborném periodiku |
| Časopis / Zdroj | Construction and Building Materials |
| Fakulta / Pracoviště MU | |
| Citace | |
| Doi | http://dx.doi.org/10.1016/j.conbuildmat.2014.04.018 |
| Obor | Geologie a mineralogie |
| Klíčová slova | Ternary system; Portland cement; Metakaolin; Blast-furnace slag; Hydration |
| Popis | The paper investigates the hydration of ternary blends comprising Portland cement, blast-furnace slag and metakaolin. The isothermal calorimetry and "in situ" X-ray diffraction was used to evaluate the effect of metakaolin and blast-furnace slag on the early hydration of blends. XRD, DTA and SEM were used to analyze the hardened paste after 1 month of hydration. Metakaolin influences significantly the kinetics, mechanism and products of hydration at initial period of hydration causing the rapid formation of ettringite. Hemicarbonate aluminate hydrate is formed as a product of ettringite conversion due to the presence of reactive calcite in Portland cement. (C) 2014 Elsevier Ltd. All rights reserved. |