Publication details
Investigation on early hydration of ternary Portland cement-blast-furnace slag-metakaolin blends
| Authors | |
|---|---|
| Year of publication | 2014 |
| Type | Article in Periodical |
| Magazine / Source | Construction and Building Materials |
| MU Faculty or unit | |
| Citation | |
| Doi | http://dx.doi.org/10.1016/j.conbuildmat.2014.04.018 |
| Field | Geology and mineralogy |
| Keywords | Ternary system; Portland cement; Metakaolin; Blast-furnace slag; Hydration |
| Description | 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. |