Publication details
Reactivity of slag in 15 years old self-compacting concrete
| Authors | |
|---|---|
| Year of publication | 2021 |
| Type | Article in Periodical |
| Magazine / Source | Construction and Building Materials |
| MU Faculty or unit | |
| Citation | |
| Web | https://doi.org/10.1016/j.conbuildmat.2020.120914 |
| Doi | http://dx.doi.org/10.1016/j.conbuildmat.2020.120914 |
| Keywords | Slag; Slag relict; SEM; EDX; CMSH-CASH |
| Description | The paper summarizes changes in slag microchemical composition and its hydration products in Portland cement self-compacting concrete after 15 years of exposure in water under laboratory conditions. Scanning electron microscopy (SEM) and X-ray microanalysis (EDX) techniques show the results of the degree of hydration of blast furnace slag particles. The experiment showed a connection between the slag content and the hydration process. It was verified that the average values of the base-forming oxides ratio (MgO + Al2O3)/CaO are inversely proportional to the slag content in the mixture. The results of these procedures provide valuable information not only in the long-term predictions of the effect of slag and other additives in cement concrete, but also in the evaluation of slag hydration in historical concrete structures. |