Szczegóły publikacji
Opis bibliograficzny
Synthesis, characterization and hydration analysis of $Ba^{2+}$-, $Cu^{2+}$- or $Bi^{3+}$-doped $CaO–Al_{2}O_{3}–ZrO_{2}$-based cements / Dominika MADEJ, Renata Boris // Journal of Thermal Analysis and Calorimetry ; ISSN 1388-6150. — Tytuł poprz.: Journal of Thermal Analysis ; ISSN: 0368-4466. — 2019 — vol. 138 iss. 6, s. 4331–4340. — Bibliogr. s. 4340, Abstr. — Publikacja dostępna online od: 2019-03-05
Autorzy (2)
- AGHMadej Dominika
- Boris Renata
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 126293 |
|---|---|
| Data dodania do BaDAP | 2019-12-13 |
| Tekst źródłowy | URL |
| DOI | 10.1007/s10973-019-08142-7 |
| Rok publikacji | 2019 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Creative Commons | |
| Czasopismo/seria | Journal of Thermal Analysis and Calorimetry |
Abstract
This paper deals with the design, synthesis, hydration mechanism and hydration products of novel Ba 2+ -, Cu 2+ - or Bi 3+ -doped CaO–Al 2 O 3 –ZrO 2 -based cementitious materials used for heavyweight concrete mixes. The results of the heating microscopy thermal analysis indicated that both Cu and Bi in a Ca 7 ZrAl 6 O 18 -based cement clinker can effectively reduce the sintering temperature by 150–200 °C. Incorporation of barium for the synthesis of calcium zirconium aluminate-based hydraulic binder increased its thermal resistance since Ba 2+ -doped Ca 7 ZrAl 6 O 18 along with accessory (Ca,Ba)ZrO 3 with a perovskite‐type structure and BaAl 2 O 4 phases having high melting points were formed. The presence of metal ions, i.e., Cu 2+ or Bi 3+ , created conditions which were favorable for the formation of hexagonal calcium aluminate hydrates rather than the cubic one, as confirmed by coupled DSC–TG/EGA–MS thermal analysis techniques and X-ray diffraction. For the Ba 2+ doping ions, this effect was the least noticeable. The effect of metal ions including Ba 2+ , Cu 2+ and Bi 3+ on microstructural features of cement pastes was investigated by SEM–EDS. These doping ions strongly affected the morphologies of Ca–Al hydrates. © 2019, The Author(s).
