Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Solution chemistry of cubic and orthorhombic tricalcium aluminate hydration
https://orcid.org/0000-0001-6097-2088
AbstractThis paper presents a solution chemistry-focused analysis of orthorhombic and cubic tricalcium aluminate (orth-C3A and cub-C3A, respectively) hydration. It is shown that the different solubilities of cub- and orth-C3A influence the bulk aqueous Ca to Al concentration ratio and the C3A/solution interface chemistry. The results are consistent with the bulk solution chemistry controlling orth-C3A dissolution, and with cub-C3A dissolution controlled by the formation of an Al-rich leached layer and adsorption of Ca‑sulfur ion pair complexes onto this layer. The polynaphthalene sulfonate-based admixture used here is identified to modify the solution chemistry and retard cub-C3A dissolution. Strategies to inhibit C3A dissolution in Portland cement are discussed.
Solution chemistry of cubic and orthorhombic tricalcium aluminate hydration
https://orcid.org/0000-0001-6097-2088
AbstractThis paper presents a solution chemistry-focused analysis of orthorhombic and cubic tricalcium aluminate (orth-C3A and cub-C3A, respectively) hydration. It is shown that the different solubilities of cub- and orth-C3A influence the bulk aqueous Ca to Al concentration ratio and the C3A/solution interface chemistry. The results are consistent with the bulk solution chemistry controlling orth-C3A dissolution, and with cub-C3A dissolution controlled by the formation of an Al-rich leached layer and adsorption of Ca‑sulfur ion pair complexes onto this layer. The polynaphthalene sulfonate-based admixture used here is identified to modify the solution chemistry and retard cub-C3A dissolution. Strategies to inhibit C3A dissolution in Portland cement are discussed.
Solution chemistry of cubic and orthorhombic tricalcium aluminate hydration
https://orcid.org/0000-0001-6097-2088
AbstractThis paper presents a solution chemistry-focused analysis of orthorhombic and cubic tricalcium aluminate (orth-C3A and cub-C3A, respectively) hydration. It is shown that the different solubilities of cub- and orth-C3A influence the bulk aqueous Ca to Al concentration ratio and the C3A/solution interface chemistry. The results are consistent with the bulk solution chemistry controlling orth-C3A dissolution, and with cub-C3A dissolution controlled by the formation of an Al-rich leached layer and adsorption of Ca‑sulfur ion pair complexes onto this layer. The polynaphthalene sulfonate-based admixture used here is identified to modify the solution chemistry and retard cub-C3A dissolution. Strategies to inhibit C3A dissolution in Portland cement are discussed.
Solution chemistry of cubic and orthorhombic tricalcium aluminate hydration
Myers, Rupert J. (Autor:in) / Geng, Guoqing (Autor:in) / Rodriguez, Erich D. (Autor:in) / da Rosa, Priscila (Autor:in) / Kirchheim, Ana Paula (Autor:in) / Monteiro, Paulo J.M. (Autor:in)
Cement and Concrete Research ; 100 ; 176-185
29.06.2017
10 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Solution chemistry of cubic and orthorhombic tricalcium aluminate hydration
| Online Contents | 2017
Solution chemistry of cubic and orthorhombic tricalcium aluminate hydration
| British Library Online Contents | 2017
Solution chemistry of cubic and orthorhombic tricalcium aluminate hydration
| British Library Online Contents | 2017
Solution chemistry of cubic and orthorhombic tricalcium aluminate hydration
| British Library Online Contents | 2017
Hydration of tricalcium aluminate
| Engineering Index Backfile | 1933