Physicochemical Study of the Self-Disintegration of Calcium Orthosilicate (β→γ) in the Presence of the C12A7 Aluminate Phase.

ABSTRACT: The β-γ polymorphic transition of calcium orthosilicate (C2S) is a key phenomenon in cement chemistry. During this transition, the compound expands due to structural changes and a significant reduction in its density is observed, leading to its disintegration into a powder with a very high specific surface area. Owing to this tendency of the C2S material to "self-disintegrate", its production is energy-efficient and thus environmentally friendly. A physicochemical study of the self-disintegration process was conducted with the aim of determining how the amount of dodecacalcium hepta-aluminate (C12A7) in calcium orthosilicate (C2S) affects the temperature at which the polymorphic transi-tions from α'L-C2S to β-C2S and from β-C2S to γ-C2S undergo stabilization. The applied techniques include

SUBMITTER: Pyzalski M 

PROVIDER: S-EPMC8585463 | biostudies-literature | 2021 Oct

REPOSITORIES: biostudies-literature