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BIBTEX RIS

Thermal analysis of the 3CaO · Al2O3-CaSO4 · 2H2O-CaCO3-H2O system

1986; Elsevier BV; Volume: 106; Linguagem: Inglês

10.1016/0040-6031(86)85139-5

ISSN

1872-762X

Autores

V.S. Ramachandran, Chunmei Zhang,

Tópico(s)

Microbial Applications in Construction Materials

Resumo

Hydration products formed at different periods in mixtures containing C3A with either or both CaSO4 · 2H2O (0, 12.5, 25%) and CaCO3 (0, 12.5, 25%) were followed by differential scanning calorimetry and thermogravimetry. Depending on the length of hydration, different products were formed. Calcium carbonate retards or suppresses formation of the cubic aluminate hydrate in the hydration of C3 A, but it accelerates the formation of ettringite and its conversion to the monosulfoaluminate phase in the hydration of C3 A + gypsum.

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