Materiales de Construcción, Vol 36, No 204 (1986)

Effect of MgO on compositions of the system CaO-Al2O3-Fe2O3. Solubility


https://doi.org/10.3989/mc.1986.v36.i204.883

Ángel Palomo
ICCET/CSIC, Spain

M. Teresa Blanco
ICCET/CSIC, Spain

Tomás Vázquez
ICCET/CSIC, Spain

Abstract


Five different compositions belonging to the equilibrium system CaO-Al2O3-Fe2O3 were dopep with a fixed quantity of MgO (6,5% wt).
The compositions, which lie in different primary fields of crystallization and in different triangles of compatibility, were submitted to several thermal treatments. Each composition, which had previously been melted, originates in its solidification the aluminates and ferrites which are usual in the interstitial phase of clinker Portland, although they are in different microstructural arrangements.
The effect of MgO on the generated microstructures has been shown. Also, the solubility of MgO on the aluminic and ferritic phases has been measured.

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