Carbonation of calcium aluminate cement pastes

L. Fernández-Carrasco; F. Puertas; M. T. Blanco-Varela; T. Vázquez

doi:10.3989/mc.2001.v51.i263-264.358

Carbonation of calcium aluminate cement pastes

Authors

L. Fernández-Carrasco Instituto de Ciencias de la Construcción Eduardo Torroja (CSIC)
F. Puertas Instituto de Ciencias de la Construcción Eduardo Torroja (CSIC)
M. T. Blanco-Varela Instituto de Ciencias de la Construcción Eduardo Torroja (CSIC)
T. Vázquez Instituto de Ciencias de la Construcción Eduardo Torroja (CSIC)

DOI:

https://doi.org/10.3989/mc.2001.v51.i263-264.358

Abstract

This work discusses the results from accelerated tests intended to investigate the ways the different curing methods affect the carbonation of calcium aluminate cements pastes (CAC). The research was focused on the mineralogical composition of hydrated and carbonated samples. The compressive strengths and the porosity of the samples have been determined. Results point out that vaterite and aragonite are formed as a result of carbonation of both cubic and hexagonal calcium aluminate hydrates. The polymorph of calcium carbonate formed does not depend on the curing process. Carbonation rates is higher in hexagonal than in cubic hydrates. Results obtained through this study evidence that, as a consequence of the carbonation process of CAC pastes, in test conditions, an increase of the mechanical strengths occurs.

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Published

2001-12-30

How to Cite

Fernández-Carrasco, L., Puertas, F., Blanco-Varela, M. T., & Vázquez, T. (2001). Carbonation of calcium aluminate cement pastes. Materiales De Construcción, 51(263-264), 127–136. https://doi.org/10.3989/mc.2001.v51.i263-264.358

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Issue

Vol. 51 No. 263-264 (2001)

Section

Research Articles

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