Carbonation process in lime pastes with different water/binder ratio

Authors

  • M. Arandigoyen Departamento de Química. Universidad de Navarra, Navarra
  • J. I. Álvarez Departamento de Química. Universidad de Navarra, Navarra

DOI:

https://doi.org/10.3989/mc.2006.v56.i281.88

Keywords:

kinetics, microstructure, carbonation, blended pastes

Abstract


Most research on binder carbonation is based on the analysis of depth changes in the carbonation front. Moreover, previous studies have dealt with mortars, where aggregates play a role in the variations in carbonation patterns. In the approach adopted in the present study, carbonation was determined in terms of the variation in weight resulting from CO2 absorption, and a new parameter (independent of the drying process), denominated A, was established. This parameter was assessed in several lime pastes with different W/B (water/binder) ratios and its variations were correlated to paste microstructure. Due to the type of porosity prevailing in lime pastes, diffusion took place according to Fick's law; water was retained not by capillarity but by surface adsorption. Drying did not retard carbonation in lime pastes

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Published

2006-03-30

How to Cite

Arandigoyen, M., & Álvarez, J. I. (2006). Carbonation process in lime pastes with different water/binder ratio. Materiales De Construcción, 56(281), 5–18. https://doi.org/10.3989/mc.2006.v56.i281.88

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Research Articles