Dependency of C–S–H carbonation rate on CO2 pressure to explain transition from accelerated tests to natural carbonation

By N. Hyvert, Alain Gauthier Sellier, F. Duprat, P. Rougeau, P. Francisco. 2010

214 citations recorded by the source corpus.

Subfields: Civil and Structural Engineering

View Paper: https://www.semanticscholar.org/paper/104d584af608a5dadd9626b85374320fd185cc25

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In Civil and Structural Engineering

Citations in the corpus

Investigation of the carbonation mechanism of \{CH\} and C-S-H in terms of kinetics, microstructure changes and moisture properties (2014, background): “Moreover, ettringite can still be observed for moderate CO2 concentration [3] whereas it seem to disappear if CO2 > 10% [3, 14].”
Carbonation of cement paste : Understanding, challenges, and opportunities (2016, background): “other calcium bearing phases, such as CH, ettringite, and aluminates, seem to be completely “carbonatable” irrespective of the CO2 partial pressure (concentration) [44].”
Carbonation of concrete: the role of CO2 concentration, relative humidity and CO2 buffer capacity (2016, background): “Based on CO2 buffer capacity per volume of cement paste and the inclusion of additional parameters like for example the pressure of CO2 and the CO2 diffusion coefficient, the carbonation depth as a function of time can be modelled [19].”
Accelerated carbonation testing of alkali-activated slag/metakaolin blended concretes: effect of exposure conditions (2015, background): “Concentrations far exceeding this value (and even up to 100 %) are widely used in international testing programs for Portland cement concretes [28], although there has been limited systematic study of the influence of these parameters on the chemistry of non-traditional cements and concretes [37].”
Field assessment of the relationship between natural and accelerated concrete carbonation resistance (2013, background): “This relates carbonation depth to the exposure period according to Equation (1), as the latter has proven to be an adequate model for carbonation under natural [37-42] and also under accelerated [31, 37, 43-46] conditions.”
Relation between carbonation resistance, mix design and exposure of mortar and concrete (2015, background): “Therefore it is not clear, whether the results obtained with one specific accelerated test are transferable to another one and, even more important, to natural carbonation [15-20].”