THERMODYNAMIC MODELING OF CARBONATION OF CEMENTITIOUS MATERIALS IN CONTACT WITH SUPERCRITICAL CO2
Abstract eng: An existing analytical model is extended to simulate the attack of supercritical CO2 on cementitious materials. First, the existing carbonation model was modified by implementing the physical properties of the supercritical CO2. Furthermore, experiments of carbonation were conducted to verify the validity of the proposed model. It is found that the analysis model provides good estimation under 10% CO2 concentration, while it underestimates the results under supercritical conditions. Further investigation on the diffusion mechanism and porosity distribution is necessary to be able to give reasonable analytical estimation.
Contributors:
Publisher:
Japan Concrete Institute, Tokyo
Conference Title:
Conference Title:
First International Conference on Concrete Sustainability
Conference Venue:
Tokyo (JP)
Conference Dates:
2013-05-27 / 2013-05-29
Rights:
Text je chráněný podle autorského zákona č. 121/2000 Sb.
Record appears in:
Record created 2014-10-29, last modified 2014-11-18
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